A multi-species approach for protected areas ecological network construction based on landscape connectivity

Global Ecology and Conservation, Journal Year: 2023, Volume and Issue: 46, P. e02569 - e02569

Published: July 1, 2023

The establishment of ecological networks is crucial for biodiversity conservation, especially at broad spatial scales. It still challenging to develop an network construction method based on landscape connectivity multiple species. purpose this study propose a multi-species framework approach constructing and determine the restoration priority four focal mammal species across protected areas in western mountains Henan Province, China. We built each by using circuit theory least-cost path models, integrated corridors key barrier results showed that was closely related dispersal capacity. For with higher capacity, all core were interconnected have alternative paths, seemed be well connected. With decline ability, became more complex not connected, migration exceed capability emerged. important consider needs species-specific management plans. Key areas, which significant impacts migration, are mainly land use dominated cropland. Our research indicates methods proposed can help may facilitate conservation efforts species, poor distribution movement data.

Language: Английский

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Predicting the ecosystem service values and constructing ecological security patterns in future changing land use patterns

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110787 - 110787

Published: Aug. 25, 2023

The land use and cover change (LUCC) associated with climate human activities poses a persistent threat to ecosystems, profoundly impacting ecological security. Simulating spatiotemporal changes in ecosystem service values (ESVs) security patterns (ESPs) under different future scenarios is crucial for formulating sustainable development policies. This study introduces comprehensive framework multi-scenario analysis, which combines the system dynamics (SD) model, patch-generated land-use simulation (PLUS) minimum cumulative resistance (MCR) model simulate ESV ESP LUCC using SSP-RCP provided by CMIP6. results show that three (SSP245, SSP585, SSP126), year 2050 predicted be 10.285 billion yuan, 10.248 10.327 respectively. Additionally, area of sources estimated 78.56 km2, 65.90 141.38 while lengths corridors are 428.05 km, 332.45 527.10 numbers nodes 14, 9, 15, Notably, SSP126 scenario demonstrates significant improvement compared SSP245 SSP585 scenarios, indicating effective protection land. provides valuable insights serves as reference decision-making concerning conservation resource management at county municipal scales.

Language: Английский

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Identification and optimization of ecological security pattern in arid inland basin based on ordered weighted average and ant colony algorithm: A case study of Shule River basin, NW China

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110588 - 110588

Published: July 5, 2023

Optimization of ecological security patterns (ESP) is an important way to implement land space restoration and maintain regional sustainable development. How comprehensively identify ESP while maintaining the balanced development each ecosystem service key issue in identification construction at present. Using data on use, meteorology, vegetation biomass socio-economic statistics, quality six typical services Shule River basin (SRB) 2010 2020 were calculated for food supply, water conservation, carbon fixation oxygen release, habitat quality, soil conservation culture leisure. The ordered weighted averaging (OWA) model was introduced priority areas as source, minimum cumulative resistance (MCR) used extract corridors nodes. Based ant colony algorithm optimal paths study area, spatial scope corridors, potential recovery points, construct optimization ESP. results show that temporal differences SRB significant, showing characteristics overall dispersion small concentration. 76 source patches with a total area 2.29 × 104 km2; 54 length 3161.87 km; 36 nodes identified. Overall, shows network complete but there still room optimization, local problems are prominent. extracted 4.21 km2, 4 points. Finally, "two two belts, three areas" determined.

Language: Английский

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Constructing a multi-leveled ecological security pattern for improving ecosystem connectivity in the Asian water Tower region

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110597 - 110597

Published: July 8, 2023

Serious ecological crises have emerged in the Asian Water Tower region (17 countries centered on Qinghai-Tibetan Plateau), making it a major priority and challenge for even global conservation efforts. Constructing multi-leveled security pattern (ESP) based synergies among multiple ecosystem services (ESs) this can enhance structural integrity, functional stability, spatial connectivity of ecosystems. Therefore, series GIS analysis methods, minimum cumulative resistance model, analytic hierarchy process, study measured importance five key ESs focused by Sustainable Development Goal 15 (including water conservation, carbon sequestration, sand fixation, soil biodiversity conservation); took fishnet scale as data calculation unit to construct hierarchical ESP three levels sources corridors) provide evidence-based support identifying prioritizing synergistic actions across scales (regions, nations, basins). Overall, included total 534 656 corridors. Some obstacles (e.g., edge effects several human activities) corresponding are provided, such integrating ESPs into long-term planning, enhancing restoration both extent quality forests increasing tree species richness), collaboration resource mobilization land use.

