Aggregate stability and organic carbon distribution in reconstruction soil filled with gangue from coal mining areas
Experimental site were selected from reclamation soil filled with coal gangue of two typical coal mining subsidence areas in Huainan, China.To discuss mechanical stability aggregate, water stable aggregates size distribution and soil organic carbon content in different coversoil thickness.Results showed that the composition proportion of the mechanical stable aggregate was in shape of W with decreasing size fraction, the percentage of size fraction >3.2 mm accounted the largest proportion and existed significant difference from that of other size fraction (P < 0.05), the water stable aggregate is similar to the mechanical stable aggregate.Mean weight diameter of soil water stable aggregate, the content of total soil organic carbon and each size fraction of Water-stable aggregate and aggregate-associated C in ecological remediation areas were all less than that of the control area.The thickness of 60-80 cm would promotes soil aggregate formation, the accumulation and stability of organic carbon.
Soil aggregate Soil organic carbon Reconstruction soil Coal mining subsidence areas Covering soil thickness
Z.Y.Hu X.Y.Chen M.Chen Y.Z.Zhou F.Wang
School of Earth and Environment, Anhui University of Science and Technology, Huainan, China School of Earth and Environment, Anhui University of Science and Technology, Huainan, China;Engineer
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
391-395
2017-10-20（万方平台首次上网日期，不代表论文的发表时间）