Increased snowfall weakens complementarity of summer water use by different plant functional groups

doi:10.1002/ece3.5058

	Increased snowfall weakens complementarity of summer water use by different plant functional groups
	Chi, Yonggang 1,2,3; Zhou, Lei 1,4; Yang, Qingpeng 5; Li, Shao-peng 3; Zheng, Shuxia 2
刊名	ECOLOGY AND EVOLUTION
	2019-04-01
卷号	9 期号:7 页码:4264-4274
关键词	hydrogen stable isotope signature (delta D) Inner Mongolia grassland oxygen stable isotope signature (delta O-18) rainfall snowfall water use partitioning
ISSN号	2045-7758
DOI	10.1002/ece3.5058
英文摘要	Winter snowfall is an important water source for plants during summer in semiarid regions. Snow, rain, soil water, and plant water were sampled for hydrogen and oxygen stable isotopes analyses under control and increased snowfall conditions in the temperate steppe of Inner Mongolia, China. Our study showed that the snowfall contribution to plant water uptake continued throughout the growing season and was detectable even in the late growing season. Snowfall versus rainfall accounted for 30% and 70%, respectively, of the water source for plants, on the basis of hydrogen stable isotope signature (delta D) analysis, and accounted for 12% and 88%, respectively, on the basis of oxygen stable isotope signature (delta O-18) analysis. Water use partitioning between topsoil and subsoil was found among species with different rooting depths. Increased snowfall weakened complementarity of plant water use during summer. Our study provides insights into the relationships between precipitation regimes and species interactions in semiarid regions.
资助项目	National Key Research and Development Program of China[2017YFB0504000] ; National Key Research and Development Program of China[2016YFB0501501] ; National Natural Science Foundation of China[31400393] ; National Natural Science Foundation of China[41871084] ; Zhejiang Provincial Natural Science Foundation of China[LY19C030004]
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
语种	英语
出版者	WILEY
WOS记录号	WOS:000465089500047
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/124039]
专题	中国科学院沈阳应用生态研究所
通讯作者	Zhou, Lei
作者单位	1.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 3.Georgia Inst Technol, Sch Biol Sci, Atlanta, GA 30332 USA 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Shenyang, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Chi, Yonggang,Zhou, Lei,Yang, Qingpeng,et al. Increased snowfall weakens complementarity of summer water use by different plant functional groups[J]. ECOLOGY AND EVOLUTION,2019,9(7):4264-4274.
APA	Chi, Yonggang,Zhou, Lei,Yang, Qingpeng,Li, Shao-peng,&Zheng, Shuxia.(2019).Increased snowfall weakens complementarity of summer water use by different plant functional groups.ECOLOGY AND EVOLUTION,9(7),4264-4274.
MLA	Chi, Yonggang,et al."Increased snowfall weakens complementarity of summer water use by different plant functional groups".ECOLOGY AND EVOLUTION 9.7(2019):4264-4274.