土地利用演变对泸沽湖流域生态系统服务价值评估与时空变化的影响  

Impacts of Land Use Evolution on the Evaluation of Ecosystem Service Value and Temporal Variation in the Lugu Lake Basin

作　　者：王静[1] 周绍昆 孟繁林 张龙[1] 宋钰红[1,2] WANG Jing;ZHOU Shao-kun;MENG Fan-lin;ZHANG Long;SONG Yu-hong(College of Landsc ape Architecture and Horticulture Science,Southwest Forestry University,Kunming Yunnan 650224,P.R.China;Southwest Landscape Engineering&Technology Center of National Forestry and Grassland Administration,Kunming Yunnan 650224,P.R.China)

机构地区：[1]西南林业大学园林园艺学院,云南昆明650224 [2]国家林业与草原局西南风景园林工程技术研究中心,云南昆明650224

出　　处：《西部林业科学》2022年第5期34-42,共9页Journal of West China Forestry Science

基　　金：国家自然科学基金项目(51968064);国家自然科学基金项目(31560231)。

摘　　要：为了探索土地利用/土地覆盖变化(LUCC)对生态系统服务价值(ESV)的影响,基于泸沽湖流域2000年、2010年、2020年的遥感影像数据,运用价值当量因子法分析该区域生态系统服务价值(ESV)的空间差异及演变特征。结果显示:(1)2000—2020年期间,泸沽湖流域土地利用类型呈两增两减模式,耕地和水域逐年减少,林地和建设用地逐年增加,草地先减后增。(2)泸沽湖流域ESV总量先减后增,总体呈增长趋势,主要贡献来源为林地和水域服务价值,单项ESV差异较大,调节服务功能大于供给服务功能。(3)泸沽湖流域ESV敏感性指数均小于1,关联性排序为水域>林地>草地>耕地>未利用地>建设用地。研究表明:在“退耕还林”的政策实施下,泸沽湖流域保护工作成效显著,ESV值由低到高,在土地结构调整、功能优化配置、资源合理开发时应重视林地和水域的保护,合理开发利用流域未来土地资源,为促进流域可持续发展提供依据。In order to study the influence of land use/land cover change(LUCC)on Ecosystem Service Value(ESV),the land use data of Lugu Lake basin in 2000,2010 and 2020,and the value equivalent factor assessment were used to analyze the spatial difference and evolution characteristics of ESV in recent 20 years.The results showed that:(1)From 2000 to 2020,the land use types in Lugu Lake basin indicated two increase and two decrease mode,cultivated land and water area decreased year by year,forest land and construction land increased year by year,grass land first decreased and then increased;(2)The total amount of ESV in Lugu Lake basin decreased first and then increases,and the service value of individual ecosystem service function was obvious,and the regulation service function was much greater than the supply service function;(3)The ESV sensitivity index of Lugu Lake basin was less than 1,and the correlation was:water>wood land>grass land>cultivated land>unused land>construction land.The study shows that,under the“Returning Farmland to Forests”policy,the protection of Lugu Lake basin has achieved remarkable results,and the ESV value has changed from low to high.For better adjustment of land structure,optimal allocation of functions,and rational development of resources,attention should be paid to the protection of forest land and water areas,effectively and rationally developing future land resource utilization in the basin,and facilitating sustainable development of the basin.

关 键 词：泸沽湖流域 生态系统服务价值 土地利用 当量因子法 

分 类 号：X171.1[环境科学与工程—环境科学] F301.2[经济管理—产业经济]