scholarly journals Distinct Soil Microbial Communities in habitats of differing soil water balance on the Tibetan Plateau

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Yuntao Li ◽  
Jonathan Adams ◽  
Yu Shi ◽  
Hao Wang ◽  
Jin-Sheng He ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Water Balance ◽  
Microbial Communities ◽  
Soil Water ◽  
Soil Microbial Communities ◽  
Soil Water Balance ◽  
The Tibetan Plateau ◽  
Soil Microbial

scholarly journals Effects of forest conversion on soil microbial communities depend on soil layer on the eastern Tibetan Plateau of China

PLoS ONE ◽  
2017 ◽  
Vol 12 (10) ◽  
pp. e0186053 ◽  
Author(s):  
Ruoyang He ◽  
Kaijun Yang ◽  
Zhijie Li ◽  
Martin Schädler ◽  
Wanqin Yang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Microbial Communities ◽  
Soil Layer ◽  
Soil Microbial Communities ◽  
Forest Conversion ◽  
Eastern Tibetan Plateau ◽  
Soil Microbial

scholarly journals Increased precipitation accelerates soil organic matter turnover associated with microbial community composition in topsoil of alpine grassland on the eastern Tibetan Plateau

2017 ◽  
Vol 63 (10) ◽  
pp. 811-821 ◽  
Author(s):  
Conghai Han ◽  
Zongli Wang ◽  
Guicai Si ◽  
Tianzhu Lei ◽  
Yanli Yuan ◽  
...  
Keyword(s):  
Climate Change ◽  
Organic Matter ◽  
Soil Organic Matter ◽  
Tibetan Plateau ◽  
Microbial Communities ◽  
Turnover Rate ◽  
Soil Microbial Communities ◽  
Alpine Grassland ◽  
The Tibetan Plateau ◽  
Soil Organic Matter Turnover

Large quantities of carbon are stored in alpine grassland of the Tibetan Plateau, which is extremely sensitive to climate change. However, it remains unclear whether soil organic matter (SOM) in different layers responds to climate change analogously, and whether microbial communities play vital roles in SOM turnover of topsoil. In this study we measured and collected SOM turnover by the 14C method in alpine grassland to test climatic effects on SOM turnover in soil profiles. Edaphic properties and microbial communities in the northwestern Qinghai Lake were investigated to explore microbial influence on SOM turnover. SOM turnover in surface soil (0–10 cm) was more sensitive to precipitation than that in subsurface layers (10–40 cm). Precipitation also imposed stronger effects on the composition of microbial communities in the surface layer than that in deeper soil. At the 5–10 cm depth, the SOM turnover rate was positively associated with the bacteria/fungi biomass ratio and the relative abundance of Acidobacteria, both of which are related to precipitation. Partial correlation analysis suggested that increased precipitation could accelerate the SOM turnover rate in topsoil by structuring soil microbial communities. Conversely, carbon stored in deep soil would be barely affected by climate change. Our results provide valuable insights into the dynamics and storage of SOM in alpine grasslands under future climate scenarios.

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