Language: Английский

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Higher water ecological service values have better network connectivity in the middle Yellow River basin

Ecological Indicators, Journal Year: 2024, Volume and Issue: 160, P. 111797 - 111797

Published: Feb. 26, 2024

There are numerous ecological challenges that of considerable concern caused by urbanization and natural calamities. The spatial pattern the landscape is great significance in maintaining species diversity regulating material cycles individual ecophysiological processes as a medium for ecosystem service functions. Resolving conflicting relationships between people land necessitates precise identification essential sources. Therefore, there an urgent need to investigate relationship sources values (ESVs) optimize matter energy.connectivity network. study optimizes network simulation using penetration threshold, population density inverse distance formula, geodetector weight analysis, constructs networks evaluates their structure minimum cumulative resistance (MCR) model complex discusses topological characteristics (NTCs) various ESVs. results show major corridors primarily along banks Wei River Fen River. clustering coefficient has significant negative correlation with both water supply regulation values. It found higher related resources have better connectivity. This result plays reference role several crucial components, such sources, nodes stepping stones, middle Yellow basin (MYRB). Ultimately, we propose strengthening protection eastern part Qinling Mountains increasing communication capacity forestland on sides river valley create optimized pattern.

Language: Английский

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Identifying the Landscape Security Pattern in Karst Rocky Desertification Area Based on Ecosystem Services and Ecological Sensitivity: A Case Study of Guanling County, Guizhou Province

Forests, Journal Year: 2023, Volume and Issue: 14(3), P. 613 - 613

Published: March 19, 2023

Ecological environmental security in karst areas is an issue of global concern. Identifying the ecological landscape pattern (ELSP) key to promoting protection and alleviating land development utilization impacts. sources (ESs) corridors (ECs) are important bases for constructing ELSP. We used five influencing factors (land use type, digital elevation model (DEM), rocky desertification degree, normalized difference vegetation index (NDVI) slope) obtain distribution importance sensitivity values ecosystem services Guanling County, Guizhou Province. The probability connectivity (PC) was calculated, ES extracted by combining services, sensitivity, connectivity. According topographic geomorphological characteristics seven indicators elevation, slope, degree stone desertification, distance from rivers, settlements, roads were selected as resistance outward expansion ESs calculate comprehensive surface County. Based on gravity model, interaction matrix between 10 constructed, magnitude forces source sites quantitatively evaluated distinguish ECs general ECs. study showed that total length County 509.78 km, core area large, accounting 65.73% area. By assessing connectivity, 45 EC obtained based ArcGIS10.8, which constituted Suggestions proposed a planning layout will benefit restoration region according characteristics.

Language: Английский

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Changes in and Patterns of the Tradeoffs and Synergies of Production-Living-Ecological Space: A Case Study of Longli County, Guizhou Province, China

Sustainability, Journal Year: 2022, Volume and Issue: 14(14), P. 8910 - 8910

Published: July 20, 2022

Production-living-ecological space (PLES) constitutes territorial space, and how to scientifically optimize PLES has become the core issue of spatial planning in China. This paper constructs a classification system for based on merge classification. Taking Longli County, Guizhou Province, China, as an example, this studies patterns 2015 2019, driving factors changes patterns, interrelationships production (PS), living (LS) ecological (ES) proposes new scheme dominant functional zoning. The results show that: (1) high-scoring areas PS LS County are mainly located near center each town, with obvious consistency distribution. ES suburbs far from towns, conflicting LS; (2) In five-year period, continuously expanded. Specifically, expanded most perspective rate change, shrunk continuously; (3) Socioeconomic factor affecting PLES, among which distance town greatest influence; (4) Based correlation coefficient, have significant positive correlation, but they negative ES. terms relationships, synergistic their relationships involve tradeoffs; (5) single area is main area, ecological-dominant largest. study provide reference sustainable regional development.

