基于活力-组织力-恢复力的黑河源区高寒湿地景观生态健康评估 postprint

Abstract: As a typical alpine wetland, the ecosystem health status of the Heihe River Source Area National Wetland Park is an important basis for measuring the current and future development status of alpine wetlands. Based on land use data, this study introduces the landscape ecology vulnerability index, and constructs a comprehensive assessment system of alpine wetland ecological health from four aspects of ecosystem vitality, organization, resilience and ecosystem service value, to quantitatively assess the spatial-temporal change characteristics of ecological health in the Heihe River Source Area from 2014 to 2021. The results show that: (1) Grassland in the Heihe River Source Area is the main land use type, with high, medium, and low coverage grasslands distributed in a mosaic pattern; The second is unused land, mainly distributed on both banks of the river and in the northwest. (2) The Heihe River Source Area is dominated by low vulnerability area and low vulnerability area, and the overall landscape ecology vulnerability is low. (3) The Heihe River Source Area is mainly healthy and moderately healthy, with a relatively high overall level of ecological environment health. Overall, the ecosystem of the Heihe River Source Area was relatively healthy from 2014 to 2021. In the future, the Heihe River Source Area can focus on ecological functions, balance animal husbandry production, and ensure the healthy development of the ecosystem towards "ecological harmony".