Abstract:

In recent years，agricultural nonpoint source pollution has become one of the main pollution sources in China while there were few quantitative evaluations and researches on it．Based on the theory of ecoefficiency and the characteristic of agricultural production,this study designed an evaluation indicator system for agricultural ecoefficiency by integrating economic profit factors and environment impact facts．Using the restraint coneratio data envelopment analysis model,the agricultural ecoefficiency in Wuxi City,Jiangsu Province from 1998 to 2008 was evaluated on the basis of the relative data．The results showed that the agricultural ecoefficiency in Wuxi City appeared to be decreased initially and thereafter to be increased．The value had increased by 22% since 2006,which was primarily due to the significant decrease of chemical fertilizer and pesticide consumption．The evaluation indicator system and evaluation method in this paper would provide a mathematic tool for controlling agricultural nonpoint source pollution and improving agricultural ecoefficiency in China