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Search Results (10)

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Authors = Katerina Melfou ORCID = 0000-0002-6701-9705

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15 pages, 847 KiB  
Article
Structural Analysis of Farming Systems in Western Macedonia: A Cluster-Based Approach
by Theodoros Siogkas, Katerina Melfou, Georgia Koutouzidou, Efstratios Loizou and Athanasios Ragkos
Agriculture 2025, 15(15), 1650; https://doi.org/10.3390/agriculture15151650 - 31 Jul 2025
Viewed by 201
Abstract
This paper examines the farming systems and operational structures in the Region of Western Macedonia (RWM), Greece and constructs a typology of farms based on structural, operational, and socio-economic characteristics. Agriculture remains a vital pillar of the regional economy, particularly in the context [...] Read more.
This paper examines the farming systems and operational structures in the Region of Western Macedonia (RWM), Greece and constructs a typology of farms based on structural, operational, and socio-economic characteristics. Agriculture remains a vital pillar of the regional economy, particularly in the context of RWM’s ongoing transition to a post-lignite development model. Using farm-level data from the 2018 Farm Accountancy Data Network (FADN), Principal Component Analysis (PCA) identified four latent dimensions of farm heterogeneity—income and productivity, asset base, land size, and labour structure. Hierarchical and K-means cluster analysis revealed three distinct farm types: (1) medium-sized, high-efficiency farms with moderate reliance on subsidies (30% of the sample); (2) small-scale, family farms with modest productivity and limited capitalisation (48%); and (3) large, asset-rich farms exhibiting structural inefficiencies and lower output per hectare (22%). These findings highlight structural vulnerabilities, particularly the predominance of undercapitalised smallholdings, and provide a data-driven foundation for Thdesigning differentiated policies that support farm resilience, generational renewal, and sustainable rural development. Full article
(This article belongs to the Section Agricultural Economics, Policies and Rural Management)
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24 pages, 1725 KiB  
Article
Integration of Technology in Agricultural Practices towards Agricultural Sustainability: A Case Study of Greece
by Dimitrios Kalfas, Stavros Kalogiannidis, Olympia Papaevangelou, Katerina Melfou and Fotios Chatzitheodoridis
Sustainability 2024, 16(7), 2664; https://doi.org/10.3390/su16072664 - 24 Mar 2024
Cited by 23 | Viewed by 7808
Abstract
Agricultural technology integration has become a key strategy for attaining agricultural sustainability. This study examined the integration of technology in agricultural practices towards agricultural sustainability, using Greece as a case study. Data were collected using a questionnaire from 240 farmers and agriculturalists in [...] Read more.
Agricultural technology integration has become a key strategy for attaining agricultural sustainability. This study examined the integration of technology in agricultural practices towards agricultural sustainability, using Greece as a case study. Data were collected using a questionnaire from 240 farmers and agriculturalists in Greece. The results showed a significant positive effect of technology integration on agricultural sustainability, with p-values indicating strong statistical relevance (types of technology used: p = 0.003; factors influencing technology adoption: p = 0.001; benefits of technology integration: p = 0.021). These results highlight the significant effects that cutting-edge technology like artificial intelligence, Internet of Things (IoT), and precision agriculture have on improving resource efficiency, lowering environmental effects, and raising agricultural yields. Our findings cast doubt on the conventional dependence on intensive, resource-depleting farming techniques and point to a move toward more technologically advanced, sustainable approaches. This research advances the conversation on sustainable agricultural practices by showcasing how well technology integration may improve sustainability results in Greek agriculture. The study emphasizes the significance of infrastructure investment, supporting legislation, and farmer education in order to facilitate the adoption of agricultural technology. Full article
(This article belongs to the Section Sustainable Agriculture)
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3 pages, 149 KiB  
Proceeding Paper
Using Pollen DNA Metabarcoding to Assess the Foraging Preferences of Honeybees in Kastoria Region, Greece
by Maria V. Alvanou, Maria Tokamani, Athanasios Toros, Raphael Sandaltzopoulos, Konstantinos Zampakas, Chrysoula Tananaki, Katerina Melfou and Ioannis A. Giantsis
Proceedings 2024, 94(1), 44; https://doi.org/10.3390/proceedings2024094044 - 2 Feb 2024
Viewed by 911
Abstract
Identification of a plant’s pollen components can be used to establish its geographical provenance, while also providing insights into the diet and foraging preferences of the honeybee (Apis mellifera L.). The diversity and amount of pollen represent crucial factors for pollinators. Here, [...] Read more.
