Physical and chemical properties of soil at different mining subsidence areas in windy and sandy regions
In order to research the effect of mining subsidence on soil physical and chemical properties, the subsidence areas of Da Liuta mining district were divided into pelvic floor area and marginal area.The results showed that: 1) The influence of mining subsidence on soil physical properties had obvious zoning characteristics, the influence on marginal zone was greater than pelvic floor area.Soil moisture content, bulk density, porosity in pelvic area showed a self-recovery phenomenon la after mining, while not in marginal area.The influence of mining subsidence on physical properties of topsoil were higher than those of deep soil, 2) The influence of mining subsidence on soil chemical properties was relative slight and had partition feature, the influence on marginal zone was greater than pelvic floor area.Mining subsidence reduced the content of soil total nitrogen and available potassium, but had no effect on soil available phosphorus or organic matter.
Y.Rong Z.Q.Hu Y.J.Wu Y.M.Yuan
Institute of Land Reclamation and Ecological Restoration, China University of Mining and Technology,Beijing, China
国际会议
The 2nd International Symposium on Land Reclamation and Ecological Restoration (第二届国际土地复垦与生态修复学术研讨会)
西安
英文
349-355
2017-10-20（万方平台首次上网日期，不代表论文的发表时间）