Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (1): 180-185.doi: 10.11924/j.issn.1000-6850.2014-1681

Special Issue: 资源与环境 农业生态 耕地保护

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Evaluation of Eco-system Services Value Based on Land Remediation in Mining Subsidence Area

Yan Dabin1,2, Tian Xiaosong1,2, Zhou Chunrong1,2, Tan Xianlong1,2, Zheng Jiebing1,2   

  1. 1Chongqing Key Laboratory of Exogenic Mineralization and Mine Environment, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042;2Chongqing Research Center of State Key Laboratory of Coal Resource and Safe Mining, Chongqing 400042)
  • Received:2014-06-14 Revised:2014-06-14 Accepted:2014-08-18 Online:2015-03-18 Published:2015-03-18

Abstract: To analyze land-use and damage in coal mining subsidence area, taking mining subsidence area as the research object, ecosystem services value (ESV) was used to evaluate the results of land remediation. The results of land remediation showed that cultivated land area was increased from 220.24 to 311.08 hm2 by land remediation projects. The ESV had a positive effect with an increasing tendency from 348.03×104 to 356.67×104 yuan/a on the regulation and remediation in the study area. Changes of ecosystem services value functions were different. Climate regulation, water conservation, waste treatment, food production and raw materials were positive. And temperature regulation, soil formation and protection, biodiversity conservation and entertainment culture were negative. The land remediation played a key role in increasing the efficiency of cultivation in the field, improving agricultural infrastructure conditions and further raising the social economic and ecological benefits.