Designing Ecological Security Patterns Based on the Framework of Ecological Quality and Ecological Sensitivity: A Case Study of Jianghan Plain, China
Xueping Su,Yong Zhou,Qing Li +2 more
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TLDR
Zhang et al. as mentioned in this paper identified key ecological sources by overlaying the spatial patterns of ecological quality and ecological sensitivity (habitat sensitivity, soil erosion sensitivity, and water sensitivity) using the Integrated Valuation of Environmental Services and Tradeoffs (InVEST) model and the Chinese Soil Loss Equation Function.Abstract:
Researchers and managers of natural resource conservation have increasingly emphasized the importance of maintaining a connected network of important ecological patches to mitigate landscape fragmentation, reduce the decline of biodiversity, and sustain ecological services. This research aimed to guide landscape management and decision-making by developing an evaluation framework to construct ecological security patterns. Taking the Jianghan Plain as the study area, we identified key ecological sources by overlaying the spatial patterns of ecological quality (biodiversity, carbon storage, and water yield) and ecological sensitivity (habitat sensitivity, soil erosion sensitivity, and water sensitivity) using the Integrated Valuation of Environmental Services and Tradeoffs (InVEST) model and the Chinese Soil Loss Equation Function. Ecological corridors were obtained by the least-cost path analysis method and circuit theory. A total of 48 ecological sources (3812.95 km2), primarily consisting of water area, forestland, and cropland, were identified. Ninety-one ecological corridors were derived, with a total length of 2036.28 km. Forty barriers and 40 pinch points with the highest improvement coefficient scores or priority scores were selected. There were 11 priority corridors with very high levels of connectivity improvement potential and conservation priority, occupying 16.15% of the total length of corridors. The overall potential for ecological connectivity is high on the Jianghan Plain. Our framework offers a valuable reference for constructing ecological security patterns and identifying sites for ecological restoration at the regional scale.read more
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Delimitation of ecological corridors in a highly urbanizing region based on circuit theory and MSPA
Yu-jun Wang,Ziya Qu,Qicheng Zhong,Qingping Zhang,Lang Zhang,Rui Zhang,Yang Yi,Guilian Zhang,Xiaoce Li,Jie Mei Liu +9 more
TL;DR: In this paper , an integrated approach for determining the suitable areas of ecological corridors in a rapidly urbanizing region was developed, where key species for urban ecological corridors were identified and Morphological Spatial Pattern Analysis (MSPA) was applied to identify core areas and established corridors in the city, which was then integrated with NDVI and InVEST to construct resistance surfaces.
Journal ArticleDOI
Identification of crucial areas of territorial ecological restoration based on ecological security pattern: A case study of the central Yunnan urban agglomeration, China
TL;DR: Zhang et al. as mentioned in this paper proposed a scientific solution to construct ecological security pattern (ESP) and identify the crucial areas of territorial ecological restoration at the scale of urban agglomeration.
Journal ArticleDOI
Construction of Regional Ecological Security Patterns Based on Multi-Criteria Decision Making and Circuit Theory
TL;DR: In this article , a spatial pattern of ecosystem services is constructed for multiple scenarios based on the multi-criteria decision-making method ordered weighted averaging (OWA), calculate the trade-off degree and conservation efficiency of each scenario, identify ecological priority conservation areas, use circuit theory to explore ecological corridors and key areas and to construct regional ecological corridors, and identify regional pinch points and barrier points which may impede the construction of regional ecological security patterns.
Journal ArticleDOI
Construction of an Ecological Security Pattern and the Evaluation of Corridor Priority Based on ESV and the “Importance–Connectivity” Index: A Case Study of Sichuan Province, China
TL;DR: Zhang et al. as discussed by the authors used the spatial distribution patterns of ecosystem services to adjust the ecosystem service value to accurately identify the distribution of ecological sources and build an "importance-connectivity" index that evaluates the importance of ecological corridors in linking the sources and the contribution of ecological networks.
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Construction of Ecological Security Pattern Based on the Importance of Ecological Protection—A Case Study of Guangxi, a Karst Region in China
TL;DR: In this paper , the authors examined Guangxi, a karst region in China, and found that there are 50 patches of ecological sources with a total area of 60,556.99 km2; 115 ecological corridors, with the longest corridor reaching 194.97 km; 301 ecological pinch points, whose spatial distribution is fragmented; and 286 ecological barrier points, most of which are concentrated in the central part of Guangxi.
References
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