中国环境科学2008,28(7)：661~666ChinaEnvironmentalScience基于GIS的生态系统服务直接利用价值评估方法陈能汪*,张潇尹,卢晓梅(浙江大学环境科学系,浙江杭州310028)摘要：针对目前生态系统服务直接利用价值评估中缺乏空间表达、对数据要求高、评估效率低等不足,初步构建了适用于县域尺度的生态系统服务(产品提供和娱乐文化)直接利用价值评估框架与技术方法,确定评估过程与关键步骤,初步形成一套基于GIS的科学高效的农业服务价值、森林木材价值和旅游价值的空间表达技术方法.对浙江省天台县生态系统服务直接利用价值进行空间分配与评估.2005年全县生态系统服务直接利用价值达5.38亿元,其中以农业服务价值为主(65%),其次是森林木材价值(30%),旅游价值所占比例较低(5%).生态系统服务直接利用价值与产品及服务的空间分布状况密切相关,存在高度的空间变化.关键词：生态系统服务；直接利用价值；地理信息系统(GIS)；评估方法中图分类号：X82文献标识码：A文章编号：1000-6923(2008)07-0661-06Mappingdirectusevalueofecosystemservices:aGIS-basedapproach.CHENNeng-wang*,ZHANGXiao-yin,LUXiao-mei(DepartmentofEnvironmentalScience,ZhejiangUniversity,Hangzhou310028,China).ChinaEnvironmentalScience,2008,28(7)：661~666Abstract：AGIS-basedapproachdesignedforspatiallyvaluationandvisualizationwasdevelopedtoestimatedirectusevalueofecosystemserviceandtomapresultsforacasestudyrepresentingacountyscale.TheapproachhighlightstheuseofGIStocollectdata,spatialanalysis,andcalibrateeconomicvaluesofecosystemservice.Threecorestepsofspatialvaluationforagriculturalproducts,forestproducts,andtourismassetswereinvestigatedinthetechnicalframework.TheGIS-basedapproachwasimplementedinacaseofTiantaiCounty,ZhejiangprovinceinsoutheastChina.SelectedcomponentsofnaturalproductsandtourismassetsintheTiantaiCountyweremappedasdatalayersinaGIS,witheachlayercontainingmonetaryvaluesforevery25mcell.Theresultsofthiscasestudyshowedthatatotalvalueof538millionRMBsin2005,8.6%ofGDP,wasmostlycontributedbyagriculturalproducts(65%oftotalvalue)andforestproducts(30%oftotalvalue).Acurrentloweconomicvalueoftourismassetscanbeincreasedbydevelopmentofeco-tourismandecosystem-basedconservationandmanagement.Theeconomicvaluemapsofecosystemservicecanbeusedtoobtaindistributionofthenaturalcapitalandidentifyregionsneededmoreconcern.ThepresentstudydemonstratesthatGISisapowerfultoolformappingdirectusevalueofecosystemservice,andalsoprovidesasolidfoundationforintegratedvaluationofregionalecosystem,eco-environmentalzoningandplanning,asw