干旱区生态环境知识资源中心(Arid): Long-Term Warming and Nitrogen Addition Have Contrasting Effects on Ecosystem Carbon Exchange in a Desert Steppe

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DOI	10.1021/acs.est.0c06526
	Long-Term Warming and Nitrogen Addition Have Contrasting Effects on Ecosystem Carbon Exchange in a Desert Steppe
	Wu, Qian; Ren, Haiyan; Bisseling, Ton; Chang, Scott X.; Wang, Zhen; Li, Yuanheng; Pan, Zhanlei; Liu, Yinghao; Cahill, James F., Jr.; Cheng, Xu; Zhao, Mengli; Wang, Zhongwu; Li, Zhiguo; Han, Guodong
通讯作者	Han, GD (corresponding author), Inner Mongolia Agr Univ, Coll Grassland Resources & Environm,Inner Mongoli, Key Lab Forage Cultivat Proc & High Efficient Uti, Key Lab Grassland Resources,Minist Educ,Minist Ag, Hohhot 010011, Peoples R China.
来源期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN	0013-936X
EISSN	1520-5851
出版年	2021
卷号	55 期号:11 页码:7256-7265
英文摘要	Desert steppe, a unique ecotone between steppe and desert in Eurasia, is considered highly vulnerable to global change. However, the long-term impact of warming and nitrogen deposition on plant biomass production and ecosystem carbon exchange in a desert steppe remains unknown. A 12-year field experiment was conducted in a Stipa brevif lora desert steppe in northern China. A split-design was used, with warming simulated by infrared radiators as the primary factor and N addition as the secondary factor. Our long-term experiment shows that warming did not change net ecosystem exchange (NEE) or total aboveground biomass (TAB) due to contrasting effects on C-4 (23.4% increase) and C-3 (11.4% decrease) plant biomass. However, nitrogen addition increased TAB by 9.3% and NEE by 26.0% by increasing soil available N content. Thus, the studied desert steppe did not switch from a carbon sink to a carbon source in response to global change and positively responded to nitrogen deposition. Our study indicates that the desert steppe may be resilient to long-term warming by regulating plant species with contrasting photosynthetic types and that nitrogen deposition could increase plant growth and carbon sequestration, providing negative feedback on climate change.
英文关键词	C-3 and C-4 plants ecosystem CO2 flux ecosystem resilience global warming nitrogen deposition plant photosynthetic type
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000659374200007
WOS关键词	PLANT COMMUNITY ; CLIMATE-CHANGE ; PRECIPITATION CHANGE ; INNER-MONGOLIA ; CO2 EXCHANGE ; ELEVATED CO2 ; RESPONSES ; SOIL ; RESPIRATION ; GRASSLAND
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS研究方向	Engineering ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350163
作者单位	[Wu, Qian; Ren, Haiyan; Bisseling, Ton; Pan, Zhanlei; Zhao, Mengli; Wang, Zhongwu; Li, Zhiguo; Han, Guodong] Inner Mongolia Agr Univ, Coll Grassland Resources & Environm,Inner Mongoli, Key Lab Forage Cultivat Proc & High Efficient Uti, Key Lab Grassland Resources,Minist Educ,Minist Ag, Hohhot 010011, Peoples R China; [Bisseling, Ton; Cheng, Xu] Wageningen Univ & Res, Dept Plant Sci, Lab Mol Biol, 1, NL-6708 PB Wageningen, Netherlands; [Chang, Scott X.] Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2E3, Canada; [Chang, Scott X.] Zhejiang A&F Univ, State Key Lab Subtrop Silviculture, Hangzhou 311300, Peoples R China; [Wang, Zhen; Li, Yuanheng; Liu, Yinghao] Chinese Acad Agr Sci, Inst Grassland Res, Hohhot 010010, Peoples R China; [Cahill, James F., Jr.] Univ Alberta, Dept Biol Sci, Edmonton, AB T6G 2E9, Canada
推荐引用方式 GB/T 7714	Wu, Qian,Ren, Haiyan,Bisseling, Ton,et al. Long-Term Warming and Nitrogen Addition Have Contrasting Effects on Ecosystem Carbon Exchange in a Desert Steppe[J],2021,55(11):7256-7265.
APA	Wu, Qian.,Ren, Haiyan.,Bisseling, Ton.,Chang, Scott X..,Wang, Zhen.,...&Han, Guodong.(2021).Long-Term Warming and Nitrogen Addition Have Contrasting Effects on Ecosystem Carbon Exchange in a Desert Steppe.ENVIRONMENTAL SCIENCE & TECHNOLOGY,55(11),7256-7265.
MLA	Wu, Qian,et al."Long-Term Warming and Nitrogen Addition Have Contrasting Effects on Ecosystem Carbon Exchange in a Desert Steppe".ENVIRONMENTAL SCIENCE & TECHNOLOGY 55.11(2021):7256-7265.