Progressive nitrogen limitation across the Tibetan alpine permafrost region
The 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 p...
Published in: | Nature Communications |
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ftchiacadscibcas:oai:ir.ibcas.ac.cn:2S10CLM1/18336 2023-05-15T17:55:53+02:00 Progressive nitrogen limitation across the Tibetan alpine permafrost region Kou, Dan Yang, Guibiao Li, Fei Feng, Xuehui Zhang, Dianye Mao, Chao Zhang, Qiwen Peng, Yunfeng Ji, Chengjun Zhu, Qiuan Fang, Yunting Liu, Xueyan Xu-Ri Li, Siqi Deng, Jia Zheng, Xunhua Fang, Jingyun Yang, Yuanhe 2020 http://ir.ibcas.ac.cn/handle/2S10CLM1/18336 https://doi.org/10.1038/s41467-020-17169-6 英语 eng NATURE PUBLISHING GROUP NATURE COMMUNICATIONS http://ir.ibcas.ac.cn/handle/2S10CLM1/18336 doi:10.1038/s41467-020-17169-6 cn.org.cspace.api.content.CopyrightPolicy@29e48b03 Multidisciplinary Sciences SOIL ORGANIC-CARBON MYCORRHIZAL FUNGI CLIMATE-CHANGE BIOMASS ALLOCATION USE EFFICIENCY TUNDRA AVAILABILITY ECOSYSTEM PRODUCTIVITY METAANALYSIS Science & Technology - Other Topics Article 期刊论文 2020 ftchiacadscibcas https://doi.org/10.1038/s41467-020-17169-6 2021-11-29T18:05:56Z The 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. Article in Journal/Newspaper permafrost Tundra Institute of Botany: IBCAS OpenIR (Chinese Academy Of Sciences) Nature Communications 11 1 |
institution |
Open Polar |
collection |
Institute of Botany: IBCAS OpenIR (Chinese Academy Of Sciences) |
op_collection_id |
ftchiacadscibcas |
language |
English |
topic |
Multidisciplinary Sciences SOIL ORGANIC-CARBON MYCORRHIZAL FUNGI CLIMATE-CHANGE BIOMASS ALLOCATION USE EFFICIENCY TUNDRA AVAILABILITY ECOSYSTEM PRODUCTIVITY METAANALYSIS Science & Technology - Other Topics |
spellingShingle |
Multidisciplinary Sciences SOIL ORGANIC-CARBON MYCORRHIZAL FUNGI CLIMATE-CHANGE BIOMASS ALLOCATION USE EFFICIENCY TUNDRA AVAILABILITY ECOSYSTEM PRODUCTIVITY METAANALYSIS Science & Technology - Other Topics Kou, Dan Yang, Guibiao Li, Fei Feng, Xuehui Zhang, Dianye Mao, Chao Zhang, Qiwen Peng, Yunfeng Ji, Chengjun Zhu, Qiuan Fang, Yunting Liu, Xueyan Xu-Ri Li, Siqi Deng, Jia Zheng, Xunhua Fang, Jingyun Yang, Yuanhe Progressive nitrogen limitation across the Tibetan alpine permafrost region |
topic_facet |
Multidisciplinary Sciences SOIL ORGANIC-CARBON MYCORRHIZAL FUNGI CLIMATE-CHANGE BIOMASS ALLOCATION USE EFFICIENCY TUNDRA AVAILABILITY ECOSYSTEM PRODUCTIVITY METAANALYSIS Science & Technology - Other Topics |
description |
The 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. |
format |
Article in Journal/Newspaper |
author |
Kou, Dan Yang, Guibiao Li, Fei Feng, Xuehui Zhang, Dianye Mao, Chao Zhang, Qiwen Peng, Yunfeng Ji, Chengjun Zhu, Qiuan Fang, Yunting Liu, Xueyan Xu-Ri Li, Siqi Deng, Jia Zheng, Xunhua Fang, Jingyun Yang, Yuanhe |
author_facet |
Kou, Dan Yang, Guibiao Li, Fei Feng, Xuehui Zhang, Dianye Mao, Chao Zhang, Qiwen Peng, Yunfeng Ji, Chengjun Zhu, Qiuan Fang, Yunting Liu, Xueyan Xu-Ri Li, Siqi Deng, Jia Zheng, Xunhua Fang, Jingyun Yang, Yuanhe |
author_sort |
Kou, Dan |
title |
Progressive nitrogen limitation across the Tibetan alpine permafrost region |
title_short |
Progressive nitrogen limitation across the Tibetan alpine permafrost region |
title_full |
Progressive nitrogen limitation across the Tibetan alpine permafrost region |
title_fullStr |
Progressive nitrogen limitation across the Tibetan alpine permafrost region |
title_full_unstemmed |
Progressive nitrogen limitation across the Tibetan alpine permafrost region |
title_sort |
progressive nitrogen limitation across the tibetan alpine permafrost region |
publisher |
NATURE PUBLISHING GROUP |
publishDate |
2020 |
url |
http://ir.ibcas.ac.cn/handle/2S10CLM1/18336 https://doi.org/10.1038/s41467-020-17169-6 |
genre |
permafrost Tundra |
genre_facet |
permafrost Tundra |
op_relation |
NATURE COMMUNICATIONS http://ir.ibcas.ac.cn/handle/2S10CLM1/18336 doi:10.1038/s41467-020-17169-6 |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@29e48b03 |
op_doi |
https://doi.org/10.1038/s41467-020-17169-6 |
container_title |
Nature Communications |
container_volume |
11 |
container_issue |
1 |
_version_ |
1766163906409005056 |