水土保持通报2011，Vol.31Issue(3)：180-184,189,6.
基于土地利用的陕西省生态风险分析
Ecological Risk Analysis Based on Land Use in Shaanxi Province
摘要
Abstract
Changes of land use have great impacts on terrestrial ecosystems.The trends of land use changes were analyzed based on the land,social,economic,and environmental data.Using the methods of the composite index and analytic hierarchy process（AHP）,we established the ecological risk assessment systems considering natural,societal,and economic pressure,and evaluated ecological risk index and composite risks of land use structure including cultivated lands,forestlands,grazinglands,and water body.The results showed that the ecological risks were the greatest in cultivated lands,and smallest in water bodies.The order of the risks is： cultivated landwoodlandland for inhabitation,mining and manufacturing grazing and pasture land unutilized land land for transport facilitiesland for water conservancy facilities.The ecological risks caused by economic pressure,nature pressure,and society pressure were greatest,intermediate,and smallest,respectively,while composite risk increased.The ecological risks are related to an unreasonable structure of land-use,increase in population,decrease in water resources and increase of natural disaster.关键词
土地利用/生态风险/指标体系/陕西省Key words
land use/ecological risk/index systen/Shaanxi Province分类
管理科学引用本文复制引用
刘引鸽..基于土地利用的陕西省生态风险分析[J].水土保持通报,2011,31(3):180-184,189,6.基金项目
国家社会科学基金项目“西北地区生态风险综合评估及安全保障研究” （）
陕西省重点实验室项目“陕西省生态脆弱性及风险综合研究” （）
宝鸡文理学院重点项目“区域气候变化灾害效应及适应研究” （）
