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Position: Home > Articles > Evaluation on Ecosystem Function Degradation Threaten in Upstream of Yangtze River Based on GIS Hubei Agricultural Sciences 2012,51 (19) 80-83

基于GIS的长江上游生态系统功能退化威胁评价

作  者:
程式学;周介铭;王玉宽;任平;杨存建
单  位:
中国科学院成都山地灾害与环境研究所;四川师范大学西南土地资源评价与监测教育部重点实验室
关键词:
长江上游;生态系统;GIS;生态退化;指标体系;评价
摘  要:
基于研究区森林、草地、农田及湿地四大生态系统构建了4个层次的指标体系结构。评价主要应用了InVEST模型、AHP法、数据标准化法以及GIS和RS技术,评价的栅格单元大小为100 m×100 m。最终评价结果显示,整个长江上游呈现出从"零星分布"发展为"集中连片"的退化状态。
译  名:
Evaluation on Ecosystem Function Degradation Threaten in Upstream of Yangtze River Based on GIS
作  者:
CHENG Wu-xue1,2,ZHOU Jie-ming1,WANG Yu-kuan2,REN Ping1,YANG Cun-jian1(1.Key Laboratory of Southwest Land Resource Evaluation and Monitoring,Ministry of Education,Sichuan Normal University,Chengdu 610068,China;2.Chengdou Institute of Mountain Hazards and Environment,Chinese Academy of Science,Chengdu 610041,China)
关键词:
the upstream area of Yangtze River;ecosystem;GIS;ecosystem degradation;index system;evaluation
摘  要:
A 4-level index system structure was built based on the 4 ecological systems,forest,grassland,farmland and wetland in the researched zone.Then InVEST model,AHP method,Data Standardization method,GIS and RS technology were applied to evaluate the ecosystem function degradation threaten of which the grid cell size was 100 m× 100 m.Final evaluation results showed that the degradation status along upper Yangtze River was developing from "scattered" to "centralized distribution".

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