水土保持研究2025，Vol.32Issue(2)：198-206,9.DOI:10.13869/j.cnki.rswc.2025.02.025
不同材料覆盖对高寒矿区扰动界面土壤蒸发特性的影响
Effect of different mulching materials on soil evaporation characteristics of disturbed interface in alpine mining area
摘要
Abstract
[Objective]The purposes of this study are to investigate the permeability of different inorganic porous materials and the influence of ground mulch on soil evaporation,and to provide a certain basis for solving the problems of lower water infiltration and increase of evapotranspiration in permafrost areas caused by the exploitation of mineral resources in permafrost regions.[Methods]Eight kinds of inorganic porous materials were used as research objects to analyze the differences in their basic physical properties,such as microstructure and reflection characteristics.Three rainfall intensities were set to study the permeability of the materials under different thicknesses.Meanwhile,evaporation tests were carried out to investigate the effects of different mulching materials on the characteristics of soil moisture evaporation.[Results](1)The basic physical properties of the eight materials,such as dry bulk,wet bulk weight,pore properties and reflectance,varied significantly(p＜0.01),among which glass pumice Ji,glass pumice J2 and ceramic aggregate had moderate aeration and water holding capacity.(2)In terms of water permeability,volcanic stone,maifanite,ceramic aggregate,glass pumice J1 and glass pumice J2 had better performance.Moreover,permeability of the material was significantly inversely proportional to thickness and proportional to the rainfall intensity(p＜0.01).(3)In terms of evaporation inhibition performance,glass pumice J1,glass pumice J2,ceramic aggregate,volcanic stone and expanded pearlite reduced the cumulative evaporation of soil significantly(p＜0.05).[Conclusion]The physical properties(microstructure,reflectivity,etc.)of different materials are significantly different.The three mulching materials of glass pumice J1,glass pumice J2 and ceramic aggregate can better inhibit the occurrence of soil evaporation than other materials,which can provide a material basis for the near-natural reconstruction of permafrost in alpine mining area.关键词
高寒矿区/冻土退化/透水性/无机多孔材料/蒸发抑制特性Key words
alpine mining area/permafrost degradation/permeability/inorganic porous material/evaporation inhibition property分类
农业科技引用本文复制引用
杨春艳,王小展,史常青,杨建英,孙智龙,邓莫楠..不同材料覆盖对高寒矿区扰动界面土壤蒸发特性的影响[J].水土保持研究,2025,32(2):198-206,9.基金项目
"十四五"国家重点研发计划项目"高寒矿区水源涵养功能恢复新型材料和冻土剖面近自然重构技术研发与试验示范"(2022YFF1302604) （2022YFF1302604）
