Search Results (83)

Urbanisation and land-use change are among the main pressures on soil health in periurban areas, but the multifunctionality of grassland soils is still not sufficiently recognised. In this study, the physical and chemical properties of soils under grassland, forest and croplands in the periurban area of Zagreb were investigated in a two-year period. Grasslands consistently exhibited multifunctional benefits, including high organic matter content (4.68% vs. 2.24% in cropland), improved bulk density (1.14 vs. 1.24 g cm⁻³) and an active carbon cycle indicated by increased CO₂ emissions (up to 1403 kg ha⁻¹ day⁻¹ in 2021). Forest soils showed the highest aggregate stability (91.4%) and infiltration (0.0006 cm s⁻¹), while croplands showed signs of structural degradation with the highest bulk density and lowest water retention (39.9%). Temporal variation showed that grassland was particularly responsive to favourable climatic conditions, with soil porosity and water content improving yearly. Principal component analysis showed that soil structure, biological activity and moisture regulation were linked, with grassland plots favourably positioned along the axes of resilience. The absence of tillage and the presence of permanent vegetation cover contributed to their high capacity for climate and water regulation and carbon sequestration. These results emphasise the importance of protecting and managing grasslands as an important component of urban green areas. Practices such as mulching, minimal disturbance and continuous cover can maximise the ecosystem services of grassland soils. In addition, the results highlight the potential risk of trace metal accumulation in cropland and grassland soils located near urban and farming infrastructure, underlining the need for regular monitoring in periurban environments. Integrating grassland functions into urban planning and policy is essential for improving the sustainability and resilience of periurban landscapes. Full article

This study investigated the effects of land-use change and wetland restoration on soil microbial community diversity, structure, and function in a cold-region wetland ecosystem. Soil samples from six land-use types were analyzed for key physicochemical and biochemical properties, including soil water content, pH, total nitrogen, soil organic carbon (SOC), and enzymatic activities. Significant differences in carbon and nitrogen availability were observed, with restored wetland soils showing higher SOC and moisture levels, while agricultural soils exhibited elevated nitrate concentrations. Bacterial community composition was estimated based on 16S ribosomal RNA gene sequencing, and microbial functional profiles were predicted using Functional Annotation of Prokaryotic Taxa (FAPROTAX) and BugBase. Bacterial communities were dominated by Proteobacteria, Actinobacteriota, and Acidobacteriota, with significant shifts among land-use types. Redundancy analysis revealed that SOC, SWC, total nitrogen (TN), and pH were key drivers of community differentiation. Functional prediction showed enrichment of fermentation and anaerobic metabolism in restored wetlands, while aerobic carbon metabolism dominated in agricultural and forest soils. These findings demonstrate that wetland restoration improves both taxonomic and functional diversity. While ecosystem multifunctionality and resilience were not directly quantified, the observed increases in microbial richness, functional group diversity, and enzymatic activity suggest enhanced ecological capacity and potential for system stability in cold-region wetlands. Full article

Multi-functionality and high mission adaptability are important trends in the development of future aircrafts. Trans-domain aircraft, with their unique take-off and landing capabilities and cross-medium capability, have significant potential in the field of emergency rescue, marine monitoring and tourism. Trans-domain aircraft will meet various flight conditions in different domains. Therefore, the design of wing structures must consider the mechanical effects of different media on the aircraft. In the current study, a fishbone variable camber wing is proposed based on the concept of a camber morphing wing. The relationship between the actuation force and the trailing edge deflection is analyzed using the fluid–structure interaction. The flight performance of the flight conditions including cruise or climb underneath and cruise above the water can also be evaluated in the design iteration since the load-carrying capability can be satisfied and the structural deformation of the fluid loads and the actuators is taken into account. Finite element analysis is also employed for the structural verification. Finally, a structural model is manufactured, which is tested above and under water by measuring the trailing edge deflection using the digital image correlation technology. Full article

