长江上游生态脆弱区土地利用结构及生态服务价值变化响应——以甘肃省陇南市为例  

Responses of Ecologically Fragile Areas of Yangtze River of Ecological Service Value to Land Use Change——A Case Study of Longnan City,Gansu Province

作　　者：刘英英[1] 石培基[1] 刘玲[2] 刘春雨[1] 潘竟虎[1] 党国峰[1] 

机构地区：[1]西北师范大学地理与环境科学学院,兰州730070 [2]天津市环境保护科学研究院,天津300191

出　　处：《土壤》2011年第4期644-649,共6页Soils

基　　金：国家自然科学基金项目(40971078;41061017);国家社会科学基金项目(08AMZ003);甘肃省自然科学基金项目(0710RJZA104);西北师范大学科技创新项目(NWNU-KJCXGU-03-20)资助

摘　　要：利用陇南市2003—2008年土地利用变更调查数据和相关统计资料,运用景观生态学中的结构定量方法分析,计算出土地利用结构指数和生态服务价值,分析土地利用结构与生态服务价值的变化及其相互关系。结果表明:2003—2008年陇南市土地利用结构多样性指数和均匀度增加而优势度降低。林地提供的生态服务价值最大,土地利用生态服务价值总体呈增加趋势,土地利用生态服务价值与土地利用结构线性相关。By using the data of land use survey of Longnan City from 2003 to 2008 and the methods of structural quantitative analysis of landscpe ecology, this paper calculated the land use heterogeneity and ecological service value and analyzed the changes of land use structure and ecological service value as well as their relationship. The results showed that the indices of both diversity and evenness of land use increased but the dominance index of land use decreased. The ecological service value of forest land were highest in Longnan City, and the total ecological service value of land use increased from 2003 to 2008. There were linear correlations between the structure and ecological service value of land nsc ecosystem.

关 键 词：土地利用结构 生态服务价值 土地利用多样性 陇南市 

分 类 号：F301[经济管理—产业经济]