Mapping Environmental/Sustainable Governance Research in Chile: A Bibliometric and Network Analysis

: In light of increasing concerns about the efﬁcacy of environmental governance (EG) to address the global sustainability challenges of the Anthropocene era, more integrative, transversal, and far-reaching approaches, referred to here as sustainability governance (SG), are gaining ground both in governance praxis and in research. Empirical and methodological challenges emerge from this conceptual analytical cleavage between EG and SG. Through a combination of bibliometric and network analysis, the objective of this article is to explore the structure and trends in the ﬁeld of EG/SG research in Chile, internationally regarded as the posterchild of Latin-American EG/SG, and derive empirical insights to feed the analytical distinction between EG and SG that informs global debates about ways forward towards an effective governance in the Anthropocene. Our results show that scientiﬁc research on EG/SG has experienced a signiﬁcant increase since the 1990s. We ﬁnd that while the topical range of the ﬁeld is broad, including water governance, biodiversity conservation, environmental institutions, climate change and energy issues, and environmental conﬂicts and justice, key cross-cutting socio-economic and cultural dynamics underpinning the prevalent, yet fundamentally unsustainable, ways of life and economic model are virtually absent from the ﬁeld, against their growing presence in diagnoses of “sustained unsustainability”.


Introduction
The very existence of any human collectivity entails the addressing of problems, whose cultural and political resolution makes up the basis of the social fabric [1,2].In the 1990s, the concept of "governance" was coined to account for the modes of response to these problems [3].Governance encompasses a broad set of entities and phenomena and refers to the processes of decentralizing authority in order to define social problems and responses within a context of growing diversity and complexity in society [4][5][6].Thus, it seeks to account for the hybridization of all kinds of efforts to govern the res publica by different socio-political actors (public and private, each oriented by their own interests and rationalities) on different geographical scales [3].
Traditionally in social theory, at the core of governance processes was the issue of intrasocial and inter-social cohesion (internal order, socialization, relations between collectivities, etc.).However, during the late 20th century, with the increasing awareness of the impacts of human activities on natural ecosystems, the relation between human societies and their ecological environment gradually entered the sphere of governance, as attested by an exponential increase in environmental accords, norms, and regulations at the diverse levels of sub-, supra-and trans-national governance [4,7,8].
In retrospect, the problem of socio-ecological sustainability can be said to have entered the sphere of politics in the 1970s [9,10].The "Great Acceleration" observed since the mid-20th century [11]-that is, the generalization of ecologically unsustainable exponential growth-trends in virtually all areas of human activity, with its concomitant impact on local and global ecosystems-has implied that, while conventional environmental problems such as water or air pollution remain important issues in many local settings, global or "earth-system" ecological change processes progressively took center stage.Thus, socioecological sustainability has become a new problem of collective life on a planetary scale, insofar as the future of many forms of life on Earth (including that of human beings), as well as a certain dynamic balance of bio-geo-chemical systems that are being fundamentally disrupted, depend on the regulation of the social world, as implied in the idea of the "Anthropocene" [12][13][14].
A key distinction is required at this point between 'lifeworld' and 'system' sustainability.The "environmental state" and governance structures that took shape since the 1970s are set up to create (if successful) an environmentally sustainable lifeworld, with little regard for the fact that globally hegemonic ways of life are predicated, however, on a fundamentally unsustainable reproductive system [15].A comprehensive transition to systemic sustainability, on the other hand, will require deep changes in the lifeworld.In accordance with this distinction between lifeworld sustainability and systemic sustainability, and for the analytic purposes of this article, we will distinguish between two concepts of governance: "environmental governance" (EG) and "sustainability governance" (SG).More specifically EG refers to "the set of regulatory processes, mechanisms and organizations through which political actors influence environmental actions and outcomes" [6], often involving negotiated interactions and participatory processes encompassing a broad range of actors (public authorities, organized groups, market actors, civil society) [16].EG is typically (though not necessarily) short term, reactive in character, and addresses discrete socio-environmental problems within specific spatiotemporal coordinates.By contrast, SG refers to the steering of social change as it intersects with environmental changes, and vice versa, and is typically long term, integrative, and addresses diffuse and transversal issues [7,15].The neat conceptual distinction drawn here between SG (system sustainability) and EG (lifeworld sustainability) is not matched by equal clarity in the literature, however, where the prevailing terminology tends to hybridize both accounts, including "sustainability governance" [4,7,17], "socio-ecological governance" [5,18],"environmental governance" [6,19], and even Earth-system governance [20].
EG/SG correspond to concrete answers implemented by society based on the process of reflection (approaches/discourses) triggered by the recognition of ecological conditions and changes (diagnosis).Since the environment entered the political arena in the 1960s-70s, voices raising alarm regarding the state of ecological systems keep multiplying, both in the social and in the scientific sphere (IPCC Assessment Reports, Millennium Ecosystems Assessment, Global Environment Outlook, among others).In parallel, a global loosely networked system of EG/SG has been established, including international, national and local platforms (with institutions, plans, laws, strategies, etc.), and citizen initiatives for sustainability have swarmed [8].The state of the planetary biosphere has continued to decline, often at an accelerating pace (see, i.e., [21]).What used to be conceived of in terms of a global environmental crisis is increasingly reframed as an ecological crisis [8]-that is, a crisis of relationality, where environmental issues cannot be meaningfully addressed as separate from the technoeconomic and sociocultural matrix underpinning individualistic, resource-intensive ways of life which have been rapidly spreading across the planet since the last decades of the past century [22,23].
Correspondingly, EG/SG has become the object of study of academic researchers crossing multiple disciplines that seek to understand and assess the manifold interventions undertaken to change our values, behavior, and reconfigure our practices and institutions.The objects of EG/SG research are the processes and patterns that emerge from governance activities performed by diverse actors at all levels of decision-making (including governments but also non-state actors such as business, NGO and citizenry) in order to respond to the problems of socio-ecological sustainability.For example, at international level, EG/SG research focuses on multinational institutions (such as the UN or OECD) (i.e., [24][25][26]) or on international agreements (for example climate or biodiversity agreements but also trade agreements) (i.e., [27][28][29]).At national level, in turn, work on EG/SG focuses on the design and implementation of environmental policies and regulations, environmental institutions, interface between science and policy, inclusion of civil society or private actors, among others.At the micro-level, research on EG/SG focuses on social transition initiatives, such as alternative food networks, renewable energy communities, modes of consumption, or commons governance.Yet as the Anthropocene is characterized by complex socio-ecological dynamics, research on EG/SG is constantly evolving to help understand what kind of responses and political strategies would be most appropriate and effective to ensure systemic sustainability.
Worldwide there is an exponential growth of research and literature on EG/SG calling for new strategies capable of dealing with large amounts of information.In this context, the contribution of this paper is twofold.First, on the methodological front, the combination of bibliometric and network analysis of a large corpus of data allows for both a synchronic (mapping) and diachronic structuring of the research field on EG/SG, accounting for the identification of topical foci, dimensions, actors, patterns of inter-disciplinary collaboration, etc.Secondly, by focusing on the Chilean field of EG/SG research, this paper contributes to enlarging the empirical base for the conceptual distinction between EG and SG, including the global South.Moreover, Chile being internationally regarded as the posterchild of Latin-American EG/SG, our inquiry allows a glimpse into the regulative ideals in EG/SG research at a broader regional/international level, but also into topics and dimensions omitted or excluded from the field.
In line with the above, the general objective of the paper is to identify the trends and structuring patterns of academic knowledge production on EG/SG in Chile, in order to feed empirical insights into the analytical distinction between EG and SG.The paper thus builds on a double register: an empirical-descriptive and a critically aimed conceptual-analytic one, with the latter drawing on the former.Accordingly, our study sought to answer the following questions: (RQ1) What are historical trends of academic production on EG/SG in Chile?(RQ1a)When does this area of study appear in Chile and how is it evolving?(RQ1b)What are the main topics covered by scientific production and how do they evolve and change over the time?
(RQ2) Who are the most influential actors, research centers and communities, articles and journals that participate in the production and circulation of academic knowledge on EG/SG in Chile?(RQ3) How are the interactions among (collective) actors participating in knowledge production on EG/SG in Chile configured?(RQ3a)What scientific communities can be identified based on the analysis of interactions among actors in the network?(RQ3b)What attributes of the actors (cognitive, institutional, and disciplinary) allow us to understand the structure of their interactions?(RQ3c) How are the dynamics of interdisciplinary and inter-institutional collaboration configured in the interaction network?
This paper is organized as follows.Section 2 describes the material and methods.The research results and analyses are presented in Section 3. Section 4 offers some threads for discussion, and Section 4 reaches some conclusions.