The rapid pace of urbanization is contributing to ecological degradation and poses a threat to regional ecological security. Addressing these issues requires effective strategies to mitigate existing environmental challenges. Ecological networks, as the spatial foundation for ecosystem services, play a critical role in reducing environmental degradation. By reconfiguring the spatial relationship between human activities and natural ecosystems, anthropogenic pressures on land can be alleviated. However, most current research focuses on administrative boundaries, which limits spatial continuity and regional coordination. Therefore, constructing ecological networks from a cross-regional perspective is essential for integrated ecological management. This study uses the Yangtze River Delta Ecological Green Integration Demonstration Area as a case study. We construct a blue–green ecological network by applying ecological footprint analysis, Morphological Spatial Pattern Analysis (MSPA), landscape connectivity assessments, the Minimum Cumulative Resistance (MCR) model, and gravity modeling. Practical strategies for integrating the ecological network into territorial spatial planning are also explored. The key findings are as follows: (1) The demonstration area contains 33 ecological source areas, including 20 primary sources located near administrative boundaries and central lakeshore wetlands. A total of 333 ecological corridors were identified. First-grade corridors are primarily located in rural areas, traversing agricultural land and water bodies. (2) We recommend corridor widths of 200 m for first-grade corridors, 60 m for second-grade corridors, and 30 m for third-grade corridors. These widths are based on species characteristics and land use types, and are found to be conducive to species migration and habitat connectivity. (3) We propose the development of tourism landscape zones from a cross-regional perspective, leveraging existing ecological and cultural resources. The multifunctionality of corridors is redefined through the integration of ecological and social values, enhancing their spatial implementation. This framework provides a practical reference for constructing cross-regional blue–green ecological networks and informs spatial planning efforts in other multi-jurisdictional areas. Full article

Cultivated land (CL), as the foundation of agricultural production, possesses multifunctionality, and its utilization mode directly influences the agricultural modernization process. This study systematically analyzed the coupled and coordinated development characteristics and driving mechanisms of cultivated land multifunction (CLM) and agricultural mechanization (AM) using data from 31 Chinese provinces between 2011 and 2021, aiming to reveal the complexity of regional agricultural modernization and provide scientific evidence for differentiated agricultural development strategies. Key research findings: (1) From 2011 to 2021, the levels of CLM utilization, AM development index, and their coupling coordination consistently increased, but regional development disparities were prominent. The CLM level in western regions was significantly lower than in eastern and central regions, with regional differences in AM development gradually expanding. (2) Driving factors of coupled and coordinated development varied significantly across regions: eastern regions were primarily driven by technological innovation, central regions were influenced by production efficiency and social security, and western regions were mainly constrained by ecological functions. (3) Natural conditions such as cultivated land area, quality, and land flatness significantly impact the coordinated development of AM and CLM. This study innovatively constructed an evaluation index system for CLM and AM coupling coordination, integrating socio-economic and remote sensing data. By employing entropy weight TOPSIS and coupling coordination models, it conducted an in-depth analysis of long-term temporal changes and revealed the internal mechanisms of regional coordinated development through spatial econometric methods. The research results not only provide theoretical support for regional agricultural modernization but also offer scientific references for formulating differentiated agricultural development policies, promoting synergistic development of agricultural modernization and ecological civilization construction, and exploring more precise and sustainable regional agricultural development paths. Full article

Rural industrial integration land has emerged with the rise of new industries in rural China, exhibiting spatial distribution patterns distinct from traditional industrial land. However, research on this land use remains limited. This paper offers an exploratory definition of rural industrial integration land, takes three typical villages in Qingdao, Shandong Province as examples, establishes a model for measuring the diversity, complexity, and compatibility of land for industrial integration development based on the Hill numbers diversity measurement model, the information entropy index, and the mixedness index (WVMDI_i) to explore the spatial layout characteristics of rural industrial integration land, and introduces the grey relational model to analyze its driving mechanism. The findings reveal that: (1) Rural industrial integration land is marked by structural diversity, multifunctionality, and compatibility in use. (2) From 2015 to 2023, the land’s diversity, complexity, and compatibility increased. The spatial layout characteristics of rural industrial integration land in the three villages, which integrates its diversity, complexity, and compatibility, increased from 1.3842, 1.5786, and 1.2127 to 1.8500, 1.9123, and 2.0224. (3) Between 2015 and 2019, key factors influencing spatial distribution included resource endowment, industrial foundation, and socioeconomic conditions. From 2019 to 2023, the most significant factors shifted to industrial foundation, farmers’ demand, and regional policies. Understanding the spatial distribution of rural industrial integration land is essential for guiding rural industrial spatial planning and promoting rural industrial revitalization. Full article

