Analysis of index system and state of ecological storage of typical large open-pit mines in Eastern Inner Mongolia:taking Baorixile, Yinmin and Shengli No.1 Open-Pit Coal Mine as examples

被引：0
|
作者：
Zhao Y. [1 ]
Ji L. [2 ]
Dong J. [2 ]
Fang A. [2 ]
Cao Z. [3 ]
Zhang F. [4 ]
机构：
[1] Production Technology Department, Shenhua Baorixile Energy Corporation Limited, Hulunbuir
[2] School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou
[3] State Key Laboratory of Water Resources Protection and Utilization in Coal Mining, National Energy Group, Beijing
[4] CCTEG Ecological Environment Technology Co., Ltd., Beijing
来源：
Meitan Kexue Jishu/Coal Science and Technology (Peking) | 2022年 / 50卷 / 05期
关键词：
ecological cumulative effect; ecological storage; index system; open-pit coal mine; process analysis;
D O I：
10.13199/j.cnki.cst.2020-1671
中图分类号：
学科分类号：
摘要：
In order to study the ecological status of grassland mining area in different mining periods, three large-scale open-pit mines with similar natural conditions and mining status, including the Baorixile Open-pit Mine (20 years), Yimin Open-pit Mine (36 years), and Shengli No.1 Open-pit Mine (45 years), with different mining years were selected. On the basis of the preliminary delineation of the ecologically sensitive areas in each mining area, the ecological service value analysis and the ecological storage state, process, capacity, pattern and condition indexes were used to comprehensively evaluate and compare the ecological storage effects of each mining area. The results showed that:① the variation range of ecological service value in Baorixile, Yimin and Shengli No 1 mining areas was -4 212.19, 1 915.68 and -2 491.49 yuan / a, respectively. According to the ecological storage status index, the ecological service value per unit area of the mining area ecosystem of Baorixile, Yimin and Shengli No.1 open pit coal mine was degraded at a rate of 83.68, 75.38 and 48.01 yuan/ (hm2·a), respectively. ② The conversion rate of ecological storage in the three mines was negative, the ecosystem showed a process of conversion from high service function to low service function, and the ecological storage process showed a negative trend. The ecological storage capacity values of Baorixile, Yimin and Shengli No 1 open pit coal mine are -410,-310 yuan/ (hm2·a) and -240 yuan/ (hm2·a), respectively, among which Shengli No 1 mine had relatively good ecological storage capacity. The ecological storage pattern values of the three mines were close to each other. The ecological storage conditions of Baorixile, Yimin and Shengli No 1 open pit coal mine were 0.37%, 0.69% and 0.62%, respectively. ③ The comprehensive index of ecological storage effect showed that the comprehensive index of Yimin mine was relatively high at 4. 37, followed by Baorixile mine, and Shengli No 1 mine was relatively low at 1.65, indicating that land use had the least impact on regional ecological storage of Yimin mine and the largest impact on Shengli mine. The results are helpful to take measures to slow down the accumulation of ecological effects in mining areas and promote the coordinated development of coal mining and grassland ecology. © 2022 China Coal Society. All Rights Reserved.
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页码：271 / 290
页数：19
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