Materials and Methods
The insights we sought to derive about EG/SG research where drawn from the study of academic production through the method of network analysis [30,31], based on the tools of bibliometrics [32].Bibliometric analysis allows us to grasp the main characteristics and trends in a given research field through the analysis of a large amount of historical literature data.For the present study, we performed a query in the WoS, Scopus, Research Gate, Academia.eduand Google Scholar databases during December 2018.Three selection criteria were applied: (1) original article or book chapter (thus excluding books and grey literature) in English or Spanish, (2) published before 2018, and (3) referring to EG/SG in Chile.The search protocol applied is summarized in Table 1.The query returned 236 documents published between 1993 and 2018 (henceforth, referred to as data set) by a total of 449 authors and covering twenty different topics: Air, Water, Aquatic ecosystems, Biodiversity, Climate change, Energy, Environmental education, Environmental governance, Environmental Policies & Laws, Global change, Forests, Hydroelectricity, Mining, Public policies, Social movements, Risk, Sustainable agriculture, Sustainable cities, Tourism and Management of waste.These topics refer to the subjects analyzed through EG/SG lens.Some include the problem of governance itself as a central theme of analysis (particularly the topic "Environmental Policies & Laws", which is one of the most important topics; others analyze more particularly the governance of certain areas of sustainability, such as air, water, biodiversity, climate change, etc.We found that the structure of the scientific landscape of EG/SG in Chile strongly depend on these topics.It is these topics (together with institutional affiliation) that allow us to explain the interactions between the actors We used the following information from the data set to build a database of the academic production of research on EG/SG in Chile.First, we systematized data on authors, title, journal, year of publication, and keywords.We also added data on the topics covered (inferred from the reading of the abstracts or of the full text).Secondly, we drew all the information contained in the bibliographic references: cited authors, document title and type (article, book, chapter, letter, law, thesis, report, etc.), journal, year of publication, and country of the journal or publisher.From this database, we built different kinds of networks with GEPHI software (https://gephi.org/,accessed on 2 June 2021) (keywords association network, citations networks and collaboration networks).In addition, we collected a series of attributes associated with the actors of the network: gender, disciplinary background, and institutional affiliation in order to carry out qualitative analysis of the structure of the networks.Table 2 summarizes the data and method used to cover the research questions.