Urbanization-driven land use and cover change intensifies the competition for limited land resources, exacerbating spatial conflicts and challenging sustainable development, particularly in rapidly urbanizing regions. This study focuses on the delineation and coordination of territorial space functional zones, addressing conflicts arising from rapid urbanization and the multifunctionality of land resources. By integrating land suitability evaluation, spatial simulation, and spatial overlay analysis, this paper delineates three functional zones and three types of conflicts for 2035: a farmland protection zone, an ecological protection zone, and an urban development zone, and construction–farmland conflicts, construction–ecological conflicts, and farmland–ecological conflicts. A suboptimal equilibrium boundary is proposed to resolve conflicts by balancing the economic output price and the ecological service price of agricultural land against construction land prices. The results show that the optimized urban construction land (632.50 km²) is significantly smaller than that resulting from the planned 1.3-fold expansion, indicating that the original coefficient is unreasonable. Post-coordination, FPZ, and EPZ areas were adjusted to 1136.72 km² and 295.15 km², respectively, prioritizing food security and ecological conservation. The findings highlight the need for collaborative urban planning to mitigate spatial conflicts and manage the compounded effects of urbanization and land resource competition. This paper provides a quantitative framework for resolving space conflicts, offering insights for sustainable territorial planning and management. Full article

Rural settlement is the main vehicle for the existence and development of the countryside. The functions of rural settlements vary across different regions, influencing land use patterns. This study conducted multi-function evaluations of rural settlements by selecting three representative villages from different locations in Hebei Province, China. This was achieved through the establishment of an evaluation indicator system and the adoption of methods such as coordination degree, dominance degree, and obstacle factor diagnosis. This paper also used the Markov and CLUE-S models to predict future changes in land use within these settlements. The results showed that the closer the relationship between rural settlements and towns, the more obvious the settlement’s overall function becomes. Suburban settlements showed the highest multi-function coordination degree, with a prominent living function, but lagged in production and ecological functions. These villages should prioritize areas for commercial, landscape, and greening land to better serve the urban areas. Exurban villages excel in production but fall short in ecological and residential aspects. These areas should allocate land for environmental and infrastructure development to support a larger peasant population. Remote villages showed good multi-functionality, with a strong focus on eco-friendliness. However, they lacked in production and living function. Future plans should include converting residential areas to commercial use and enhancing public services and infrastructure to raise the living standards of villagers. Full article

Natural restoration has emerged as a prominent approach in recent decades for the rehabilitation of degraded ecosystems globally. However, the specific changes and underlying mechanisms by natural restoration that influence the multifunctionality of karst ecosystems remain poorly understood. In this study, soil, litter, and fine root samples were collected from four chronosequence stages of vegetation restoration—grassland (G), shrubland (SH), shrub-tree land (ST), and forest (F)—within a karst ecosystem in Southwestern China. The aim was to evaluate the impacts of vegetation restoration on ecosystem multifunctionality using an averaging approach. The results demonstrated that the indices of C-cycling functionality, N-cycling functionality, P-cycling functionality, and total ecosystem multifunctionality increased as vegetation restoration progressed, along with plant diversity. The structure of plant, bacterial, and fungal communities varied across different stages of vegetation restoration, exhibiting the highest microbial diversity indices in the SH stage. Additionally, the tightness and complexity of co-occurrence networks of bacteria and fungi increased with advancing vegetation restoration, and higher positive links were observed in fungi than bacteria. The four functional indices were significantly and positively correlated with increasing plant diversity, fine root and litter nutrient contents, fine root biomass, microbial biomass, fungal community, enzyme activities, and soil nutrient contents but not with bacterial and fungal diversities. Furthermore, Random Forest model results revealed that plants exerted a significantly greater influence on ecosystem multifunctionality compared to other factors. It is plausible that plants influence soil microbial biomass, fungal community and co-occurrence networks, enzyme activities, and nutrient levels through the input of root and litter nutrients rather than by altering microbial diversity to enhance karst ecosystem multifunctionality. Therefore, initiatives to increase plant diversity are beneficial for sustainable ecological restoration management in the karst regions of Southwestern China. Full article

