The Study Of Dynamics Change On The Opencast Ecosystem Services Value

The research on the ecosystem service function can more reflect human activities on the eco-system comparing previous research. Recently, this study of ecosystem service value from domestic and abroad focus on the regional scale and individual ecosystem, therefore , it can not reflect the change of ecosystem function completely. Surface mining activities have adverse impact on environmental issues, such as coal mine accidents, land subsidence; damage to the water environment, mining waste disposal and air pollution, the factor at regional scale can not be selected to assess the value of ecosystem function. It is necessary to study the ecosystem ser vice function in large surface coal mine , this paper is aimed to predict he land use change , evaluate the ecosystem service function according to the different land use cover.(1) According to the special mining process in the open-pit coal mine, the ecological area was planning by considering the disturbed degree. The land use change information which is helpful for the evaluating the ecosystem value is obtained from SPOT image.(2) According to the previous study by Xiegaodi on the ecosystem value in China, in this paper, the value in the study area was calculated, and the function value based on different land use type, different function zone and different ecosystem. It can provide the practice management for land reclamation and make the measure for monitoring and protecting the mining environment..(3) The factor is very significant for the study of ecosystem service function. The influence factors, such as population, economy. Policy and ecology were chosen to analyze the drive force of ecosystem service function in the study area.