干旱区生态环境知识资源中心(Arid): Spatial distribution and drivers of throughfall beneath shrub canopies in a semi-arid desert steppe

Arid

DOI	10.1111/wej.12853
	Spatial distribution and drivers of throughfall beneath shrub canopies in a semi-arid desert steppe
	Chen, Xiaoying; Chen, Lin; Yang, Xinguo; Li, Minlan; Song, Naiping
通讯作者	Song, NP
来源期刊	WATER AND ENVIRONMENT JOURNAL
ISSN	1747-6585
EISSN	1747-6593
出版年	2023
卷号	37 期号:3 页码:493-511
英文摘要	The spatial distribution of water is mainly controlled by the vegetation canopy, which determines the partitioning of rainfall into interception, throughfall (TF) and stemflow. TF is known to be a critical component of hydrological and biogeochemical cycles. Spatiotemporal patterns of TF have been studied in different ecosystems, although the majority of studies focused on forests. Few reports on small-scale TF variability and drivers in semi-arid desert steppes have been published. Herein, we investigated the variability of TF of two morphologically distinct artificial revegetation shrubs (Caragana liouana and Salix psammophila) within a semi-arid desert steppe, synthesized the data and analysed the characteristics of TF distribution and drivers at the rainfall event scales. We found that (1) morphological differences were sufficient to generate significant (p < 0.05) differences in TF between the two shrub species under the same rainfall and meteorological conditions, with a TF percentage of 70.22% for C. liouana and 79.87% for S. psammophila; (2) a linear outward radical increase in TF was identified with increasing distance from the base of the isolated shrubs. Wind speed had a greater effect on the distribution of TF beneath the shrub structure for C. liouana, whereas the distribution of TF beneath the shrub structure for S. psammophila was more affected by wind direction; and (3) canopy architecture, in particular the stem angle and canopy base area, which affected the openness of the canopy and played an important role in the distribution of TF in the two shrubs. The results reveal the key factors driving water use under rainfall during revegetation and the TF utilization mechanism in semi-arid areas and highlight the complementary effect of different species on ecosystem hydrological functions.
英文关键词	artificial revegetation shrub canopy architecture driving factor semi-arid area throughfall characteristics
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000940269800001
WOS关键词	SOIL-WATER REPELLENCY ; FAGUS-SYLVATICA L. ; TEMPORAL STABILITY ; INTERCEPTION LOSS ; XEROPHYTIC SHRUB ; STABLE-ISOTOPES ; METEOROLOGICAL INFLUENCES ; RAINFALL INTERCEPTION ; STEMFLOW VOLUME ; NORTHERN CHINA
WOS类目	Environmental Sciences ; Limnology ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/399118
推荐引用方式 GB/T 7714	Chen, Xiaoying,Chen, Lin,Yang, Xinguo,et al. Spatial distribution and drivers of throughfall beneath shrub canopies in a semi-arid desert steppe[J],2023,37(3):493-511.
APA	Chen, Xiaoying,Chen, Lin,Yang, Xinguo,Li, Minlan,&Song, Naiping.(2023).Spatial distribution and drivers of throughfall beneath shrub canopies in a semi-arid desert steppe.WATER AND ENVIRONMENT JOURNAL,37(3),493-511.
MLA	Chen, Xiaoying,et al."Spatial distribution and drivers of throughfall beneath shrub canopies in a semi-arid desert steppe".WATER AND ENVIRONMENT JOURNAL 37.3(2023):493-511.