作者：
發(fā)布時間：
2021
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08
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20
點擊次數(shù)：
0
標(biāo)題：Permafrost nitrogen status and its determinants on the Tibetan Plateau論文id：https://doi.org/10.1111/gcb.15205原名：Permafrost nitrogen status and its determinants on the Tibetan Plateau譯名：青藏高原多年凍土氮素狀況及其決定因素期刊：Global Change BiologyIF：10.863（2020）發(fā)表時間：2020年6月7日第一作者: Chao Mao通訊作者：楊元和主要單位：中國科學(xué)院大學(xué)，中國科學(xué)院植物研究所摘要：It had been suggested that permafrost thaw could promote frozen nitrogen (N) release and modify microbial N transformation rates, which might alter soil N availability and then regulate ecosystem functions. However, the current understanding of this issue is confined to limited observations in the Arctic permafrost region, without any systematic measurements in other permafrost regions. Based on a large-scale field investigation along a 1,000 km transect and a laboratory incubation experiment with a 15N pool dilution approach, this study provides the comprehensive evaluation of the permafrost N status, including the available N content and related N transformation rates, across the Tibetan alpine permafrost region. In contrast to the prevailing view, our results showed that the Tibet...