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Progressive nitrogen limitation across the Tibetan alpine permafrost region
Kou, Dan1,2,3; Yang, Guibiao1; Li, Fei1; Feng, Xuehui1; Zhang, Dianye1; Mao, Chao1; Zhang, Qiwen1; Peng, Yunfeng; Ji, Chengjun4,5; Zhu, Qiuan6; Fang, Yunting7; Liu, Xueyan8; Xu-Ri; Li, Siqi10; Deng, Jia11; Zheng, Xunhua1,10; Fang, Jingyun4,5; Yang, Yuanhe1
AbstractThe ecosystem carbon (C) balance in permafrost regions, which has a global significance in understanding the terrestrial C-climate feedback, is significantly regulated by nitrogen (N) dynamics. However, our knowledge on temporal changes in vegetation N limitation (i.e., the supply of N relative to plant N demand) in permafrost ecosystems is still limited. Based on the combination of isotopic observations derived from a re-sampling campaign along a similar to 3000 km transect and simulations obtained from a process-based biogeochemical model, here we detect changes in ecosystem N cycle across the Tibetan alpine permafrost region over the past decade. We find that vegetation N limitation becomes stronger despite the increased available N production. The enhanced N limitation on vegetation growth is driven by the joint effects of elevated plant N demand and gaseous N loss. These findings suggest that N would constrain the future trajectory of ecosystem C cycle in this alpine permafrost region.
Subject AreaMultidisciplinary Sciences
Indexed BySCI
WOS Research AreaScience & Technology - Other Topics
WOS IDWOS:000546623500031
Publication PlaceLONDON
Funding OrganizationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31825006, 31988102, 91837312] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) programme [2019QZKK0106, 2019QZKK0302] ; Key Research Programme of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSW-SMC049]
Corresponding Author Emailyhyang@ibcas.ac.cn
OAgold, Green Published
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Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Eastern Finland, Dept Biol & Environm Sci, Biogeochem Res Grp, Kuopio 70210, Finland
4.Purdue Univ, Earth Atmospher & Planetary Sci, W Lafayette, IN 47907 USA
5.Peking Univ, Coll Urban & Environm Sci, Inst Ecol, Beijing 100871, Peoples R China
6.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China
7.Hohai Univ, Coll Hydrol & Water Resources, Nanjing 210098, Peoples R China
8.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang 110016, Peoples R China
9.Tianjin Univ, Sch Earth Syst Sci, Tianjin 300072, Peoples R China
10.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China
11.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China
12.Univ New Hampshire, Inst Study Earth Oceans & Space, Earth Syst Res Ctr, Durham, NH 03824 USA
Recommended Citation
GB/T 7714
Kou, Dan,Yang, Guibiao,Li, Fei,et al. Progressive nitrogen limitation across the Tibetan alpine permafrost region[J]. NATURE COMMUNICATIONS,2020,11(1).
APA Kou, Dan.,Yang, Guibiao.,Li, Fei.,Feng, Xuehui.,Zhang, Dianye.,...&Yang, Yuanhe.(2020).Progressive nitrogen limitation across the Tibetan alpine permafrost region.NATURE COMMUNICATIONS,11(1).
MLA Kou, Dan,et al."Progressive nitrogen limitation across the Tibetan alpine permafrost region".NATURE COMMUNICATIONS 11.1(2020).
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