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2021
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标题：Permafrost nitrogen status and its determinants on the Tibetan Plateau论文id：https://doi.org/10.1111/gcb.15205原名：Permafrost nitrogen status and its determinants on the Tibetan Plateau译名：青藏高原多年冻土氮素状况及其决定因素期刊：Global Change BiologyIF：10.863（2020）发表时间：2020年6月7日第一作者: Chao Mao通讯作者：杨元和主要单位：中国科学院大学，中国科学院植物研究所摘要：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...