作者机构:[1]School of Environment and Spatial Informatics, China Universi~ of Mining and Technology, Xuzhou Jiangsu, 221116, China, [2]Jiangsu Key Laboratory of Resources and Environmental Information Engineering, Xuzhou Jiangsu, 221116, China, [3]School of Management,China University of Mining and Technology, Xuzhou Jiangsu, 221116, China
相关基金:Acknowledgments: This work was supported by the National Natural Science Foundation of China (Grant No. 70971129) and Soft Science Project (Grant No. 2008041036-02). The authors would like to thank anonymous reviewers for their helpful comments.
LI Yong-feng, associate professor. Research field: resource and environment economic evaluation and financial management. E-mail address: sxlyf01@163.com.