干旱区生态环境知识资源中心(Arid): Drought-Induced Carbon and Water Use Efficiency Responses in Dryland Vegetation of Northern China

Arid

DOI	10.3389/fpls.2019.00224
	Drought-Induced Carbon and Water Use Efficiency Responses in Dryland Vegetation of Northern China
	Gang, Chengcheng 1,2,3,4; Zhang, Yi 2,3; Guo, Liang 1,2,3; Gao, Xuerui 1,2,3; Peng, Shouzhang 1,2,3; Chen, Mingxun 5; Wen, Zhongming 1,2,3
通讯作者	Wen, Zhongming
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2019
卷号	10
英文摘要	Given the context of global warming and the increasing frequency of extreme climate events, concerns have been raised by scientists, government, and the public regarding drought occurrence and its impacts, particularly in arid and semi-arid regions. In this paper, the drought conditions for the forest and grassland areas in the northern region of China were identified based on 12 years of satellite-based Drought Severity Index (DSI) data. The impact of drought on dryland vegetation in terms of carbon use efficiency (CUE) and water use efficiency (WUE) were also investigated by exploring their correlations with DSI. Results indicated that 49.90% of forest and grassland experienced a dry trend over this period. The most severe drought occurred in 2001. In general, most forests in the study regions experienced near normal and wet conditions during the 12 year period. However, grasslands experienced a widespread drought after 2006. The forest CUE values showed a fluctuation increase from 2000 to 2011, whereas the grassland CUE remained steady over this period. In contrast, WUE increased in both forest and grassland areas due to the increasing net primary productivity (NPP) and descending evapotranspiration (ET). The CUE and WUE values of forest areas were more sensitive to droughts when compared to the values for grassland areas. The correlation analysis demonstrated that areas of DSI that showed significant correlations with CUE and WUE were 17.24 and 10.37% of the vegetated areas, respectively. Overall, the carbon and water use of dryland forests was more affected by drought than that of dryland grasslands.
英文关键词	carbon use efficiency drought severity index dryland vegetation northern China water use efficiency
类型	Article
语种	英语
国家	Peoples R China ; USA
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000459652300001
WOS关键词	NET PRIMARY PRODUCTION ; 3-RIVER SOURCE REGION ; PRIMARY PRODUCTIVITY ; AGRICULTURAL DROUGHT ; INNER-MONGOLIA ; SEVERITY INDEX ; CLIMATE-CHANGE ; GLOBAL WATER ; MODIS ; DYNAMICS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215822
作者单位	1.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China; 2.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China; 3.Minist Water Resources, Yangling, Shaanxi, Peoples R China; 4.Auburn Univ, Sch Forestry & Wildlife Sci, Int Ctr Climate & Global Change Res, Auburn, AL 36849 USA; 5.Northwest A&F Univ, Coll Agron, Yangling, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Gang, Chengcheng,Zhang, Yi,Guo, Liang,et al. Drought-Induced Carbon and Water Use Efficiency Responses in Dryland Vegetation of Northern China[J]. 西北农林科技大学,2019,10.
APA	Gang, Chengcheng.,Zhang, Yi.,Guo, Liang.,Gao, Xuerui.,Peng, Shouzhang.,...&Wen, Zhongming.(2019).Drought-Induced Carbon and Water Use Efficiency Responses in Dryland Vegetation of Northern China.FRONTIERS IN PLANT SCIENCE,10.
MLA	Gang, Chengcheng,et al."Drought-Induced Carbon and Water Use Efficiency Responses in Dryland Vegetation of Northern China".FRONTIERS IN PLANT SCIENCE 10(2019).