Identification of a plant’s pollen components can be used to establish its geographical provenance, while also providing insights into the diet and foraging preferences of the honeybee (Apis mellifera L.). The diversity and amount of pollen represent crucial factors for pollinators. Here, we identified plant species visited by honeybees by analyzing the pollen pellets collected from honeybees in Kastoria, Greece. The results indicate that pollen from different periods was identified by means of floral composition. An interesting observation is that all identified plants belonged to different genera. Among the identified plants, native ones, such as the Macedonian pine, Pinus peuce, present a distinct foraging profile for local honeybees. Full article
3 pages, 374 KiB  
Proceeding Paper
Consumers’ Trust and Preferences Regarding Local Plant Varieties and Indigenous Farm Animal Breeds in Western Macedonia, Greece
by Dimitrios Kyriazoglou, Vasiliki Makri, Martha Tampaki, Katerina Melfou, Athanasios Ragkos and Ioannis A. Giantsis
Proceedings 2024, 94(1), 22; https://doi.org/10.3390/proceedings2024094022 - 23 Jan 2024
Cited by 1 | Viewed by 791
Abstract
The value of rearing indigenous animal breeds and cultivating local plant varieties is extremely high in terms of regional economy and heritage preservation. The purpose of the present research was to investigate the preferences and opinions of consumers in Western Macedonia regarding local [...] Read more.
The value of rearing indigenous animal breeds and cultivating local plant varieties is extremely high in terms of regional economy and heritage preservation. The purpose of the present research was to investigate the preferences and opinions of consumers in Western Macedonia regarding local varieties and indigenous breeds. For this purpose, an appropriate questionnaire was designed and distributed to a sample of 80 consumers from Western Macedonia. The questions combined the demographic, psychographic and institutional characteristics of consumers. According to our findings, most participants recognize the importance of the conservation of indigenous animal breeds and local plant varieties as well as the products derived from them. Additionally, a large percentage showed a preference for these products for the purpose of supporting the local economy. Nevertheless, particularly for indigenous animal breeds, despite the recognition of their high value and need for conservation, only a small proportion of the participants could name some of the indigenous breeds correctly. Conversely, this was not observed concerning local plant varieties, of which participants were more aware. Thus, better promotion and overall better marketing could enhance the recognition of these resources, emphasizing their high value. Full article
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21 pages, 4570 KiB  
Article
Exploring Key Aspects of an Integrated Sustainable Urban Development Strategy in Greece: The Case of Thessaloniki City
by Fotios Chatzitheodoridis, Katerina Melfou, Achilleas Kontogeorgos and Stavros Kalogiannidis
Smart Cities 2023, 6(1), 19-39; https://doi.org/10.3390/smartcities6010002 - 21 Dec 2022
Cited by 22 | Viewed by 5110
Abstract
Even though efforts have been made in recent decades to revive urban areas in the European Union (EU), the contemporary challenges that mostly large cities face require continuous support and adjustments in urban policies. Under the EU Cohesion Policy for the 2014–2020 programming [...] Read more.
Even though efforts have been made in recent decades to revive urban areas in the European Union (EU), the contemporary challenges that mostly large cities face require continuous support and adjustments in urban policies. Under the EU Cohesion Policy for the 2014–2020 programming period, the integrated territorial development of various specific areas is pursued by the Integrated Territorial Investments (ITI). In Greece, many of these programs concern Integrated Sustainable Urban Development Strategies (ISUDSs). One of these is the ISUDS of Thessaloniki, which is perhaps the most complex in terms of management and implementation in Greece, mainly due to the chosen managerial approach and the size of Thessaloniki, the second largest city in the country. Thessaloniki’s ISUDS is managed by the Urban Authority (UA), which has already evolved into a separate model of metropolitan governance administration. The aim of this paper is to identify the determinants in its design and implementation, as well as the effects of the strategy on urban development through the assessment of its strengths and weaknesses, as well as the opportunities and prospects of strategy through the Delphi approach. Full article
(This article belongs to the Special Issue Current Trends and Future Prospects on Smart and Sustainable Cities)
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8 pages, 911 KiB  
Proceeding Paper
Comparison of Approaches for Determining Grazing Capacity in Forest Rangelands: The Case of Pisoderion Forest Florina-Greece
by Katerina Melfou, Dimitrios Kalfas, Fotios Chatzitheodoridis, Stavros Kalogiannidis, Efstratios Loizou and Ermelinda Toska
Environ. Sci. Proc. 2022, 22(1), 68; https://doi.org/10.3390/IECF2022-13055 - 15 Oct 2022
Viewed by 1125
Abstract
False-alpine grasslands, also known as summer grasslands or rangelands, are mainly associated with transhumance. In the past, transhumance and grazing were organized on a mainly family basis, and there existed an informal management system for grazing that was respected by all livestock farmers [...] Read more.
