Abstract:

Mastering alteration tendency of agricultural nonpoint source pollution and their impacts on China's economic development at this stage is the base to make sustainable agricultural development policy.This paper studied relationships of Environmental Kuznets Curve (EKC) between economic development and agricultural nonpoint source pollution by using panel datum model including 31 provinces in China from 1998 to 2006.We selected input densities of fertilizer and pesticides,livestock and poultry excrement density as a measurement of agricultural pollution emissions,and the per capita GDP was selected as a measurement of economic development.The result showed that an inverse“U”type relationship appeared between China's agricultural nonpoint sources pollution and economic growth.Three types of sources of pollution and per capita GDP are increasing at all studied stages and it needs more time to reach the “Turning Point”.The government should strengthen the agricultural environmental policy,and intensify the agricultural nonpoint source pollution control.

Key words: agricultural nonpoint source pollution/economic development/Environmental Kuznets Curve (EKC)/empirical test