Statistics from the Data Set
Figure 1 shows the evolution of publications on EG/SG in Chile between 1993 and 2018.The results show a significant increase in the overall academic production on EG/SG in Chile since the 1990s, notwithstanding the more recent appearance of some topics such as energy, hydroelectric power, or global change (see Figure 2).In the last ten years, the number of publications has roughly quadrupled.This tendency indicates a growing academic interest in this field of research, concomitant with the progressive strengthening of the institutional framework and of the endowment for science and technology in Chile [33].

Statistics from the Data Set
Figure 1 shows the evolution of publications on EG/SG in Chile between 1993 and 2018.The results show a significant increase in the overall academic production on EG/SG in Chile since the 1990s, notwithstanding the more recent appearance of some topics such as energy, hydroelectric power, or global change (see Figure 2).In the last ten years, the number of publications has roughly quadrupled.This tendency indicates a growing academic interest in this field of research, concomitant with the progressive strengthening of the institutional framework and of the endowment for science and technology in Chile [33].Considering the topics covered by the literature, we can observe specific trends (see Figures 2-4).The first trend refers to the topical foci throughout the overall period: environmental policies, laws, and regulations; aquatic ecosystems (including rivers, wetlands, lakes, and oceans and seas, but also artificial aquatic ecosystems such as salmon farms, which is a hot subtopic, as we will see); water (access, use, and legal regime, including water markets, which is a top keyword); climate change; global change (i.e., integrative studies offering an overview of socio-ecological sustainability worldwide); forests; energy (with an emphasis on hydro-energy); and biodiversity.Second observable trend: the topic "environmental policies and laws" is present from the beginning and remains the most Considering the topics covered by the literature, we can observe specific trends (see Figures 2-4).The first trend refers to the topical foci throughout the overall period: environmental policies, laws, and regulations; aquatic ecosystems (including rivers, wetlands, lakes, and oceans and seas, but also artificial aquatic ecosystems such as salmon farms, which is a hot subtopic, as we will see); water (access, use, and legal regime, including water markets, which is a top keyword); climate change; global change (i.e., integrative studies offering an overview of socio-ecological sustainability worldwide); forests; energy (with an emphasis on hydro-energy); and biodiversity.Second observable trend: the topic "environmental policies and laws" is present from the beginning and remains the most important topic throughout the period, reinforced further since the end of the 2000s coinciding with the reform of environmental institutions and legislation in Chile, as per Law 20.417.In this topic, the focus is explicitly on the configuration of forms of environmental governance at a general level (including mechanisms of transparency, participation, accountability, precaution, etc.) in the Chilean political context and their limits vis-à-vis SG.The articles in this topical category adopt a very critical perspective regarding the gap between formal arrangements and actual impact in a highly centralized country with a primarily technocratic environmental policy [34] that responds to exogenous demands and standards for EG, among others from the UN and OECD [35,36] (See more details below in point 3.5.Main Research themes, which underlines the relative importance of this topic in the total data set).Biodiversity is also present from the beginning (Chile having signed and ratified the Convention on Biological Diversity in 1994) and shows a rising curve, its importance, however, decreasing with respect to other topics (see Figure 3).Aquatic ecosystems and the issue of water have also remained central since the 1990s, exhibiting a sustained increase.The topic of forests has been present to a lesser extent since the beginning of the debates on EG in Chile and continues until the 2010s.The emerging topics of energy and climate change have gained traction in the last decade (although climate change has been present more marginally since the 1990s).This is consistent with the growing global concern with climate governance (mitigation and adaptation) [37,38] and, at the national level, with the inclusion of climate change as a strategic axis within the Ministry of the Environment.The topic of energy goes hand in hand with that of climate change, with a focus on renewable energy and energy transition.Finally, some topics have been relegated in importance since the 2000s: sustainable tourism, air quality, sustainable cities, mining, waste, and risk management.

Analysis of Journals
The surveyed articles were published in 148 different journals.Table 3 shows the top 10 journals and the respective country of publication.We see a pool of four journals in first line: Geoforum; Environmental Science & Policy; Environment, Development and Sustainability; and Sustainability.However, they cover only between 2%-4% of the total articles in our data set.The publications of the data set are spread among a large number of different journals, mainly from the United Kingdom (25%), Chile (23%), United States (17%) and Netherlands (13%), consistent with the centralizing pattern of global scientific publications in the global north [39][40][41].

Analysis of Journals
The surveyed articles were published in 148 different journals.Table 3 shows the top 10 journals and the respective country of publication.We see a pool of four journals in first line: Geoforum; Environmental Science & Policy; Environment, Development and Sustainability; and Sustainability.However, they cover only between 2%-4% of the total articles in our data set.The publications of the data set are spread among a large number of different journals, mainly from the United Kingdom (25%), Chile (23%), United States (17%) and Netherlands (13%), consistent with the centralizing pattern of global scientific publications in the global north [39][40][41].However, if we look instead at the database of citations retrieved from the corpus, we get a different picture (See Table 4 and Figure 4), namely that even though the analysis However, if we look instead at the database of citations retrieved from the corpus, we get a different picture (See Table 4 and Figure 4), namely that even though the analysis is similar in terms of country-based distribution, United Kingdom (29%), USA (28%), and the Netherlands (16%) concentrate 73% of the total citation, while Chile scores fourth with only 14%.

