Study on the Changes of the Amount of Microorganism and Microbial Biomass Carbon in Soil of Greenhouse Cropping |
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| Authors: | Wang Shan Li Tingxuan Zhang Xizhou Zhou Jianxin |
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| Institution: | (1College of Resources and Environment,Sichuan Agricultural University,Ya’an Sichuan 625014; 2Institute of Soil Science, Chinese Academy of Sciences, Nanjing Jiangsu 210008) |
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| Abstract: | The amounts of soil microorganism and microbial biomass carbon (biomass C) in different year's greenhouse cropping from Wenjiang and Shuangliu in Sichuan province were evaluated. The results showed that, in different years greenhouses cropping, the amounts of microorganism were 1.63 to3.05 folds higher than that in the open-field, and declined with years. The amount of bacteria to microorganism became higher with years, while the amounts of actinomyces and fungi to that one were lower, especially the later one were declined much faster than the former. Diversity indices of open-field were respectively 1.29, 2.28, 3.45 folds compared with three different year's greenhouse soil. Soil biomass C, organic carbon (organic C) and the ratio of biomass C to organic C all declined with years.It was faster of biomass C to indicate the change of soil quantity. |
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| Keywords: | Greenhouse soil Amount of microorganism Microbial biomass carbon Diversity index |
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