期刊论文

中文

中国生态农业学报(中英文)

2096-6237

2015

23

12

1597-1604

10.13930/j.cnki.cjea.150606

湖南省高校创新平台开放基金项目 the Open Fund of Innovational Platform in Colleges of Hunan Province 国家自然科学基金项目

本校为第一机构

为研究衡阳盆地农村水资源系统脆弱性动态演变问题, 采用GIS/RS方法, 以衡阳盆地为研究对象, 构建由多年平均降水量、干旱指数(7-9月)、坡度指数、土壤蓄水能力指数、植被覆盖指数、土地利用指数、水源可获得性指数和人类活动指数8个指标组成的评价指标体系, 对1990~(-2)010年衡阳盆地农村水资源系统脆弱性进行定量评价, 构建模型对其脆弱性指数的时空演变特征进行分析。结果表明: 1)衡阳盆地农村水资源系统脆弱性近20年内整体呈现"中高周低, 北强南弱"空间分布之势。2)研究期内, 脆弱性整体有所增强, 空间分异明显, 脆弱性增强区域呈条带状南北展布, 脆弱性减弱区域则呈团聚状分布在东西两翼。...

In order to study the dynamic evolution of the vulnerability of rural water resources system in Hengyang Basin, an evaluation index system with 8 indicators was built. The indicators included average precipitation, drought index (July-September), slope index, soil water storage index, vegetation index, land use index, water availability index and human activity index. The index-driven evaluation system was used to determine the vulnerability of rural water resources system in Hengyang Basin from 1990 to 2010. A mathematical model was constructe...