Language: Английский

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Multi-Scenario Simulation of Ecosystem Service Values in the Guanzhong Plain Urban Agglomeration, China

Sustainability, Journal Year: 2022, Volume and Issue: 14(14), P. 8812 - 8812

Published: July 19, 2022

Rapid urbanization and human activities enhanced threats to the degradation of various ecosystem services in modern urban agglomerations. This study explored response service values (ESVs) land use changes trade-offs among ESVs agglomerations under different future development scenarios. The patch-general simulation (PLUS) model ESV calculation method were used simulate Guanzhong Plain Urban Agglomeration Business As Usual scenario (BAU), Ecological Conservation (EC), Economic Development (ED) 2030. Global local Moran’s I detect spatial distribution pattern, correlation analysis was measure services. results showed that: (1) simulated result high accuracy compared actual observed same period, with a Kappa coefficient 0.912. From 2000 2030, significant, rapid decrease farmland an increase construction land. area woodland increased significantly EC scenario, rapidly ED scenario. (2) decline total CNY 218 million from 2020, remained downward trend BAU scenarios decreasing by 156 4731 million, respectively. An increasing growth 849 million. (3) Significant autocorrelation Agglomeration, as all positive p-values zero. grids mainly “High-High” clusters mountainous areas “Low-Low” plain areas. Except for food production, majority exhibited synergistic relationships. In planning development, policymakers should focus on coordinated process ecological preservation build safety pattern.

Language: Английский

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Evaluation of the Spatiotemporal Evolution of China’s Ecological Spatial Network Function–Structure and Its Pattern Optimization

Remote Sensing, Journal Year: 2022, Volume and Issue: 14(18), P. 4593 - 4593

Published: Sept. 14, 2022

(1) Background: Eco−spatial networks play an important role in enhancing ecosystem services and landscape connectivity. It is necessary to study structure optimization achieve synergistic gains network connectivity functionality. (2) Method: Based on remote sensing data, RS GIS were used evaluate the spatiotemporal changes China. Combined with complex theory, evolution of China’s ecological spatial its topological from 2005 2020 discussed. Network function–structure co−optimization was carried out using edge augmentation strategy. (3) Result: The “three River resource” has high water conservation soil southeastern hilly areas. There strong windbreak sand fixation Inner Mongolia. In past 15 years, there have been about 8200 sources 14,000 corridors. characteristics small−world heterogeneity. After optimization, 18 3180 corridors are added, robustness stronger. Finally, five regions divided according heterogeneity corresponding protection management countermeasures proposed provide scientific guidance for country’s territorial space planning.

Language: Английский

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Landscape Ecological Risk Assessment and Zoning Control Based on Ecosystem Service Value: Taking Sichuan Province as an Example

Applied Sciences, Journal Year: 2023, Volume and Issue: 13(22), P. 12103 - 12103

Published: Nov. 7, 2023

The escalation of urbanization in Sichuan Province has resulted irrational land use and excessive resource exploitation. These developments have consequently diminished the functionality ecosystem services exacerbated landscape fragmentation region. challenges pose significant threats to ecological security area. In this study, we computed service value risk index from 2005 2018. We analyzed spatial autocorrelation between index, constructing a framework for assessment zoning control based on value. results show following: (1) Between 2018, total increased CNY 10,261.17 × 108 10,310.43 108, with forest grassland being primary contributors ESV. (2) High- higher-risk areas within ecology are expanding, forming pattern high-level concentration west east. (3) There exists negative correlation Province. (4) conservation zone, principle low-impact development must be upheld. cultivation adjusting proportion types is necessary enhance rationality structure. agricultural zone should fully utilize advantages agriculture, while improvement requires focused attention restoration remediation.

Language: Английский

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