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当前位置: 首页 > 文章 > 土地整理工程影响下农业生态系统服务价值的变化 应用生态学报 2010,21 (3) 723-733
Position: Home > Articles > Changes of agroecosystem services value under effects of land consolidation Chinese Journal of Applied Ecology 2010,21 (3) 723-733

土地整理工程影响下农业生态系统服务价值的变化

作  者：
张贞;高金权;杨威;魏朝富
单  位：
四平市农业技术推广总站;天津城市建设学院管理工程系;天津农业技术推广站;西南大学资源环境学院
关键词：
土地整理;生态服务价值;成本效益分析;工程影响;合川
摘  要：
以重庆市合川土地整理项目区为例,对项目区整理前(2003年)、后(2007年)农业生态系统功能的变化进行量化描述,将工程设计和影子价格法相结合对干扰功能进行了量化,并采用成本效益分析法进一步解释生态系统功能的经济学意义,分析了工程影响下区域农业生态系统服务价值的变化.结果表明:与土地整理之前相比,研究区农业生态系统服务价值在整理后有所改善,其中增幅最大的是养分循环功能,变化最小的是土壤保持功能;在土地整理项目中,农田水利、田间道路和土地平整工程带来的生态服务价值改变主要体现为干扰功能的变化.项目建成后第7年到第35年,研究区成本效益率处于高速增长期,之后趋于稳定,表现为较弱的生态压力和较少的生态服务价值损失,有利于区域生态环境的改善.
译  名：
Changes of agroecosystem services value under effects of land consolidation
作  者：
ZHANG Zhen1, GAO Jin-quan2, WEI Chao-fu3 (1Department of Management Engineering, Tianjin Institute of Urban Construction, Tianjin 300384, China; 2Tianjin Center for Popularization of Agricultural Technique, Tianjin 300061, China; 3Siping Popularization of Agricultural Technique Station, Siping 136000, Jilin, China; 4College of Resources and Environment, Southwest University, Chongqing 400716, China).
关键词：
land consolidation; ecosystem services value; cost-benefit analysis; project effect; Hechuan
摘  要：
This paper quantitatively described the changes of agroecosystem functions before (2003) and after (2007) the implementation of Gaolong land consolidation project in Hechuan of Chongqing. Engineering design and shadow price were integrated to quantify the effects of the project on the functions, and cost-benefit analysis was used to further explain the economic meanings of the functions, and to analyze the changes of the agroecosystem services value under effects of the project. Compared with that before the land consolidation, the agroecosystem services value after the land consolidation was somewhat improved, with the largest increment of nutrient cycling function and the smallest change of soil conservation function. In the implementation of the project, the changes of the agroecosystem services value induced by farmland water conservancy, field road building, and land-leveling engineering mainly manifested in the change of disturbance function. From the 7th to 35th year after the project, the cost benefit would have a rapid increase, and tended to be stable after then, giving a weak ecological pressure and little services value loss, and benefiting the improvement of regional ecological environment.

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