聚焦陆地生态系统碳循环对大气CO₂浓度升高、气候变暖、氮沉降变化等代表性全球变化事件的响应及其机制，主要取得三方面的学术成果：（1）在大气CO₂浓度升高对陆地碳汇影响方面，构建植被-土壤碳库周转理论模型，提升陆地生态系统过程模型模拟结果与CO₂加富实验观测结果的可比性，定量揭示了1960年代以来大气CO₂浓度升高对北温带和全球陆地生态系统碳汇变化的影响，指出碳-氮循环耦合过程模型低估了大气CO₂浓度升高对陆地生态系统碳汇的促进作用（发表于Nature Geoscience）。（2）在气候变暖对陆地碳循环影响方面，基于遥感数据、大气反演数据等，全景式评估了地球系统模型中陆地生态系统碳循环对气候波动敏感性的季节分异及其空间格局现状，并发现模型中陆地生态系统固碳速率对温度年际波动的敏感性未来发生变化，且模型间的差异主要由植物碳吸收过程主导（发表于Journal of Climate、Journal of Geophysical Research-Biogeosciences）。（3）在氮沉降变化对陆地碳循环影响方面，基于原位观测揭示青藏高原区域尺度无机氮湿沉降量、空降格局和来源；采用野外控制实验定量阐明了高寒草原植物生长特征随氮沉降增加的非线性变化规律，发现氮沉降增加促进高寒草原群落水平植物碳吸收，但导致豆科植物改变氮吸收策略：从以生物固氮为主转变为直接吸收可利用氮为主（发表于Atmospheric Chemistry and Physics、Plant and Soil）。

采用模型、控制实验、地面调查、遥感等手段研究高寒生态系统碳循环对全球变化的响应及其机制。欢迎生态学、地理信息系统、地理学、遥感等相关专业背景的同学报考。

071300-生态学

高寒生态系统碳循环与全球变化

2008-09--2014-06   中国科学院青藏高原研究所   博士
2004-09--2008-06   河南理工大学   本科

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[1] He, Yue, Peng, Shushi, Liu, Yongwen, Li, Xiangyi, Wang, Kai, Ciais, Philippe, Arain, M Altaf, Fang, Yuanyuan, Fisher, Joshua B, Goll, Daniel, Hayes, Daniel, Huntzinger, Deborah N, Ito, Akihiko, Jain, Atul K, Janssens, Ivan A, Mao, Jiafu, Campioli, Matteo, Michalak, Anna M, Peng, Changhui, Penuelas, Josep, Poulter, Benjamin, Qin, Dahe, Ricciuto, Daniel M, Schaefer, Kevin, Schwalm, Christopher R, Shi, Xiaoying, Tian, Hanqin, Vicca, Sara, Wei, Yaxing, Zeng, Ning, Zhu, Qiuan. Global vegetation biomass production efficiency constrained by models and observations. GLOBAL CHANGE BIOLOGY[J]. 2020, 第 3 作者26(3): 1474-1484, http://dx.doi.org/10.1111/gcb.14816.
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[9] XuRi, Wang, Yuesi, Wang, Yinghong, Niu, Haishan, Liu, Yongwen, Zhuang, Qianlai. Estimating N2O emissions from soils under natural vegetation in China. PLANTANDSOIL[J]. 2019, 第 5 作者434(1-2): 271-287, http://dx.doi.org/10.1007/s11104-018-3856-6.
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[16] Wei, Da, XuRi, Liu, Yongwen, Wang, Yinghong, Wang, Yuesi. Three-year study of CO2 efflux and CH4/N2O fluxes at an alpine steppe site on the central Tibetan Plateau and their responses to simulated N deposition. GEODERMA[J]. 2014, 第 3 作者232: 88-96, http://dx.doi.org/10.1016/j.geoderma.2014.05.002.
[17] 刘永稳. 青藏高原氮湿沉降现状及典型放牧草原对多梯度氮施肥的响应. 2014, 第 1 作者http://ir.itpcas.ac.cn/handle/131C11/2897.
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[19] Liu, Bin, Kang, Shichang, Sun, Jimin, Zhang, Yulan, Xu, Ri, Wang, Yongjie, Liu, Yongwen, Cong, Zhiyuan. Wet precipitation chemistry at a high-altitude site (3,326 m a.s.l.) in the southeastern Tibetan Plateau. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH[J]. 2013, 第 7 作者20(7): 5013-5027, http://www.irgrid.ac.cn/handle/1471x/965663.
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