Pedosphere 20(3): 352--360, 2010
ISSN 1002-0160/CN 32-1315/P
©2010 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Relationship between microbial community and soil properties during natural succession of abandoned agricultural land |
JIA Guo-Mei 1,2, ZHANG Pei-Dong2,3, WANG Gang2, CAO Jing2, HAN Jing-Cheng1 and HUANG Ying-Ping1 |
1 College of Chemistry and Life Science, China Three Gorges Unversity, Yichang 443002 (China);
2 Key Laboratory of Arid and Grassland Ecology, School of Life Science, Lanzhou University, Lanzhou 730000 (China);
3 Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266071 (China) |
| ABSTRACT |
| The changes of microbial biomass carbon (MBC) and nitrogen (MBN) and microbial community in the topsoil of the abandoned agricultural land on the semi-arid Loess Plateau in China during the natural succession were evaluated to understand the relationship between microbial community and soil properties. MBC and MBN were measured using fumigation extraction, and microbial community was analyzed by the method of fatty acid methyl ester (FAME). The contents of organic C, total N, MBC, MBN, total FAME, fungal FAME, bacterial FAME and Gram-negative bacterial FAME at the natural succession sites were higher than those of the agricultural land, but lower than those of the natural vegetation sites. The MBC, MBN and total FAME were closely correlated with organic C and total N. Furthermore, organic C and total N were found to be positively correlated with fungal FAME, bacterial FAME, fungal/bacterial and Gram-negative bacterial FAME. Natural succession would be useful for improving soil microbial properties and might be an important alternative for sustaining soil quality on the semi-arid Loess Plateau in China. |
| Key Words: fatty acid methyl ester, microbial biomass, soil carbon, soil nitrogen |
| Citation: Jia, G. M., Zhang, P. D., Wang, G., Cao, J., Han, J. C. and Huang, Y. P. 2010. Relationship between microbial community and soil properties during natural succession of abandoned agricultural land. Pedosphere. 20(3): 352-360. |
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