JOURNAL OF NATURAL RESOURCES ›› 2020, Vol. 35 ›› Issue (1): 68-81.doi: 10.31497/zrzyxb.20200107

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Spatio-temporal patterns of ecological capital under different mining intensities in an ecologically fragile mining area in Western China: A case study of Shenfu mining area

XIAO Wu1,2, ZHANG Wen-kai2,3, LYU Xue-jiao2, WANG Xin-jing4   

  1. 1. School of Public Affairs, Zhejiang University, Hangzhou 310029, China;
    2. Institute of Land Reclamation and Ecological Restoration, China University of Mining and Technology (Beijing), Beijing 100083, China;
    3. Shanxi Key Laboratory of Resources, Environment and Disaster Monitoring, Shanxi Coal Geology Geophysical Surveying Exploration Institute, Jinzhong 030600, Shanxi, China;
    4. North China University of Water Resources and Electric Power, Zhengzhou 450045, China
  • Received:2019-10-15 Revised:2019-11-29 Online:2020-01-28 Published:2020-01-28

Abstract:

Taking Shenfu mining area as an example, this paper selects the ecological environment and statistical data indicators such as land use, vegetation coverage, soil, and meteorology, and then using RS and GIS technology to build an ecosystem service remote sensing measurement and evaluation index system. On this basis, we assess the characteristics of changes in ecosystem services and the spatial and temporal distribution of the study area from 2005 to 2015, and further explore the impact and driving force analysis of ecosystem services under different mining intensities in the Shenfu mining area. The results show that: (1) The total ecosystem services in the study area in 2005, 2010 and 2015 were 1.598×1010 yuan, 1.905×1010 yuan and 2.134×1010 yuan, respectively, showing an increasing trend yearly. (2) The proportion of soil and water conservation value is the largest in ecosystem service functions. The per unit area of grassland has the highest ecosystem service value. Cultivated land and grassland ecosystems have contributed the most ecosystem service value to the region. (3) The distribution of ecosystem services in the study area shows a gradual decrease from northeast to southwest. The growth and changes of ecosystem services under different mining intensities are similar. The impact of coal mining activities on the ecological environment in the study area is generally increasing, and the overall situation is relatively stable. The driving analysis of changes in ecosystem services shows that, in recent years, under the combined effect of relatively improved climate and artificial restoration, ecosystem services in Shenfu mining area did not significantly decrease. The land and space ecological restoration of such semi-arid ecologically fragile mining areas is suitable to avoid large-scale and high-intensity soil and water disturbance governance through active "protective development" and "artificial induction + natural restoration". Through moderate human intervention, the function of ecosystem services in this region is guaranteed and maintained. The research results can well reflect the quality of the regional ecological environment and its changes, and can provide an important basis for regional sustainable development evaluation and ecological environment construction planning.

Key words: Shenfu mining area, quantitative remote sensing assessment, ecosystem services, mining intensity, NPP