期刊
SOIL BIOLOGY & BIOCHEMISTRY
卷 86, 期 -, 页码 1-4出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.soilbio.2015.03.008
关键词
Mycorrhizas; Indicator species; Maize; Grasslands; Mutualistic quality
类别
资金
- National Natural Science Foundation of China [41071178, 41371264]
- Chinese Academy of Sciences [XDB15030100, STSN-21-04]
- Ministry of Environmental Protection, P.R. China
- Deutsche Forschungsgemeinschaft [RI 1815/10-1]
Agriculture often leads to altered composition and reduced diversity of arbuscular mycorrhizal fungal (AMF) communities compared to natural grassland systems. However, the ecology of taxa that are lost in this transition has thus far not been well characterized. In this study we found that reduced or lost AMF taxa in farmlands were significantly stronger correlated with soil N:P ratio than a randomly sampled community; this indicates that taxa that prevail at high N:P ratio in grasslands are the ones most sensitive to agriculture. As a high N:P environment is also commonly argued to impose the highest AMF benefit to plants, the observation that those taxa are lost could indicate that agricultural fields are left with communities of reduced symbiotic quality. (C) 2015 Elsevier Ltd. All rights reserved.
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