| Effects of intercropping herbages on carbon source metabolism of soil microbial community in sandy vineyard |
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| DOI：10.7606/j.issn.1000-7601.2017.02.40 |
| Key Words: herbage intercropping soil microbial functional diversity Biolog-Eco technology |
| Author Name | Affiliation | | SI Peng | Institute of Zhengzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, He'nan 450009, China | | YU Hui-li | Institute of Zhengzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, He'nan 450009, China | | GAO Deng-tao | Institute of Zhengzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, He'nan 450009, China | | SHAO Wei | Institute of Zhengzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, He'nan 450009, China | | QIAO Xian-sheng | Institute of Zhengzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, He'nan 450009, China | | CHEN Jin-yong | Institute of Zhengzhou Fruit Research, Chinese Academy of Agricultural Sciences, Zhengzhou, He'nan 450009, China |
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| Abstract: |
| In order to study the functional diversity of soil microbial community in vineyard intercropping with herbage, the Biolog-Eco technology was used to analyze the utilization features of carbon sources by microbial community, with clean cultivation as the control. The results revealed that the average well color development (AWCD) and diversity indices (Shannon-Wiener index, Simpson index and richness index) under herbage intercropping were significantly increased compared with the control, and they decreased as soil depth increasing, with the highest values in 0～20 cm soil layer under herbage intercropping. Additionally, the utilization intensity of 6 carbon substrates was enhanced by herbage intercropping, and the increase rate was ranked as: carboxylic acids＞phenolic acid＞amines＞carbohydrates＞amino acids＞polymer. The principal component analysis showed that samples of control and herbage intercropping were distributed in different zones, which meant that the function of soil microbial community was obviously altered by herbage intercropping. Carboxylic acids, carboh
ydrates and phenolic acids were the most sensitive carbon sources in the aspect of soil microbial metabolism induced by herbage intercropping. Overall, herbage intercropping could not only enrich the diversity of microbial community, but also improve its structure in sandy vineyard. |
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