False-alpine grasslands, also known as summer grasslands or rangelands, are mainly associated with transhumance. In the past, transhumance and grazing were organized on a mainly family basis, and there existed an informal management system for grazing that was respected by all livestock farmers who used the summer pastures. Nomadic animal husbandry has disappeared, and with it a sense of respect for nature, the rangelands, and more generally, the environment. The aim of this paper is to assess the grazing capacity of rangelands in the Pisoderion Forest, which is located in the region of Florina in Greece, under various specifications introduced by forest management plans and relatively recent legislation. The grazing capacity that is theoretically expected following the specifications of previous forest management plans is compared to the grazing capacity according to the specifications introduced by relatively recent legislation. The conclusion that can be drawn is that the rangelands are underused, and with an appropriate holistic management approach, such as the traditional system of dividing the forest grasslands into yards, the livestock capital can be doubled in these rangelands. Full article
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12 pages, 268 KiB  
Article
Evolution of the Structure and Economic Management of the Dairy Cow Sector
by Georgia Koutouzidou, Athanasios Ragkos and Katerina Melfou
Sustainability 2022, 14(18), 11602; https://doi.org/10.3390/su141811602 - 15 Sep 2022
Cited by 10 | Viewed by 3298
Abstract
In this paper, we examine the changes in the structural, economic and managerial characteristics of dairy cow farms during their shift towards a new business model that operates under a highly intensified system. Based on farm accounting data from Greek dairy farms for [...] Read more.
In this paper, we examine the changes in the structural, economic and managerial characteristics of dairy cow farms during their shift towards a new business model that operates under a highly intensified system. Based on farm accounting data from Greek dairy farms for the 2004–2017 period, the main technical and financial indicators are estimated and compared to provide a clear picture of the structural adjustment of the dairy cow sector during the last two decades. The outcomes and the implications described herein are relevant for specialized dairy farms in most European countries. The results indicate that modern farms breed a larger number of cows, achieve a higher milk yield, rely on high compound feed intakes and operate under an intensive pattern. This trend is even more evident in larger farms with an entrepreneurial nature, whose structural adjustments occurred in a more concise and effective manner. The latter benefited from a downward shift in their long-term average cost curves and the resulting economies of scale, achieving reasonable gross margins despite the ever-increasing feeding costs. Nowadays, the European dairy cow sector faces major economic, social and environmental challenges that must be properly addressed to secure its survival. The findings of this study provide insights concerning the efficient financial management of dairy farms that can support the development of strategies and policy recommendations that will enhance the resilience and sustainability of the sector. Full article
(This article belongs to the Collection Sustainable Livestock Production and Management)
16 pages, 1061 KiB  
Review
Eco-Value and Public Perceptions for Indigenous Farm Animal Breeds and Local Plant Varieties, Focusing on Greece
by Martha Tampaki, Georgia Koutouzidou, Athanasios Ragkos, Katerina Melfou and Ioannis A. Giantsis
Sustainability 2022, 14(18), 11211; https://doi.org/10.3390/su141811211 - 7 Sep 2022
Cited by 7 | Viewed by 2378
Abstract
The present study aims to review the literature on the functioning of short value chains and public perceptions regarding indigenous farm animal breeds (IFABs), local plant varieties (LPVs), and their products. Our work mainly concerns Greece, providing additional concrete examples from the wider [...] Read more.