In recent years, particularly in 2024, there has been an escalation in the frequency and intensity of megafires in the state of São Paulo, Brazil. This state, the most industrialized in the country, has seen extensive land-use changes in recent decades, with agriculture extending upon areas previously dedicated to other uses and forests. The practice of family farming, which is distinguished by its smaller operational areas and the majority involvement of the family that owns the land, has the potential to influence the occurrence of fires, but few studies have explored the link between agricultural practices (especially the difference between family and other farming types) and fire intensity. This study aims to assess whether the higher presence of family-farming establishments in different municipalities reduces fire incidents. The results indicate that the municipalities with the highest presence of family farming present lower percentages of burned areas. The increased diversity in crop types and the presence of forest cover within these municipalities have been identified as contributing factors to this reduced fire rate and burned areas. These findings underscore the need for public policies that support family farming as a strategy to reduce fires and protect vulnerable farmers in rural landscapes. Full article

Cultivated land is an important material carrier providing multiple supplies for production, living, and ecological benefits. As an area of cultivated land subject to high levels of human activity during urbanization, the functional level and structure of suburban cultivated land have been strongly impacted. In this study, we took the suburban cultivated land in Nanchang City as the research subject and constructed a multi-functional indicator system for cultivated land in the context of production, ecology, and landscape culture. Using the improved CRITIC-entropy weight method and the optimal parameter geographical detector model, we examined the multi-functional evolution of suburban cultivated land from 2012 to 2022 and its response mechanisms to urbanization. The results showed that (1) the multifunctionality of cultivated land in the peri-urban area of Nanchang City shows a general decreasing trend, with the decline gradually decreasing with an increase in distance from the central urban area. (2) In contrast, the multifunctionality level of a few cultivated land areas away from the central area of the city showed a small to medium increase. The function of cultivated land in the peri-urban area showed a decreasing trend in 2012–2022 due to the urbanization level. However, the production and ecological functions increased slightly, whereas the cultural function decreased significantly. (3) The impact of urbanization on the multifunctional transformation of peri-urban cultivated land is a complex process that is largely shaped by economic urbanization and is influenced by a multitude of factors. Therefore, cultivated land management policies must fully mobilize the socioeconomic resources of each region. Full article

Investigating the evolution and drivers of multifunctional land use is essential for sustainable land management and regional biological conservation. This research focuses on the Hehuang Valley, where we developed an “ecological-social-production” evaluation system for assessing land use multifunctionality from the perspective of multifunctional landscape. Leveraging Geographic Information System technologies, we conducted a quantitative analysis of spatiotemporal variations in multifunctional land use across the valley in recently twenty years. Correlation coefficients were employed to identify trade-offs and synergies among various land use functions. Additionally, geographical detector and grey relational analysis models were utilized to pinpoint the factors influencing spatiotemporal changes in land use functions during the specified period. The results showed that: (1) During the period, the overall multifunctionality of land use in the Hehuang Valley exhibited an increasing trend. The economic production function of the land showed the highest growth, while the ecological and social functions showed lower growth. (2) In most areas of the Hehuang Valley, there was a positive correlation between social and economic production functions and a negative correlation between social and ecological functions, as well as between economic production and ecological functions. (3) Natural conditions were the main factors of spatial variation of land use comprehensive functions, but human factors, including land use intensity and the rate of farmland conversion to non-agricultural uses, were the primary drivers of temporal changes in multifunctional land use. The findings provide valuable references and scientific support for policymakers in optimizing land use and multifunctional landscape conservation. Full article

