水土保持通报2017，Vol.37Issue(1)：224-228,5.DOI:10.13961/j.cnki.stbctb.20160918.001
基于SRP模型的甘肃省白龙江流域生态环境脆弱性评价
Assessment of Eco-environmental Vulnerability of Bailongjiang Watershed in Southern Gansu Province Based on SRP Model
摘要
Abstract
[Objective] The objective of the study is to provide theoretical support for ecological restoration and sustainable management in the future by comprehensive assessment of eco-environmental vulnerability in Bailongjiang watershed in Southern Gansu Province.[Methods] Based on ecological sensitivity-resiliencepressure model and characteristics of eco-environmental systems in Bailongjiang watershed in Southern Gansu,we used analytic hierarchy process(AHP) method to assess eco-environmental vulnerability with GIS/RS technology.According to the eco-environmental vulnerability index,the study area was classified into five levels:slight vulnerability(＜0.38),light vulnerability(0.38～0.44),moderate vulnerability(0.44～0.50),high vulnerability(0.50～0.57) and extreme vulnerability(＞0.57).[Results] The moderately and highly vulnerable area accounted for 28.93％ and 22.76％ of the total area.Moreover,the highly and extremely vulnerable area was primarily distributed in the middle reaches of Bailongjiang watershed,which was characterized with low vegetation coverage,rapid urbanization and industry and agricultural development and frequent human activities.[Conclusion] The watershed is facing huge eco-environmental pressures.It is urgent to study the driving mechanism and evolution rules in order to provide support for ecological restoration and reconstruction in near future.关键词
SRP模型/生态环境脆弱性/白龙江流域/GIS/AHP方法Key words
SRP model/eco-environmental vulnerability/Bailongjiang watershed/GIS/AHP分类
资源环境引用本文复制引用
齐姗姗,巩杰,钱彩云,谢余初,张影..基于SRP模型的甘肃省白龙江流域生态环境脆弱性评价[J].水土保持通报,2017,37(1):224-228,5.基金项目
国家自然科学基金项目“甘肃白龙江流域景观格局与生态系统服务功能时空变化研究”(4127199) （4127199）
