Variability in leaf wettability and surface water retention of main species in semiarid Loess Plateau of China

doi:10.1002/eco.2021

	Variability in leaf wettability and surface water retention of main species in semiarid Loess Plateau of China
	Xiong, Peifeng 1; Chen, Zhifei 1; Jia, Zhao 1; Wang, Zhi 1,2; Palta, Jairo A.3,4,5; Xu, Bingcheng 1,2
刊名	ECOHYDROLOGY
	2018-12-01
卷号	11 期号:8 页码:12
关键词	family growth period habitat leaf wettability rainfall interception species surface water retention
ISSN号	1936-0584
DOI	10.1002/eco.2021
通讯作者	Xu, Bingcheng(bcxu@ms.iswc.ac.cn)
英文摘要	Leaf wettability, adhesion or repulsion of water drops, varies greatly among species and plays an important role in plant-soil hydrological relations. This study aimed to examine the variability in leaf wettability among species in different habitats and growth periods, and their relationships with plant surface water retention in the semiarid Loess Plateau of China. The leaf adaxial and abaxial contact angles, the surface water retention of leaves and individual plants, and general plant traits of 68 species belonging to 28 families were examined from May to August in 2017. Results showed that leaf water contact angles ranged from 27.3 degrees to 133.4 degrees and leaves with higher contact angles normally had lower variation coefficients. Leaf wettability was affected by internal properties (including leaf side, family, and leaf age) and external conditions (growth period), whereas the life form and slope aspect did not show significant effects. There were 47 species having higher contact angles on adaxial than abaxial surfaces, and the differences were significant in 23 species. Gramineous and leguminous species were more unwettable than compositae and rosaceous species. New leaves were more unwettable than old leaves. Surface wettability increased from May-June to July-August period. Leaf wettability was positively correlated with leaf surface water retention and was the best predictor of individual plant surface water retention compared with other plant traits. Leaf wettability showed interspecific differences associated with family and growth stage and can be a considerable variable in predicting canopy interception and evaluating vegetation hydrological function in drought environments.
资助项目	National Key Research and Development Program of China[2016YFC0501703] ; National Natural Science Foundation of China[41371509] ; National Natural Science Foundation of China[41771553]
WOS关键词	RAINFALL INTERCEPTION ; STORAGE CAPACITY ; REPELLENCY ; PLANTS ; VEGETATION ; MICROMORPHOLOGY ; CONTAMINATION ; PATTERNS ; STEMFLOW ; WETNESS
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
语种	英语
出版者	WILEY
WOS记录号	WOS:000451861100010
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/51496]
专题	中国科学院地理科学与资源研究所
通讯作者	Xu, Bingcheng
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Xinong Rd 26, Yangling, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China 3.Univ Western Australia, Inst Agr, Perth, WA, Australia 4.Univ Western Australia, Sch Agr & Environm, Perth, WA, Australia 5.CSIRO Agr & Food, Wembley, WA, Australia
推荐引用方式 GB/T 7714	Xiong, Peifeng,Chen, Zhifei,Jia, Zhao,et al. Variability in leaf wettability and surface water retention of main species in semiarid Loess Plateau of China[J]. ECOHYDROLOGY,2018,11(8):12.
APA	Xiong, Peifeng,Chen, Zhifei,Jia, Zhao,Wang, Zhi,Palta, Jairo A.,&Xu, Bingcheng.(2018).Variability in leaf wettability and surface water retention of main species in semiarid Loess Plateau of China.ECOHYDROLOGY,11(8),12.
MLA	Xiong, Peifeng,et al."Variability in leaf wettability and surface water retention of main species in semiarid Loess Plateau of China".ECOHYDROLOGY 11.8(2018):12.