Analysis of Academic Disciplines
According to the OECD category scheme for R&D [43], the main disciplines partic pating in academic production on EG/SG in Chile are the following: social sciences (49% natural sciences (18%), engineering and technology (17%), agricultural and veterinary sc ences (13%), and, more marginally, medical and health sciences (2%).This result show that, overall, EG/SG research is a multidisciplinary field, even though collaboration ne works show a dialogue pattern which results in clustering around some disciplines (se Figure 5), particularly the natural and agricultural sciences with engineering, as well a single-discipline groups (from the social sciences, but also engineering).Thus, even if th social sciences appear to dominate the field with 49% of the researchers, a large numbe

Analysis of Academic Disciplines
According to the OECD category scheme for R&D [43], the main disciplines participating in academic production on EG/SG in Chile are the following: social sciences (49%), natural sciences (18%), engineering and technology (17%), agricultural and veterinary sciences (13%), and, more marginally, medical and health sciences (2%).This result shows that, overall, EG/SG research is a multidisciplinary field, even though collaboration networks show a dialogue pattern which results in clustering around some disciplines (see Figure 5), particularly the natural and agricultural sciences with engineering, as well as single-discipline groups (from the social sciences, but also engineering).Thus, even if the social sciences appear to dominate the field with 49% of the researchers, a large number thereof are scattered, working either alone or with colleagues from within the social sciences.Disciplinary inbreeding becomes even more apparent if we focus on the citations among researchers within the data set (see Figure 6 based on square matrix of citations).We clearly see disciplinary clusters: social sciences, agricultural sciences and natural sciences clustered around some central actors in disciplinary pools, while engineering is more distributed and peripheral within the network.The collaborations network is not very dense (with a result of 0.012), which indicates little connection between the actors, and the presence of some central (more or less interdisciplinary) groups.
ences.Disciplinary inbreeding becomes even more apparent if we focus on the citation among researchers within the data set (see Figure 6 based on square matrix of citations We clearly see disciplinary clusters: social sciences, agricultural sciences and natural sc ences clustered around some central actors in disciplinary pools, while engineering i more distributed and peripheral within the network.The collaborations network is no very dense (with a result of 0.012), which indicates little connection between the actors and the presence of some central (more or less interdisciplinary) groups  thereof are scattered, working either alone or with colleagues from within the socia ences.Disciplinary inbreeding becomes even more apparent if we focus on the citat among researchers within the data set (see Figure 6 based on square matrix of citatio We clearly see disciplinary clusters: social sciences, agricultural sciences and natura ences clustered around some central actors in disciplinary pools, while engineerin more distributed and peripheral within the network.The collaborations network is very dense (with a result of 0.012), which indicates little connection between the ac and the presence of some central (more or less interdisciplinary) groups

