气候变化领域集成服务门户(CCPortal): Altered trends in carbon uptake in China's terrestrial ecosystems under the enhanced summer monsoon and warming hiatus

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DOI	10.1093/nsr/nwz021
	Altered trends in carbon uptake in China's terrestrial ecosystems under the enhanced summer monsoon and warming hiatus
	He, Honglin; Wang, Shaoqiang; Zhang, Li; Wang, Junbang; Ren, Xiaoli; Zhou, Lei; Piao, Shilong; Yan, Hao; Ju, Weimin; Gu, Fengxue; Yu, Shiyong; Yang, Yuanhe; Wang, Miaomiao; Niu, Zhongen; Ge, Rong; Yan, Huimin; Huang, Mei; Zhou, Guoyi; Bai, Yongfei; Xie, Zongqiang; Tang, Zhiyao; Wu, Bingfang; Zhang, Leiming; He, Nianpeng; Wang, Qiufeng; Yu, Guirui
通讯作者	Yu, GR (通讯作者)
发表日期	2019
ISSN	2095-5138
EISSN	2053-714X
起始页码	505
结束页码	514
卷号	6 期号:3
英文摘要	The carbon budgets in terrestrial ecosystems in China are strongly coupled with climate changes. Over the past decade, China has experienced dramatic climate changes characterized by enhanced summer monsoon and decelerated warming. However, the changes in the trends of terrestrial net ecosystem production (NEP) in China under climate changes are not well documented. Here, we used three ecosystem models to simulate the spatiotemporal variations in China's NEP during 1982-2010 and quantify the contribution of the strengthened summer monsoon and warming hiatus to the NEP variations in four distinct climatic regions of the country. Our results revealed a decadal-scale shift in NEP from a downtrend of -5.95 Tg C/yr(2) (reduced sink) during 1982-2000 to an uptrend of 14.22 Tg C/yr(2) (enhanced sink) during 2000-10. This shift was essentially induced by the strengthened summer monsoon, which stimulated carbon uptake, and the warming hiatus, which lessened the decrease in the NEP trend. Compared to the contribution of 56.3% by the climate effect, atmospheric CO2 concentration and nitrogen deposition had relatively small contributions (8.6 and 11.3%, respectively) to the shift. In conclusion, within the context of the global-warming hiatus, the strengthening of the summer monsoon is a critical climate factor that enhances carbon uptake in China due to the asymmetric response of photosynthesis and respiration. Our study not only revealed the shift in ecosystem carbon sequestration in China in recent decades, but also provides some insight for understanding ecosystem carbon dynamics in other monsoonal areas.
关键词	INTERANNUAL VARIABILITY SEMIARID ECOSYSTEMS NITROGEN DEPOSITION FOREST ECOSYSTEMS INCREASING CO2 CLIMATE-CHANGE SEQUESTRATION IMPACTS BALANCE STORAGE
英文关键词	climate change; Asian summer monsoon; warming hiatus; biogeochemical modeling; ecosystem carbon dynamics
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000473767700024
来源期刊	NATIONAL SCIENCE REVIEW
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259649
推荐引用方式 GB/T 7714	He, Honglin,Wang, Shaoqiang,Zhang, Li,et al. Altered trends in carbon uptake in China's terrestrial ecosystems under the enhanced summer monsoon and warming hiatus[J]. 中国科学院青藏高原研究所,2019,6(3).
APA	He, Honglin.,Wang, Shaoqiang.,Zhang, Li.,Wang, Junbang.,Ren, Xiaoli.,...&Yu, Guirui.(2019).Altered trends in carbon uptake in China's terrestrial ecosystems under the enhanced summer monsoon and warming hiatus.NATIONAL SCIENCE REVIEW,6(3).
MLA	He, Honglin,et al."Altered trends in carbon uptake in China's terrestrial ecosystems under the enhanced summer monsoon and warming hiatus".NATIONAL SCIENCE REVIEW 6.3(2019).