The present study aims to review the literature on the functioning of short value chains and public perceptions regarding indigenous farm animal breeds (IFABs), local plant varieties (LPVs), and their products. Our work mainly concerns Greece, providing additional concrete examples from the wider Balkan area, which is characterized by high agrobiodiversity and richness in various IFAB and LPV, enhanced by the extensive farming systems that still operate in many parts of the area. To achieve this goal, a systematic literature search of recent relevant studies was performed, followed by a description of their results and conclusions, as well as proposed measures and policies for the conservation and utilization of biodiversity in agricultural and livestock systems. According to our findings, the Balkan region is characterized by a great wealth of local plant varieties and indigenous breeds of farm animals, which is largely recognized by consumers, who would, however, recommend stronger eco-labeling of local agricultural products. Similar data are observed in Greece, which are reinforced by the Mediterranean climatic environment. NGO organizations occasionally play an important role in promoting local agricultural products and creating awareness about the need to preserve local breeds and plant varieties. Finally, the recognition, certification, and measurements carried out by local authorities, as well as EU regulations, are of great importance in highlighting the value of agrobiodiversity from a sustainable point of view. Full article
(This article belongs to the Collection Sustainable Livestock Production and Management)
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21 pages, 1377 KiB  
Article
Willingness to Pay for Urban and Suburban Green
by Dimitrios Kalfas, Fotios Chatzitheodoridis, Efstratios Loizou and Katerina Melfou
Sustainability 2022, 14(4), 2332; https://doi.org/10.3390/su14042332 - 18 Feb 2022
Cited by 42 | Viewed by 6095
Abstract
Peri-urban and urban green are considered among the basic priorities of the local government’s regional policy agenda, in line with the principles of spatial planning. This agenda is promoted at both the national and European levels through a variety of technical and institutional [...] Read more.
Peri-urban and urban green are considered among the basic priorities of the local government’s regional policy agenda, in line with the principles of spatial planning. This agenda is promoted at both the national and European levels through a variety of technical and institutional measures. Green spaces in urban and suburban areas are directly linked to the quality of life of urban residents and their environment. In this context, the purpose of this study is to investigate and identify the characteristics and factors that influence the residents of a small Greek city in terms of the value they attach to urban and suburban green spaces. These factors are identified through the residents’ willingness to pay (WTP) using the contingent valuation method (CVM). In general, the analysis aims to document the value of environmental economic methods as a tool in the management of natural heritage. According to the research, income and knowledge of environmental issues (global and local) as well as the benefits of green spaces (urban and suburban) are the key factors that drive residents to place a higher value on them. Future work may explore whether or how the COVID-19 pandemic affected city residents’ willingness to pay for green spaces. Full article
(This article belongs to the Special Issue Sustainable Urban Surfaces)
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15 pages, 1954 KiB  
Review
The Knowledge Based Agricultural Bioeconomy: A Bibliometric Network Analysis
by Christina-Ioanna Papadopoulou, Efstratios Loizou, Katerina Melfou and Fotios Chatzitheodoridis
Energies 2021, 14(20), 6823; https://doi.org/10.3390/en14206823 - 19 Oct 2021
Cited by 30 | Viewed by 3489
Abstract
The last ten years have witnessed an increase in publications focusing on bioeconomy as a proposal to confront the global challenges of climate change, depletion of non-renewable resources and ecosystem degradation. This paper investigates the scientific literature on issues related agricultural bioeconomy by [...] Read more.
The last ten years have witnessed an increase in publications focusing on bioeconomy as a proposal to confront the global challenges of climate change, depletion of non-renewable resources and ecosystem degradation. This paper investigates the scientific literature on issues related agricultural bioeconomy by applying a bibliometric network analysis. Bibliometric analysis is applied to the publications of the Scopus database during the period 2010–2020 in order to provide an overview of the main aspects that characterize agricultural bioeconomy. The results showed that out of a total of 1100 scientific papers, only 2.45% were published in 2010, while the corresponding share in 2020 was 20.81%. In the five years of 2016–2020, cumulatively, 70.63% of the publications were made, showing the dynamic evolution of bioeconomy. In addition, out of 85 countries in total, Germany and Italy are the two countries with most publications, while the fragmentation of research is evident with the creation of two main nodes, the European and the American. Moreover, keyword analysis showed that biomass and sustainability are two main recurring concepts, confirming that, currently, bioeconomy operates at three different levels: energy demand, land demand, and governance. It is apparent that to boost the development of agricultural bioeconomy, the following aspects should be assessed: the effective use of resources, an understanding of the key drivers of agricultural bioeconomy, and a clear perception of their associations. There is still no consensus as to which are the key factors that will accelerate its sustainable development. Our pursuit is to use the tools of bibliometric analysis to reach more critical conclusions regarding the agricultural bioeconomy, rather than approach it in a static way. Full article
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