Analysis of Central Research Groups and Authors
To identify central authors, we use both the network of collaborations and the network of citations, each enabling a grasp of a different pattern: first, a collective one (through identifying central actors within core research groups in the collaborations network) and, secondly, an individual one (based on the Indegree score in the citations network).In the collaborations network, 43 authors (10%) write exclusively alone, totaling 88 articles (37% of the article data set).Some of these are central authors in the citations network (i.e., Eduardo Silva, Jessica Budds, David Carruthers, see Table 3).
From the collaborations network: researchers connect through 1000 edges (approximately 2.5 times the number of nodes).The network density is 0.012 and the cluster analysis yielded 77 communities with a modularity index of 0.895.Figure shows that there are many poorly connected communities, one community with over 35 actors, three communities with 20-30 actors, five communities with 10-15 actors, 16 with 5-10 actors, and, finally, 52 communities with less than five actors.The four biggest communities are the following.
Sustainability 2021, 13, x FOR PEER REVIEW Fourth, there is a group mainly from the agricultural sciences (especially neering), from the center-south of Chile, number 4 in Figure 8), which focuse tems restauration, particularly forests.This community gathers researchers fr sidad Austral de Chile (i.e., Pablo Donoso, Cecilia Smith-Ramírez, Jan Bannist sidad de la Frontera (Andrés Fuentes-Ramírez, Rodrigo Vargas Gaete), Uni Concepción (Manuel Acevedo), and Universidad de Talca (Roberto Pizarro an of the Technological Center for Environmental Hydrology); but also from fore sities and institutes such as the Argentine INTA or the University of Arizona of this center-southern group on ecosystems restauration includes governance servation and recovery of natural forests, and more generally the managemen islation around forests.Regarding the centrality of authors (see Table 5, see algo Figure 6), we se  Second, we find the CAPES/CCM group, with the Center of Applied Ecology and Sustainability and the Marine Conservation Center (number 2 in Figure 8).Both centers are focused on the conservation of marine ecosystems, whose membership draws overwhelmingly from the natural sciences, though a certain degree of dialogue exists with the social sciences.The CAPES/CCM group is structured around four core authors (all from the Pontificia Universidad Católica de Chile): Stefan Gelcich, Miriam Fernández, Natalio Godoy and Juan Carlos Castilla, all of whom have framed the topic of aquatic ecosystems from a governance perspective, largely through the analytical lens of the commons (drawing especially on the work of Elinor Ostrom, for example with the case of Territorial Use Rights for Fishing, TURF), but also through a critical analysis of Chilean marine ecosystems governance and contributions to the science-policy interface.
Thirdly, we find the LTER group (Long Term Environmental Research project, number 3 in Figure 8), which is the Southern cone subgroup of the long-term Socio-Ecological Studies program established in the United States during the 1980s to address problems which encompass decadal or longer time frames, and building an international network for the purposes of geographical comparison.In Chile, a group of biologists from the Institute of Ecology and Biodiversity (Ricardo Rozzi, Juan Armesto, Christopher Anderson and Julio Gutiérrez) adopted the LTER framework, focusing on biodiversity and conservation.The researchers in the LTER group are from different universities: Universidad de Chile, Pontificia Universidad Católica de Chile and Universidad Austral de Chile together with foreign universities from the USA (i.e., University of North Carolina, University of North Texas) and from Argentina (i.e., Universidad de Córdoba, Universidad de Buenos Aires), mainly connecting the natural and agricultural sciences.
servation and recovery of natural forests, and more generally the management of and islation around forests.Regarding the centrality of authors (see Table 5, see algo Figure 6), we see that members of core communities are among the main authors (Juan Armesto and An Lara of LTER, Stefan Gelcich of CAPES/CCM), but most of the central actors are s authors, most being renowned foreign academics (such as Carl Bauer, Elinor Ostrom, Carlos Castilla, Eric Swyngedouw, Eduardo Silva, Jessica Budds, or David Harvey) o eign groups (e.g., Stockholm Resilience Center).The main disciplinary group is the s sciences (73%), followed by the natural sciences (20%) and agricultural sciences (7%).Fourth, there is a group mainly from the agricultural sciences (especially forest engineering), from the center-south of Chile, number 4 in Figure 8), which focuses on ecosystems restauration, particularly forests.This community gathers researchers from Universidad Austral de Chile (i.e., Pablo Donoso, Cecilia Smith-Ramírez, Jan Bannister), Universidad de la Frontera (Andrés Fuentes-Ramírez, Rodrigo Vargas Gaete), Universidad de Concepción (Manuel Acevedo), and Universidad de Talca (Roberto Pizarro and members of the Technological Center for Environmental Hydrology); but also from foreign universities and institutes such as the Argentine INTA or the University of Arizona.The work of this center-southern group on ecosystems restauration includes governance of the conservation and recovery of natural forests, and more generally the management of and legislation around forests.
Regarding the centrality of authors (see Table 5, see algo Figure 6), we see that some members of core communities are among the main authors (Juan Armesto and Antonio Lara of LTER, Stefan Gelcich of CAPES/CCM), but most of the central actors are single authors, most being renowned foreign academics (such as Carl Bauer, Elinor Ostrom, Juan Carlos Castilla, Eric Swyngedouw, Eduardo Silva, Jessica Budds, or David Harvey) or foreign groups (e.g., Stockholm Resilience Center).The main disciplinary group is the social sciences (73%), followed by the natural sciences (20%) and agricultural sciences (7%).Here we see how EG/GS issues rely on interdisciplinarity between social and natural sciences.Indeed, if the core communities we revised are populated mainly with researchers from the natural sciences, the citations pattern shows that they do engage in dialogue with the social sciences.Regarding their geographical distribution pattern, the major authors are from Chile (40%), USA (40%) and Europe (20%).In academic production, the references account for the background foundations of any research.Analyzing the references cited allows us to grasp this background and capture the knowledge basis in any given field, as well as the central themes covered.Table 6 shows the 15 most cited references in EG/SG research in Chile, featuring five books, two reports, one piece of law, and seven journal articles (six articles from the data set).Apart from the two reports and the reference to Law 19.300 ("on the general bases of the environment"), all of these references share a critical position towards the clear-cut neoliberal development model adopted by Chile since Pinochet's dictatorship, which reduced environmental policy to the minimum in the name of an "economy-first" formula.We can classify the references into four categories: (a) Water governance, (b) Environmental policies and laws, (c) Sustainable aquaculture and globalization, and (d) Neoliberalism and governance.
Water governance is chiefly represented by the work of Carl Bauer from Arizona University [45][46][47], but also by Jessica Budds from the University of East Anglia [48], as well as by Axel Dourojeanni & Andrei Jouravlev from the ECLAC Division of Natural Resources and Energy [49].These studies focus on water governance in a neoliberal context, framing Chile as a social experiment in terms of its water privatization and market-based governance model.Authors in this category are mainly foreign and see Chile as the "blueprint for the neoliberal model" [46], where water has been commoditized via privatization and water markets, a blueprint based on an idealized theoretical economic model that is not consistent with socio-ecological reality and that conceals power imbalances and multiple conflicts over water.
References related to environmental policies and laws frame issues in a similar vein to those relating to water governance.They portray a neoliberal economic model based on extractive activities and reveal a "disturbing underside to the Chilean miracle" [50], insofar as environmental politics and laws remain hostage to a legal framework inherited from Pinochet's dictatorship and to an economic orthodoxy inimical to sustainability [51,52].Consequently, the type of environmental governance observable in Chile "expresses a strongly market-enabling quality instead of the market-regulating character commonly ascribed to environmental law and policy" [53], which inhibits the emergence of a strong SG, and maintains strong pressures over ecosystems [54], as evidenced in many of the works in our data set of articles.A central article specifically focusing on the political ecology of Chilean salmon aquaculture [55], as a case of non-traditional export-oriented activities, draws a balance between positive and negative effects of the increasing globalization of this sector.Like other central references, Barton & Fløysand adopt a political ecology approach to analyze actors, rationalities, norms, infrastructures, decision-making and power relations in the sector.As mentioned before, salmon aquaculture has grown in importance as a research topic (classified within "aquatic ecosystems" in the topics analysis), especially after the ISA virus crisis in 2007, which strongly affected the salmon culture industry in Chile.Thus it became a central subtopic, with much of the research, (see among others, [56,57]) being similarly conducted from the vantage point of political ecology, and pointing out the weakness of environmental governance in a strong neoliberal context.Finally, there are other central references that are general reports on the state of the environment in Chile [58], and on global climate change [59].There are also some "classical" theoretical references on critical analysis of neoliberalism [60] and governance of the commons [61], which provide theoretical support to the analysis of the dominant economic model (at the macro level) and to the alternative institutional arrangements structured by local actors (at the micro level).
An analysis of the top cited references allowed us to identify the central topics, yielding insights consistent with our deductive analysis (see point 3.1.General statistics of the data set).Yet, at the same time, it conceals the bigger picture of the topics covered in the field, more specifically, of emergent core topics such as climate change and energy.For this reason, we undertook an in-depth analysis of main research themes based on an inductive analysis of keywords' frequency and co-occurrence.

