Response of Ecosystem Services Value to Land-use Structure Change——A Case Study in Neijiang City

The purpose of the study is to quantify the ecological benefit of land-use change by ecosystem service value and decide whether the current land use mode is sustainable. Such methods were applied as ecosystem service theory, environmental economics, grey systemic dynamic model. The result revealed that the total ecosystem services value decreased 43.3×108 Yuan from 1996 to 2004. And it will decrease 968.29×108 Yuan in case of keeping current land use mode, resource consuming and pollution emission level from 2004 to 2010. We can found that the decreasing of ecosystem service value was caused by expansion of artificial ecosystem. So it is high time to enact scientific land-use planning and optimize land-use structure.