Varied soil liable organic carbon contents among reclamation patterns in Pingshuo opencast coal mine, China
Six types of reclaimed forest stands (three types of monoculture forests and three types of mixed forests) were identified in Pingshuo opencast coal mine, China, to determine Total Organic Carbon (TOC) and Soil Liable Organic Carbon (SLOC) in reclaimed RMSs.Adjacent, unreclaimed plot (UR) was selected as references as well.The results showed that after 21-year reclamation, concentrations of TOC and SLOC varied among forests, among which mixed forests had the highest fractions of TOC and SLOC concentrations.Contents of TOC and SLOC were observed decreased as soil depth increased.At the same depth, the Efficient Ratio (ER) of three SLOC varied in the order low SLOC (16.35-24.75%) > middle SLOC (4.14-12.15%) > high SLOC (0.12-1.37%).Carbon Management Index (CMI) varied significantly among forests as well.Overall, TOC and SLOC could be significantly improved after reclamation, and mixed forests especially R.pseudoacacia-P.tabulaeformis could be the most effective reclamation pattern.
Soil liable organic carbon Opencast coal mine Reclamation Pingshuo
Y.Yuan Z.Q.Zhao Y.Z.Wang P.T.Zhu Y.Chen S.Y.Niu
School of Land Science and Technology, China University of Geosciences, Beijing, P.R.China School of Land Science and Technology, China University of Geosciences, Beijing, P R.China;Key Labor
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
277-280
2017-10-20（万方平台首次上网日期，不代表论文的发表时间）