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.
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.