With China’s rapid economic development in recent years, enhancing the sense of well-being among citizens has become a critical objective. However, the interests of various stakeholder groups are often overlooked in decision-making surrounding land use. In this study, Yongsheng County, Yunnan Province serves as a case study for land use scenario simulations. The equivalent factor method is combined with Participatory Rural Appraisal (PRA) to investigate the relationship between ecosystem multifunctionality (EMF) and the equity index of multiple stakeholder groups in various land use scenarios. We also explore whether an optimal combination of land use types exists. The results indicate that (1) The current ecosystem service value in Yongsheng County is primarily driven by climate regulation and biodiversity conservation, with a relatively high functional value index but a comparatively low equity index; (2) Different stakeholder groups mainly prioritize food production and ecosystem services impacting food production, such as water resource provision and climate regulation; (3) A land use allocation pattern of 20% farmland, 4% water bodies, 21% mixed forest, 20% coniferous forest, and 35% grassland appears to provide the optimal EMF index while simultaneously achieving the optimal equity index across stakeholder groups. This research may offer valuable insights for optimizing land use planning while taking into account the well-being of diverse stakeholder groups. It also may have practical implications for the formulation of innovative land use management strategies. Full article

Exploring the interrelationships and influencing factors of the multifunctionality of cultivated land is crucial for achieving its multifunctional protection and sustainable use. In this paper, we take the Min River basin as a case study to construct a multifunctional evaluation system based on “agricultural production, social security, ecological service, and cultural landscape” using multi-source data. We analyze the spatial and temporal characteristics of the multifunctionality of cultivated land through kernel density estimation (KDE) and visual mapping. Subsequently, we assess the trade-off strength between the multifunctional aspects of cultivated land using the root mean square error (RMSD). Finally, we identify the drivers of the multifunctional trade-off intensity of cultivated land and analyze their influencing mechanisms using Geographic Detectors. The results show that (1) from 2010 to 2020, the multifunctional structure of cultivated land in the study area underwent significant changes: the levels of agricultural production, social security, and ecological service functions first increased and then decreased, while the levels of cultural landscape function and comprehensive function continued to increase. The spatial distribution is characterized, respectively, by “high in the east and low in the west”, “high in the west and low in the east”, “high in the north and low in the south”, “high in the whole and sporadically low in the northeast”, and “high in the middle and low in the surroundings”. (2) During the study period, the trade-off strengths related to social security functions increased, while the trade-off strengths of the remaining multifunctional pairs of cultivated land showed a weakening trend, with high values of trade-off strengths among functions particularly prominent in the Nanping Municipal District. (3) Both natural and human factors significantly affect the multifunctional trade-off strength of cultivated land. Among the specific factors, elevation, slope, average annual temperature, and per capita GDP are the key factors influencing the strength of the trade-offs between functions. The results of this study provide empirical support for enriching the understanding of the multifunctionality of cultivated land and offer a decision-making basis for promoting the differentiated management of cultivated land resources and the synergistic development of its multifunctionality. Full article

Agricultural landscapes are currently suffering and generating severe ecological issues. This is especially true in intensively managed alluvial contexts, where biodiversity is declining and ecosystem services (ES) delivery capacity is being depleted. The aim of our study is to set up and test a synthetic analytical methodology that allows us to: understand current agricultural landscape ecological quality drivers (structural and functional traits); identify context-specific strategies to correct current negative trends (landscape ecology design approach); and assess the changes in the landscape ecological behavior provided by design scenarios. The applied methodology is low-cost and low-time-demanding and is based on multi-scale landscape ecology and land-use-based ES assessment; it implements a pattern-process-design approach. Analyses are applied to four northern Italian alluvial agricultural landscape systems. We specifically address landscape biodiversity support functions (landscape ecology indicators) and landscape multifunctionality (ES spatial assessment). We test the agroforestry approach (landscape feature insertions and crop diversification) as a key strategy to enhance ecological quality and ES, and we account for its contributions to context-specific design scenarios. This analytical toolkit might serve for future applications on similar case studies. Full article