Keywords' Frequency and Co-Occurrence
The function of keywords in academic texts, along with the abstract, is to condense the relevance of the text to a wider audience.Our network analysis of keywords frequency and co-occurrence allowed us to identify topical foci which are central to the entire field of EG/SG in Chile through an inductive approach, helping to refine the deductive analysis developed in Section 3.1.Figure 9 shows the network of relations among keywords, based on the co-occurrence of keywords in the corpus.The size of each node indicates the frequency with which the keywords appear, and the edge between each pair of nodes indicates the co-occurrence between keywords.As expected, given the type of query carried out to account for the academic production on EG/SG in Chile, the keywords "Governance", "Environment", "Sustainability", "Environmental governance" and "Public Policy" appear as the core concepts structuring the field.However, and more unexpectedly, "neoliberalism" also features among the core concepts, insofar a major target of criticism as a mode of environmental governance in Chile (as we see for example with highly cited references analysis); so does "political ecology", in close relation to water-related themes (from water governance in general to salmon aquaculture).Apart from these, we also retrieved the main topics covered by deductive analysis (see Figure 10), with climate change featuring prominently (including adaptation/mitigation and resilience approaches), but also topics such as water, agriculture, and especially energy.Indeed, climate change overlaps with the topic of energy, insofar as clean energy transition strategies appear as a key response to climate change.We also found three main topics directly connected to the central academic communities identified above (see point 3.4.Analysis of central groups and authors): The Long-Term Environmental Research group, Biodiversity Conservation, and the broad topic of Environmental Policies and Laws (present in highly cited references analysis).Besides, we found two new topics: "Environmental Conflicts/Environmental Justice" (strongly associated with environmental policies and laws and directly connected to the issue of broadening participation in environmental governance); and "Knowledge for Environmental Governance" (particularly the "science-policy interface").and authors): The Long-Term Environmental Research group, Biodiversity Conservation, and the broad topic of Environmental Policies and Laws (present in highly cited references analysis).Besides, we found two new topics: "Environmental Conflicts/Environmental Justice" (strongly associated with environmental policies and laws and directly connected to the issue of broadening participation in environmental governance); and "Knowledge for Environmental Governance" (particularly the "science-policy interface").This is an undirected graph generated with the centrality and proximity algorithm Force Atlas 2 [44].The size and color of the nodes varies depending on their degree).

Discussion
As we can see from the data analyzed, the EG/SG research agenda in Chile intertwines topics of the global EG agenda (i.e., climate change, energy, biodiversity) with the particularities emerging from local reality, especially around the Chilean economic matrix (i.e., large-scale mining, fisheries and salmon aquaculture, forests, agriculture) and from local institutions and laws.Indeed, the EG/SG research field has developed in parallel to the consolidation of an environmental institutional and policy framework in Chile, which have served as catalyzer of national public debates around the environment.Examples include the environmental impacts of industrial projects, the (re)design of environmental

