Journal of Ecology and Rural Environment ›› 2018, Vol. 34 ›› Issue (8): 692-699.doi: 10.11934/j.issn.1673-4831.2018.08.004

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Vegetation Restoration With Moderate Human Intervention and Regulation in the Daliuta Coal Mine Area

YU Hao-chen, MU Shou-guo, WANG Xiao-yu, LEI Ke-yu   

  1. School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China
  • Received:2018-03-19 Online:2018-08-25 Published:2018-08-23

Abstract:

In arid and semi-arid coal mine areas, the environment is usually fragile and vegetation recovery is difficult with a long recovery cycle. It is important to study the role of moderate human intervention and regulation in the process of vegetation recovery in such areas. In the case study of the Daliuta coal mine area, seven remote sensing images acquired during 1988-2016 were interpreted for the vegetation growth. The locations of samples at different human intervention levels (Ⅰ-Ⅵ) were determined based on the situation of planted Salix psammophila, and the trend of vegetation coverage was compared with contrasting intervention to model vegetation restoration for coal mine areas with human intervention and regulation. The error coefficient was also calculated to assess the validity of the model. Results show that:(1) The average EC was -0.12% while the absolute average EC was below 5.80%, which proves that the model is acceptable and valid. (2) The intervention levels of Ⅳ (33.54%) and Ⅲ (33.45%) approached the T value thresholds (35%) faster. When the area for rows of Salix psammophila accounted for 15% to 25%, the vegetation restoration reached optimal conditions quickly. (3) The scattered distribution of the T value was more intensive and the stability of vegetation restoration was higher under the medium intervention (Ⅲ and Ⅳ) in the period of 1988-2016. (4) Human intervention mostly occurred near the areas with human activities, and almost did not exist in remote locations. Based on the results, it is proposed to implement the Ⅲ level intervention for vegetation restoration. The study provides a theoretical basis for low-cost and high-efficiency vegetation restoration in coal mine areas.

Key words: vegetation restoration, human intervention, moderate, Daliuta coal mine area

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