干旱区生态环境知识资源中心(Arid): East Asian summer monsoon substantially affects the inter-annual variation of carbon dioxide exchange in semi-arid grassland ecosystem in Loess Plateau

Arid

DOI	10.1016/j.agee.2018.11.016
	East Asian summer monsoon substantially affects the inter-annual variation of carbon dioxide exchange in semi-arid grassland ecosystem in Loess Plateau
	Yang, Fulin 1,2; Zhang, Qiang2,3 ; Zhou, Jing 4; Yue, Ping 2; Wang, Runyuan 2; Wang, Sheng 2
通讯作者	Yang, Fulin ; Zhang, Qiang
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN	0167-8809
EISSN	1873-2305
出版年	2019
卷号	272 页码:218-229
英文摘要	The net ecosystem CO2 exchange (NEE) of a semi-arid grassland on the boundary area of the East Asian summer monsoon (EASM) was measured continuously by eddy covariance technology in the Loess Plateau from 2007 to 2012. The grassland ecosystem was a weak carbon source with a mean of 17.1 +/- 12.1 g C m(-2) year(-1) during the measure period. The inter-annual variability in NEE was significantly related to the annual precipitation amount. The EASM played an essential role in the CO2 exchange of grassland at the boundary region of monsoon thought dominating climatic variables, such as the annual precipitation amount and seasonal drought. Drought stress suppressed gross primary productivity (GPP) more than ecosystem respiration (R-eco). Soil moisture reduction could result in sensitivity weaker of R-eco dependence to soil temperature (T-s), and GPP estimated by R-eco-T-s exponential growth function might be overestimated under severe soil drought when high T-s. Additionally, warmer spring has been found to be able to enhance the grassland's carbon uptake, and compensate for the reductions induced by the summer drought. Our results contribute to understanding of the specific driving mechanism for inter-annual variability of carbon fluxes in the Loess Plateau, and enhancing the terrestrial ecosystem model's performance in carbon fluxes estimate under the drought stress environment.
英文关键词	Gross primary productivity Ecosystem respiration Precipitation variability Drought Warm spring
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000468247700023
WOS关键词	GAP FILLING STRATEGIES ; CO2 EXCHANGE ; PRIMARY PRODUCTIVITY ; ROOT RESPIRATION ; SEVERE DROUGHT ; FLUX DATA ; NET ; VARIABILITY ; FOREST ; CLIMATE
WOS类目	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214046
作者单位	1.Fujian Agr & Forestry Univ, Coll Anim Sci, Fuzhou 350002, Fujian, Peoples R China; 2.CMA, Inst Arid Meteorol, Key Open Lab Arid Climat Change & Disaster Reduct, Key Lab Arid Climat Change & Reducing Disaster Ga, Lanzhou 730020, Gansu, Peoples R China; 3.Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Gansu, Peoples R China; 4.Fujian Agr & Forestry Univ, Natl Engn Technol Res Ctr JUNCAO, Fuzhou 350002, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Yang, Fulin,Zhang, Qiang,Zhou, Jing,et al. East Asian summer monsoon substantially affects the inter-annual variation of carbon dioxide exchange in semi-arid grassland ecosystem in Loess Plateau[J]. 兰州大学,2019,272:218-229.
APA	Yang, Fulin,Zhang, Qiang,Zhou, Jing,Yue, Ping,Wang, Runyuan,&Wang, Sheng.(2019).East Asian summer monsoon substantially affects the inter-annual variation of carbon dioxide exchange in semi-arid grassland ecosystem in Loess Plateau.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,272,218-229.
MLA	Yang, Fulin,et al."East Asian summer monsoon substantially affects the inter-annual variation of carbon dioxide exchange in semi-arid grassland ecosystem in Loess Plateau".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 272(2019):218-229.