Discussion
As we can see from the data analyzed, the EG/SG research agenda in Chile intertwines topics of the global EG agenda climate change, energy, biodiversity) with the particularities emerging from local reality, especially around the Chilean economic matrix (i.e., large-scale mining, fisheries and salmon aquaculture, forests, agriculture) and from local institutions and laws.Indeed, the EG/SG research field has developed in parallel to the consolidation of an environmental institutional and policy framework in Chile, which have served as catalyzer of national public debates around the environment.Examples include the environmental impacts of industrial projects, the (re)design of environmental institutions, but also more specific or issues, such as the ISA virus crisis, air pollution in megacities, and the recent definitions around long-term strategic environmental governance, such as the framework law for waste management, the extended responsibility of the producer, the promotion of recycling, or Chile's energy policy, Energía 2050.
The academic community thus participates in public debates as an actor in environmental governance, albeit less in the role of informing public policies than in that of critically analyzing them with regard to their impact on ecosystems, although in recent years there has been a growing interest in the science-policy interface around EG.In sum, the major research topics are directly connected with the modes of production, impacts on ecosystems, and environmental policy and laws.
Our analysis provides a solid, databased overview of the research field on EG/SG in Chile, including its main knowledge producers and references (both academic communities and single authors).Furthermore, it also provides insight into the field dynamics, e.g., the degree of internationalization of EG/SG research or its patterns of collaboration.This provides clues as to, for example, how exo-or endogamic the field dynamics and groupings are; or if collaborations organize around specific projects, research platforms or institutions, which works as a proxy to infer the weight of third-party funding in shaping research agendas.
As interesting as what the data analysis renders visible, however, is what it reveals as invisible.Regarding the research topoi, as well as disciplinary fault lines, our analysis shows interdisciplinary collaboration between the natural and the social sciences.On closer inspection, however, the field clearly reveals itself as structured around natural science criteria, that is, around particular ecosystems, such as marine or forest, or the climate system; or else around discrete foci on specific economic sectors or resources (water, aquaculture, energy production, etc.).Missing from the picture are cross-cutting socioeconomic and cultural dynamics shaping prevalent yet fundamentally unsustainable ways of life (individualistic, resource-intensive high consumption) or modes of socio-economic organization (production, consumption, distribution, and disposal patterns; trans-territorial socio-ecological metabolism; the growth-dependency of social infrastructures such as pension funds or public health services, and their environmental impact, to mention but a few).A social science framing, in turn, would focus on issues such as historical and contextual complexities, conditions and visions for social-ecological change, and the role of interpretation, sense-making, and identity-building, together with the emerging political and cultural implications [62].This does not necessarily imply that such studies do not exist in Chile, but rather that if they existed, they are not prominently conducted under the header of "environmental" or "sustainability" governance, which is telling in and of itself.
Furthermore, while the critique of neoliberal governance arrangements and institutions is pervasive across the data set, alternative approaches or experimental forms of socio-ecological organization, at least at the meso-and macro-societal level, are notoriously absent.With the exception of Elinor Ostrom's commons governance framework, which features somewhat prominently in the data set (though restricted to the silo of aquatic ecosystems governance), notions of non-or post-capitalist economic organization, work and time regimes or other increasingly controversial political economy topoi such as GDP growth-dependence, income and wealth distribution or transnational resource flows could not be derived from the data.It might be contended that the proposed orientations belong to the realms of political economy, socio-technical studies or even to cultural studies, rather than to that of environmental sustainability.A growing body of literature, however, argues in the opposite sense.
The challenges of achieving much stronger sustainability governance in the sociopolitical sphere are accompanied by the need for scholars to rethink dominant ideas about how to achieve sustainability.Transformative perspectives on sustainability require critical inquiry, which demands that we do not take the current world order as a given and try to find solutions within already established economic, social and political parameters.Rather, we have to inquire into these parameters in order to better understand how this particular world came about and why, and what its material and ideational structures imply for the potential and characteristics of sustainability transformation.In other words, global sustainability governance cannot perform the role of steering human societies towards "environmental and social sustainability" without questioning the broader, deeper causes underlying the major sustainability challenges that we are experiencing and without debating who defines and benefits from the proposed solutions [7].

Conclusions
Based on bibliometric and network analysis, this study reviewed the academic production on EG/SG in Chile from 1993 to 2018, contributing to an understanding of the structuration of EG/SG academic field in Chile.Due to the model role of the country in Latin-American EG/SG, this also provides relevant insight into the regulative ideals of EG/SG research at regional-international scale, providing guidance for future research.The main conclusions are as follows.
First (RQ1a and RQ2), our analysis shows that the academic production on EG/SG in Chile experienced a significant increase since the 1990s, with a high dispersion in international publication platforms (journals), which are, however, largely concentrated in geographical terms: the United Kingdom (25%), Chile (23%), United States (17%) and Netherlands (13%).EG/SG in Chile represents a multidisciplinary field (RQ3c), despite the fact that collaboration networks show a closer dialogue pattern within disciplinary clusters (see Figure 6), particularly between the natural and the agricultural sciences with engineering, as well as single-discipline groups (mainly from the social sciences, but also engineering).
At the collaboration level, we find some core academic communities (RQ2, RQ3a and RQ3b); particularly, four of them are working on climate change (CR2, a strategic academic center producing data for Chile), conservation of marine ecosystems (CAPES/CCM, including the analysis of sustainable use of sea resources and critical analysis of Chilean marine ecosystems governance with some contributions to the science-policy interface), the Southern cone subgroup of the Long-Term Socio-Ecological Studies program (LTER), and, finally, a group from the center-south of the country which focuses on forest restauration.
Regarding core authors (RQ2), some members of above-identified communities take center-stage (i.e., Juan Armesto and Antonio Lara of LTER, Stefan Gelcich of CAPES/CCM) but most of the central figures are single, internationally renowned authors (such as Carl Bauer, Elinor Ostrom, Juan Carlos Castilla, Eric Swyngedouw, Eduardo Silva, Jessica Budds, or David Harvey) or foreign research organizations (such as the Stockholm Resilience Center).
With regard to research topics (RQ1b), there are consistent results between different types of analysis, which enables us to underline some core research topoi: water governance (including water markets, water rights, but also an important political ecology approach to water, for example regarding salmon aquaculture and hydro-energy); environmental policies and laws (i.e., the political and juridical mainstreaming of environmental issues in Chile and its problematic embeddedness in a neoliberal economic model); climate change, which overlaps with energy and biodiversity conservation; as well as research on environmental conflicts and justice (including the central issue of stakeholder participation in environmental governance).
However, our analysis also reveals a significant bias in the conceptual framing of governance for social-ecological sustainability, in that "environmental governance" is defined in terms of discrete ecosystems, resources, or economic sectors or projects, while the key

