Plant Water Use Strategy in Response to Spatial and Temporal Variation in Precipitation Patterns in China: A Stable Isotope Analysis

doi:10.3390/f9030123

	Plant Water Use Strategy in Response to Spatial and Temporal Variation in Precipitation Patterns in China: A Stable Isotope Analysis
	Zhao, Ying 1,2; Wang, Li 1
刊名	FORESTS
	2018-03-01
卷号	9 期号:3 页码:21
关键词	stable isotope local meteoric water line (LMWL) plant main water source (PMWS) contribution of plant main water source (CPMWS) China
ISSN号	1999-4907
DOI	10.3390/f9030123
通讯作者	Wang, Li(wangli5208@nwsuaf.edu.cn)
英文摘要	Spatial and temporal variation in precipitation patterns can directly alter the survival and growth of plants, yet in China there is no comprehensive and systematic strategy for plant use based on the effects of precipitation patterns. Here, we examined information from 93 published papers (368 plant species) on plant xylem water stable isotopes (delta D and delta O-18) in China. The results showed that: (1) The slope of the local meteoric water line (LMWL) gradually increased from inland areas to the coast, as a result of continental and seasonal effects. The correlation between delta(D) and delta O-18 in plant stem water is also well fitted and the correlation coefficients range from 0.78 to 0.89. With respect to the soil water line, the delta O-18 values in relation to depth (0-100 cm) varied over time; (2) Plants' main water sources are largely affected by precipitation patterns. In general, plants prioritize the use of stable and continuous water sources, while they have a more variable water uptake strategy under drought conditions; (3) There are no spatial and temporal variations in the contribution of the main water source (p > 0.05) because plants maintain growth by shifting their use of water sources when resources are unreliable.
资助项目	National Natural Science Foundation of China[4177010434] ; National Natural Science Foundation of China[41390463] ; National Natural Science Foundation of China[41741002] ; National Key Research and Development Program of China[2016YFC0501604]
WOS关键词	SYLVESTRIS VAR. MONGOLICA ; DESERT PLANTS ; POPULUS-EUPHRATICA ; SOIL-WATER ; METEORIC PRECIPITATION ; SEASONAL-VARIATIONS ; NORTHWESTERN CHINA ; GROUNDWATER USE ; DIFFERENT AGES ; JUGLANS-REGIA
WOS研究方向	Forestry
语种	英语
出版者	MDPI
WOS记录号	WOS:000428508200026
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/54748]
专题	中国科学院地理科学与资源研究所
通讯作者	Wang, Li
作者单位	1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Ying,Wang, Li. Plant Water Use Strategy in Response to Spatial and Temporal Variation in Precipitation Patterns in China: A Stable Isotope Analysis[J]. FORESTS,2018,9(3):21.
APA	Zhao, Ying,&Wang, Li.(2018).Plant Water Use Strategy in Response to Spatial and Temporal Variation in Precipitation Patterns in China: A Stable Isotope Analysis.FORESTS,9(3),21.
MLA	Zhao, Ying,et al."Plant Water Use Strategy in Response to Spatial and Temporal Variation in Precipitation Patterns in China: A Stable Isotope Analysis".FORESTS 9.3(2018):21.