入藏号：WOS:001248887800001

中国科学院文献情报中心期刊分区：环境科学与生态学1区TOP（2023）

本校作者：曾婉婷；何政伟*；白文倩；何丽；陈欣

* Corresponding author

来源出版物：SCIENCE OF THE TOTAL ENVIRONMENT 卷：928 文献号：172302

出版年：2024

第一地址：成都理工大学

关键词：Ecological security patterns; Circuit theory; Landscape ecological risks; InVEST model; Alpine wetland grasslands

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摘要：Climate change and human activities have increased ecological risks and degraded ecosystem functions in alpine wetland grassland regions, where ecological security remains largely unexplored. The construction of ecological security patterns (ESP) can help to synchronize regional ecological security and sustainable development and provide ideas to address these challenges. This article determines the current ESP of Zoigê County, China, by analyzing the spatial and temporal characteristics of landscape ecological risk (LER) and generating an ecological network by combining the InVEST model, the landscape connectivity index, and the circuit theory model. Management zoning and targeted conservation recommendations are proposed. The results indicate that the region has significant spatial heterogeneity in IER. Ecological risk exposure is increasing, with high values mainly concentrated in the central part of the region. Meanwhile, ecological protection areas were identified, which included 2578.44 km⟡ of ecological sources, 71 key ecological corridors, 25 potential ecological corridors, 4 river ecological corridors, 66 pinch points, and 58 barriers. This study provides a valuable reference for the ecological development of Zoigê County, as well as insights into the formation of ESP in other alpine wetland grassland regions.

文章链接地址：https://www.sciencedirect.com/science/article/pii/S0048969724024458