Sustainability 2021 ,
13,  x FOR PEER REVIEW 6 of important topic throughout the period, reinforced further since the end of the 2000s co ciding with the reform of environmental institutions and legislation in Chile, as per L 20.417.In this topic, the focus is explicitly on the configuration of forms of environmen governance at a general level (including mechanisms of transparency, participation, countability, precaution, etc.) in the Chilean political context and their limits vis-à-vis S The articles in this topical category adopt a very critical perspective regarding the g between formal arrangements and actual impact in a highly centralized country with primarily technocratic environmental policy[34] that responds to exogenous deman and standards for EG, among others from the UN and OECD[35,36] (See more deta below in point 3.5.Main Research themes, which underlines the relative importance this topic in the total data set).Biodiversity is also present from the beginning (Chile ha ing signed and ratified the Convention on Biological Diversity in 1994) and shows a risi curve, its importance, however, decreasing with respect to other topics (see FigureAquaticecosystems and the issue of water have also remained central since the 199 exhibiting a sustained increase.The topic of forests has been present to a lesser exte since the beginning of the debates on EG in Chile and continues until the 2010s.T emerging topics of energy and climate change have gained traction in the last decade (a hough climate change has been present more marginally since the 1990s).This is co sistent with the growing global concern with climate governance (mitigation and adap tion)[37,38] and, at the national level, with the inclusion of climate change as a strate axis within the Ministry of the Environment.The topic of energy goes hand in hand w that of climate change, with a focus on renewable energy and energy transition.Final some topics have been relegated in importance since the 2000s: sustainable tourism, quality, sustainable cities, mining, waste, and risk management.

Figure 4 .
Figure 4. Network of journals based on citations database (Network built based on paper-to-pape citations, considering the journal of publication.This is a directed graph generated with the centra ity and proximity algorithm Fruchterman-Reingold [42].The size and color of the nodes varies ac cording to Indegree (number of citations received)).

Figure 4 .
Figure 4. Network of journals based on citations database (Network built based on paper-to-paper citations, considering the journal of publication.This is a directed graph generated with the centrality and proximity algorithm Fruchterman-Reingold [42].The size and color of the nodes varies according to Indegree (number of citations received)).

Figure 5 .
Figure 5. Collaborations Network by discipline (Network built on the basis of co-authorship of th articles in the data set.This is an undirected graph generated with the centrality and proximit algorithm Fruchterman-Reingold[42].The size of the nodes varies according to their degree an each color represents an academic discipline).

Figure 5 .
Figure 5. Collaborations Network by discipline (Network built on the basis of co-authorship of the articles in the data set.This is an undirected graph generated with the centrality and proximity algorithm Fruchterman-Reingold[42].The size of the nodes varies according to their degree and each color represents an academic discipline).

Figure 5 .
Figure 5. Collaborations Network by discipline (Network built on the basis of co-authorship o articles in the data set.This is an undirected graph generated with the centrality and proxi algorithm Fruchterman-Reingold [42].The size of the nodes varies according to their degree each color represents an academic discipline).

Figure 6 .
Figure 6.Square citations Network by disciplines (Network based on citations from articles to authors, both from within the data set.This is a directed graph generated with the centrality and proximity algorithm Force Atlas 2 [44].Size and color of the nodes is analogous to the previous networks showcased).

Figure 8 .
Figure 8. Collaborations Network by clusters.Number 1: Climate and Resilience Scien Number 2: CAPES/CCM group, with the Center of Applied Ecology and Sustainabilit Marine; Number 3: Conservation Center.LTER group (Long Term Environmental Res ject); Number 4: the center-south of Chile.

First
is the Climate and Resilience Science Center or (CR)2 group (number 1 in Figure 8), a multidisciplinary and cross-universities group working around climate change, with five core authors in the EG/SG field: Gustavo Blanco Wells (Universidad Austral de Chile), Laura Nahuehual (Universidad Austral de Chile), Paulina Aldunce (Universidad de Chile) Raúl O'Ryan (Universidad Adolfo Ibañez) and Rodrigo Arriagada (Pontificia Universidad Católica de Chile, also director of the Center for the Socioeconomic Impact of Environmental Policies).The (CR) 2 was created in 2013, funded by the Fund for Financing Research Centers in Priority Areas (Fondap) of the National Commission for Scientific and Technological Research (formerly Conicyt, now ANID, Chile).The (CR)2 develops resilience and climate science in Chile, thus contributing to the country's goal of achieving low-carbon development, but also supporting adaptation and mitigation measures to build a society more resilient in the face of inevitable climate change.

Figure 8 .
Figure 8. Collaborations Network by clusters.Number 1: Climate and Resilience Science Cen Number 2: CAPES/CCM group, with the Center of Applied Ecology and Sustainability and th Marine; Number 3: Conservation Center.LTER group (Long Term Environmental Research p ject); Number 4: the center-south of Chile.

Figure 8 .
Figure 8. Collaborations Network by clusters.Number 1: Climate and Resilience Science Center; Number 2: CAPES/CCM group, with the Center of Applied Ecology and Sustainability and the Marine; Number 3: Conservation Center.LTER group (Long Term Environmental Research project); Number 4: the center-south of Chile.

Figure 9 .
Figure 9. Keywords co-occurrences.(Network built on the basis of co-occurrence of keywords in texts from the data set.This is an undirected graph generated with the centrality and proximity algorithm Force Atlas 2[44].The size and color of the nodes varies depending on their degree).

Figure 9 . 21 Figure 10 .
Figure 9. Keywords co-occurrences.(Network built on the basis of co-occurrence of keywords in texts from the data set.This is an undirected graph generated with the centrality and proximity algorithm Force Atlas 2[44].The size and color of the nodes varies depending on their degree).Sustainability 2021, 13, x FOR PEER REVIEW 16 of 21

Table 3 .
Top 10 journals of published articles.

Table 3 .
Top 10 journals of published articles.

Table 4 .
Top 10 journals of cited articles (by weighted Indegree).