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[1]LIU Mei-ying,GAO Yong,WANG Ji,et al.Variation of Soil Carbon and Nitrogen Contents in the Reclamation of Coal Mine Area[J].Research of Soil and Water Conservation,2013,20(01):94-97,101.

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Variation of Soil Carbon and Nitrogen Contents in the Reclamation of Coal Mine Area

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 01 Page number: 94-97,101 Column: Public date: 2013-02-28

Title:: Variation of Soil Carbon and Nitrogen Contents in the Reclamation of Coal Mine Area

Author(s):: LIU Mei-ying¹, GAO Yong¹, WANG Ji¹, JIN Yong-chang², GONG Ping¹; 1. College of Ecology and Environmental Science, Inner Mongolia Agricultural University, Hohhot 010019, China;
2. Information and Network Center, Inner Mongolia Agricultural University, Hohhot 010018, China

Keywords:: coal mining area; reclamation; carbon and nitrogen

CLC:: S153.6⁺1

DOI:: -

Abstract:: In order to address the effect of reclamation on soil organic carbon and nitrogen contents, the variation of organic matter, total nitrogen, available nitrogen and the ratios of C/N in soil at Shengfudongsheng reclamation of coal mine area were investigated. Furthermore, the correlation between organic matter and nitrogen was analyzed. The results showed that: (1) soil organic matter content in 20—40 cm layer was lower than that in 0—20 cm layer, indicating that the distribution of soil organic matter was not balanced. Soil organic matter content in reclamation area significantly increased and C/N decreased compared to the original soil, which was of great benefit to the accumulation of available nitrogen; (2) total nitrogen and available nitrogen in reclamation area were significantly higher than that of none reclaimed soil. Soil available nitrogen in 20—40 cm layer was significantly lower than that of 0—20 cm soil layer in reclamation area. Potential of nitrogen supplying was greatly improved after reclamation; (3) a significantly positive linear correlation was observed among soil organic matter, total nitrogen content and available nitrogen content. Overall, the research provides a basic information for the evaluation of reclamation and instruction to the reclaimation.

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