煤田地质与勘探2025，Vol.53Issue(10)：33-44,12.DOI:10.12363/issn.1001-1986.25.06.0414
黄河中游黄土采煤沉陷对坡面水土流失经济损失的影响规律
Influence patterns of coal mining-induced subsidence on economic losses from soil erosion of loess slopes in the middle reaches of the Yellow River
摘要
Abstract
[Background]Quantitative assessment of economic losses from soil erosion on subsidence slopes in coal mining-induced subsidence areas can offer a critical basis for formulating scientific economic compensation standards while also laying a solid foundation for efficient governance.[Methods]This study investigated the subsidence slopes with different morphologies in the typical loess area subjected to coal mining-induced subsidence in northern Shaanxi Province.Using methods including field sampling,laboratory tests,and environmental economics analysis,this study constructed an index system for the quantitative assessment of economic losses from soil erosion on coal mining-in-duced subsidence slopes and revealed the variation patterns of such economic losses.[Results and Conclusions]An in-dex system was constructed for the quantitative assessment of economic losses from soil erosion on coal mining-in-duced subsidence slopes.This system included four subsystems(i.e.,soil moisture loss,soil nutrient loss,land abandon-ment,and sediment loss)and eight quantitative assessment indices(i.e.,soil moisture,organic matter,alkali-hydrolyz-able nitrogen,available phosphorus,soil available potassium loss,abandoned land area,sediment retention,and sedi-ment deposition).With an increase in the slope gradient,the economic losses related to soil moisture,organic matter,al-kali-hydrolyzable nitrogen,and available potassium caused by soil erosion on subsidence slopes decreased significantly,whereas the economic loss from sediment retention increased significantly.The economic losses related to soil moisture,organic matter,alkali-hydrolyzable nitrogen,available phosphorus,and available potassium peaked in the case of straight slopes at angles of+≤5°.In contrast,the economic losses from land abandonment,sediment retention,and sedi-ment deposition reached the maximum in the case of straight slopes at angles of+＞15°.With an increase in the slope gradient,the total economic losses from soil erosion on straight and convex,composite,and concave subsidence slopes exhibited an initial rise followed by a decline,a continuous decrease,and first stabilization followed by an increase,re-spectively.The sum of the economic losses from sediment retention,soil organic matter loss,and land abandonment ac-counted for 91.69％of the total economic losses from soil erosion on subsidence slopes.Therefore,the three indices should be highlighted in the efficient management and economic compensation after soil erosion on subsidence slopes.Overall,the results of this study provide a scientific basis for the precise management of soil erosion in the coal mining-induced subsidence areas in the middle reaches of the Yellow River.关键词
水土流失/经济损失/影响规律/采煤沉陷/坡面尺度/黄河中游Key words
soil erosion/economic loss/influence pattern/coal mining-induced subsidence/slope scale/middle reaches of the Yellow River分类
资源环境引用本文复制引用
宋世杰,李源红,王艺,刘露,田雨,谈庆钰..黄河中游黄土采煤沉陷对坡面水土流失经济损失的影响规律[J].煤田地质与勘探,2025,53(10):33-44,12.基金项目
深部煤炭安全开采与环境保护全国重点实验室开放课题(HNKY2024YB402) （HNKY2024YB402）
陕西省水利厅科技揭榜挂帅攻关突破项目(2025slkj-07) （2025slkj-07）
咸阳市重点研发计划项目(L2024-ZDYF-ZDYF-SF-0069) （L2024-ZDYF-ZDYF-SF-0069）
