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Soil fungal diversity is an important part of the earth's biodiversity, they are not only the "main force" of plant residues and apoptosis degradation, but also through symbonal or pathogenic forms a very close relationship with plants.
Previous studies have shown that the coupling relationship between soil fungal diversity and plant diversity is not consistent from the local to the global scale, especially in high-cold ecosystems where the relationship between fungal diversity and plant diversity and plant productivity is unclear.
The team of Yan Haiyan of Nanjing Soil Research Institute of the Chinese Academy of Sciences studied the diversity of soil fungi and their community composition in the high-cold grasslands of the Qinghai-Tibet Plateau, focusing on the coupling relationship between soil fungi and above-ground plants in spatial distribution.
results show that alpha diversity and beta diversity of soil fungi show a strong coupling with alpha diversity and beta diversity of plants above ground.
multi-linear regression model, partial-least-squares regression model and variance decomposition analysis revealed the direct driving effect of plant diversity on soil fungal diversity, but the effect of plant productivity on fungal diversity was not obvious.
This study points out that above-ground plant diversity is the primary factor restricting soil fungal diversity, in addition, soil carbon-nitrogen ratio, solubility organic carbon and total soil phosphorus also have a significant impact on soil fungal diversity, the results of China's high-cold grassland soil fungal diversity protection, fungal resources development and utilization has a certain scientific significance.
the study was published in The New Phytologist.
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