矿业科学学报2026，Vol.11Issue(3)：522-532,11.DOI:10.19606/j.cnki.jmst.2025095
西部矿区微地形改造对土壤质量的影响及驱动分析
Impact of micro-topography reconstructions on soil quality and driving mechanisms in coal mining areas of western China
摘要
Abstract
Micro-topography ecological restoration is one of the important ways to improve the functions of degraded soil,but the driving mechanism of its improvement on soil quality remains unclear.To ex-plore the variation patterns of soil quality and its driving mechanisms under micro-topographic recon-structions,the physicochemical properties of the soil were measured and analyzed by taking the soil at a depth of 0-60 cm in a mining area in western China as the research object.A minimum data set meth-od was applied for comprehensive soil quality assessment,and random forest analysis was used to iden-tify the key driving factors of soil quality.Results indicate that compared with the original slope sur-face,significant changes in soil physicochemical properties under micro-topography reconstructions were observed,with increases in soil water content(SWC),pH,electrical conductivity(EC),total nitrogen(TN),total phosphorus(TP),soil organic matter(SOM),soil alkali-hydrolyzed nitrogen(SAN),and soil available phosphorus(SAP)contents,yet with a decrease in total kalium(TK)con-tent.Fish-scale pits showed higher content of SWC while horizontal trenches exhibited higher contents of TN,TP,SOM,SAN and SAP.The soil quality index(SQI)of both horizontal ditches and fish scale pits significantly increased.The driving factors of soil quality showed significant variations:fish-scale pits were dominated by TP,SWC and SOM,while horizontal trenches were driven by the synergistic effect of SOM,TP and SAP.This study provides a theoretical basis for the application of micro-topographic reconstructions in ecological restoration and soil improvement in coal mining areas in western China.关键词
微地形/土壤质量/关键驱动因子/鱼鳞坑/水平沟Key words
micro-topography/soil quality/key driving factors/fish-scale pit/horizontal trenchs分类
矿业与冶金引用本文复制引用
王顺洁,张凯,张嘉辰,邓旭,唐孟铎,刘海龙..西部矿区微地形改造对土壤质量的影响及驱动分析[J].矿业科学学报,2026,11(3):522-532,11.基金项目
国家重点研发计划(2022YFF1303304) （2022YFF1303304）
中央高校基本科研业务费、中国矿业大学(北京)博士研究生拔尖创新人才培育基金(BBJ2025059) （北京）
水利部重大科技项目(SKS-2022094) （SKS-2022094）
国家能源集团项目(GJNY-23-146) （GJNY-23-146）
