基于SRP模型的柴达木盆地生态脆弱性评价
Ecological Vulnerability Assessment of the Qaidam Basin Based on SRP Model
徐至真 1王建萍 2韩积斌2
作者信息
- 1. 中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海西宁 810008;青海省盐湖地质与环境重点实验室,青海西宁 810008;中国科学院大学,北京 100049
- 2. 中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海西宁 810008;青海省盐湖地质与环境重点实验室,青海西宁 810008
- 折叠
摘要
生态脆弱性评价是生态治理和修复的重要前提.柴达木盆地是对全球气候变化和人类活动干扰最为敏感的区域之一.通过SRP模型构建柴达木盆地生态脆弱性评价指标体系,基于地理信息技术和遥感技术,采用层次分析法,系统、定量地对柴达木盆地生态脆弱性进行评价.结果表明:1)柴达木盆地微度,轻度类型脆弱区面积为79 326 km2,占区域总面积的29.28%;中度类型脆弱区面积为67 044 km2,占区域总面积的24.74%;重度,极度类型脆弱区面积为124 613 km2,占区域总面积的45.98%.2)柴达木盆地东中西部生态脆弱性表现为"低-中-高"的分布特征.3)柴达木盆地生态脆弱性呈现出强烈的空间正相关特征.
Abstract
Ecological vulnerability assessment is an important prerequisite for ecological management and restoration.The Qaidam Basin is one of the most sensitive regions to global climate change and human ac-tivities disturbance.In this paper,the ecological vulnerability evaluation index system of the Qaidam Basin is constructed by SRP model,and the ecological vulnerability of the Qaidam Basin is evaluated systemati-cally and quantitatively based on geographic information technology and remote sensing technology,using hierarchical analysis.The results show that:1)the area of the slight,mild type of vulnerable area in the Qa-idam Basin is 79,326 km2,accounting for 29.28%of the total area;the area of the moderate type of vulner-able area is 67,044 km2,accounting for 24.74%of the total area;the area of the severe,extreme type of vulnerable area is 124,613 km2,accounting for 45.98%of the total area.2)the ecological vulnerability in-dex of the Qaidam Basin gradually increases from the east to the center and the west.3)the ecological vul-nerability of the Qaidam Basin shows a strong positive spatial correlation.
关键词
SRP模型/生态脆弱性/柴达木盆地/空间自相关Key words
SRP model/Ecological vulnerability/Qaidam Basin/Space autocorrelation引用本文复制引用
基金项目
中国科学院重点部署项目(ZDRW-ZS-2020-3)
青藏高原综合科学考察研究项目(第二次)(2019QZKK0805-02)
国家自然科学基金(U20A2088)
青海省自然科学基金团队项目(2022-ZJ-903)
青海省"昆仑英才·高端创新创业人才"项目(E140DZ3901)
出版年
2024
NETL
NSTL
万方数据