Evaluation of ecological restoration effect in coal mining area based on ecosystem service function
ZHANG Kai
MA Tao
CHI Ziyun
PAN Shanshan
HAN Zhi
LIU Hailong
Abstract：The assessment of ecological restoration effects in coal mining area needs to break through the limitations of traditional single indicators and construct a scientific evaluation system from a comprehensive perspective of improving ecosystem service functions.Taking the Buertai mining field in Ejin Horo Banner as the research object,based on the cur-rently commonly used ecosystem service material quantity assessment model and value calculation method,combined with GIS spatial analysis,the material quantity and value of the coal mining area(Buertai mining field)and the non-coal mining area(the area of Ejin Horo Banner except Buertai mining field)before and after ecological restoration were quanti-fied.And explore the impact of land use and vegetation coverage on ecosystem services,and evaluate the ecosystem res-toration effect of the Buertai mining field.The results show that:① The average material quantity of soil conservation per area in the Buertai mining field in 2005,2010,2015 and 2020 was 17.7,9.02,20.31 and 26.96 t/hm2 respectively;The av-erage material quantity of windbreak and sand fixation per area was 45.77,43.3,46.06 and 50.37 t/hm2 respectively.The material quantity of carbon storage per area was 9.805 4,9.795,9.805 9 and 9.814 t/hm2 respectively.During this period,there was a trend of first decreasing and then increasing.And they all show a positive correlation with grassland,forest land and vegetation coverage,and a negative correlation with construction land and unused land.② The average of the total value of ecosystem services per area in the Buertai mining field in 2005,2010,2015 and 2020 was 1 772.91,1 342.98,1 825.54 and 2 154.98 yuan/hm2 respectively.Generally,it showed a trend of first decreasing and then increas-ing,which was consistent with the changing trend of the quality of ecosystem services.③ The soil conservation and wind-break and sand fixation functions of the Buertai mining field gradually returned to a level close to that of the non-coal min-ing area after 2010,indicating a good ecological restoration effect.The carbon storage is still lower than that in non-coal mining area,indicating that the protection and restoration of the coal mining area ecosystem need to be continuously strengthened.The research results have important reference significance for regional ecological restoration.
Keywords：coal miningecosystem servicesmaterial quantityvalueecological restoration
Publication Date：2025-06-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：13( 15-27 )