基于ESV的如皋市土地生态环境影响研究

将基于ESV的LUCC生态环境影响研究运用到新一轮土地利用规划修编当中，并对其运行结果进行探讨具有重要意义。通过分析如皋市1997年与2006年土地利用/土地覆盖的对比情况，从生态系统服务价值角度评价LUCC对生态环境的影响，结果表明：如皋市土地生态系统服务功能中贡献较大的有废物处理、水源涵养、气候调节、土壤形成与保护功能，贡献率依次递减；与1997年相比，2006年如皋市ESV有所降低;园地、水域、沙地等未利用地的减少是造成整体ESV下降的主要原因。根据2006年如皋市各镇土地生态系统服务价值差异，将其分为重要、 比较重要、一般地区3个等级，运用GIS空间制图功能，绘制如皋市土地生态分区图，为如皋市新一轮土地利用规划修编以及土地资源可持续利用和生态环境保护提供依据。

A CASE STUDY OF RUGAO CITY:LAND ECOLOGICAL ENVIRONMENTAL IMPACT BASED ON ESV

It is of significance to apply LUCC ecological environmental impact based on ESV to study the new land planning. In Rugao city, the dynamic changes or land utilization during 1997 to 2006 indicates that the big contributions to the land ecological system are waste disposal, water source maintenance, climatic adjustment, soil formation and protection, decreasing in contribution factors. The cause that the ESV fell from 2006 to 1997 is derived from a 〖JP3〗decrease in garden land, water fields, sand fields which are unused. This paper classifies the lands according to their ecological functions into three grades, important, secondary important and normal. MapGIS is applied to draw the ecological function map, offering a reference for the new land utilization planning and sustainable development in Rugao city.