| Hunan Xinlong Mining Co.,Ltd.is a backbone enterprise of Shaoyang City and a leading enterprise of Xinshao County economy.Its Longshan mining area is rich in mineral resources and has great development potential,and with the rapid development of exploration technology and mining technology,the mining project brings great challenges to ecological environmental protection.Scientific and effective ecological restoration technology measures can better maintain the regional ecological balance,which is of great importance to improve the sustainable development of regional social economy.In this paper,the ecological service function is taken as the influencing factor of ecological restoration in the study area to provide a strong judgment basis for the determination of mine development and ecological restoration measures.Taking the Longshan mining area of Xinshao County Xinlong Mining Industry as the main research object,the habitat quality assessment method of InVEST model is applied,and the data of the three national land surveys,remote sensing image map interpretation data and socio-economic data are used as the main data to evaluate the ecological service function of the study area from 2015 to The habitat quality of ecological service functions in the study area from 2015 to 2020 was evaluated and visualized,and the value of ecological service functions of ecosystems in the study area was estimated at the same time.As a result of the study,the main conclusions of this paper are as follows.(1)Using the InVEST model,the habitat quality of the study area was evaluated:the overall habitat quality of the study area showed a slight trend of decreasing,and the underlying cause of its low habitat quality was the varying impact of mining production in the mine on the surrounding habitat types.If the degradation of habitat types,including tree woodland and bamboo woodland,tends to increase as the habitat quality decreases,this may lead to an increasing probability that the habitat quality in the study area will continue to decrease in the future.(2)The ecological service function value of the ecosystem in the study area was estimated:the ecological service function value of the study area in 2020,compared with the ecological service function value of the study area in 2015,has decreased.among the six types of ecological service values in the study area in 2015 and 2020,the ecological service value of the woodland ecosystem accounted for the largest proportion,and its generated ecological service value between 2015 and 2020 The ecological service value of the other five categories of ecosystems showed a small trend of increase or decrease between 2015 and 2020.It indicates that the continuous expansion of mining land in the study area during this period,the waste rock piles and tailing ponds have occupied the forest land in the study area to different degrees,which is the main reason for the decrease of the ecological service function value of the forest land ecosystem.The large and continuous development of mining has led to a large area of land breakage in the study area and a continuous decline in forest cover,resulting in a decrease in the value of ecological service functions in the study area.(3)Based on the evaluation results of the ecological service function of the study area,the problems of ecological restoration in the study area were analyzed,ecological restoration measures were optimized,ecological restoration targets and tasks were determined,and integrated ecological control of the study area was proposed;after the feasibility of land reclamation in the study area was analyzed and evaluated,engineering and technical measures and biochemical technical measures for land reclamation were proposed;suggestions to guarantee the implementation of ecological restoration technical measures were also proposed on this basis to promote the ecological construction of mine forests,increase forest cover,improve the habitat quality of the study area,and increase the ecological service value of the study area ecosystem. |
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