摘要
农田生态系统可以为人类提供各种农产品及多种间接生态服务功能。以河北省怀来县为例,借助GIS工具,从微地貌形态、土壤状况和土地利用类型3个方面选取相应指标,将怀来县农田生态系统分为3个生态类及6个生态亚类,并且从生产服务、调节服务、文化服务和支持服务4个方面选取7个指标构建评估模型,分别对6种农田生态亚类进行生态系统服务价值测算和分析。结果显示,怀来县农田生态系统服务总价值为225 311.90万元,4种农田生态系统服务价值大小为生产服务>文化服务>调节服务>支持服务;不同农田生态亚类的价值差异明显,其中Ⅱ—Ⅱ总价值最高,Ⅰ—Ⅰ最低;根据不同农田生态亚类价值功能组成比例,将6种农田生态亚类分为生产服务主导型和文化服务主导型两种类型,为怀来县未来因地制宜地发展区域农业、保护生态环境提供了参考。
The agricultural ecosystem provides products as well as a myriad of indirect ecosystem services.Taking Huailai County,Hebei Province as an example,based on GIS technology,we selected indicators from three aspects of the micro morphology,soil conditions and land use types,and divided the agricultural ecosystem into three ecological classes and six subclasses,then selected seven indicators to build evaluation model from four aspects such as production,regulation,cultural and support services,finally calculated and analyzed ecosystem services values（ESV）for each subclasses respectively.The result showed that the total ESV was 2.253 119 billion yuan,and the descending order were production,cultural,regulation and support services;there were obvious differences of ESV between different kinds of subclasses,where the highest total value wasⅡ—Ⅱ and the lowest wasⅠ—Ⅰ;according to different kinds of ESV composition proportion,we divided the six subclasses into two types of production service leading and cultural service leading,and provided the reference for the development of regional agriculture and protecting the environment according to the local conditions.
出处
《水土保持研究》
CSCD
北大核心
2016年第1期234-239,共6页
Research of Soil and Water Conservation
基金
河北省高等学校科学技术研究优秀青年基金项目(Y2012015)
