干旱区生态环境知识资源中心(Arid): Interception, throughfall and stemflow partition in drylands: Global synthesis and meta-analysis

Arid

DOI	10.1016/j.jhydrol.2018.10.042
	Interception, throughfall and stemflow partition in drylands: Global synthesis and meta-analysis
	Magliano, Patricio N.1,2,3; Whitworth-Hulse, Juan I.1,2,4,5; Baldi, German 1,2
通讯作者	Magliano, Patricio N.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2019
卷号	568 页码:638-645
英文摘要	The net amount of rainfall entering into the soil and its spatial distribution at the patch scale are key drivers of ecosystem processes in drylands. The spatial distribution of water is mainly controlled by vegetation canopy which determines the partitioning of rainfall into interception, throughfall and stemflow. In this paper, we synthesized and analyzed rainfall partitioning for 68 woody plant species in drylands (delimited by a rainfall-potential evapotranspiration ratio < 0.65; 46 papers). We explored the role of rainfall inputs and plant morphological attributes (life form, phenology, leaf type and bark type) by considering a rainfall gradient from 145 to 805 mm year(-1). On average, interception, throughfall and stemflow accounted for 24.0, 69.8 and 6.2% of total rainfall, respectively. Stemflow was the most variable flux (coefficient of variation = 107.8%), while interception and throughfall were less variable fluxes (coefficient of variation = 39.2 and 20.4%, respectively). Along the increasing rainfall gradient, interception showed a tendency to decrease from 27.1 to 18.9% (p = 0.12), throughfall increased from 61.4 to 81.2% (p < 0.01) and stemflow decreased from 10.0 to 1.6% (p < 0.0001). Shrubs presented higher stemflow than trees (9.4% vs. 3.5%, respectively; p < 0.0001), while trees presented higher throughfall than shrubs (72.3% vs. 63.0%, respectively; p < 0.05). Species with smooth barks presented higher stemflow than species with rough barks (8.3% vs. 4.2%, respectively; p < 0.0001). Both phenology and leaf type had no effect on interception, throughfall and stemflow (p > 0.05 for all cases). Shrubs were more abundant towards the dry edge of the rainfall gradient (145-500 mm year(-1)), while trees were more abundant towards the subhumid edge (500-805 mm year(-1)). These results suggested that higher stemflow found towards the dry edge of the rainfall gradient was caused by the higher abundance of shrubs, which generated more stemflow than trees. Our findings highlighted the ecohydrological key role of vegetation life form and rainfall inputs affecting the amount of water entering into the soil and its spatial distribution in drylands.
英文关键词	Aridity Ecohydrology Precipitation Rangelands
类型	Article
语种	英语
国家	Argentina
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000455694400050
WOS关键词	2 XEROPHYTIC SHRUBS ; RAINFALL INTERCEPTION ; SOIL-WATER ; DESERT SHRUBS ; ARID ZONE ; VEGETATION ; REDISTRIBUTION ; TREES ; PINE ; FORESTS
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217120
作者单位	1.Univ Nacl San Luis, IMASL, Grp Estudios Ambientales, Ejercito Andes 950,D5700HHW, San Luis, Argentina; 2.Consejo Nacl Invest Cient & Tecn, Ejercito Andes 950,D5700HHW, San Luis, Argentina; 3.Univ Nacl San Luis, Fac Quim Bioquim & Farm, Dept Bioquim & Ciencias Biol, Ejercito Andes 950,D5700HHW, San Luis, Argentina; 4.Univ Nacl Cordoba, Inst Multidisciplinario Biol Vegetal, CC 495,X5000JJC, Cordoba, Argentina; 5.Consejo Nacl Invest Cient & Tecn, CC 495,X5000JJC, Cordoba, Argentina
推荐引用方式 GB/T 7714	Magliano, Patricio N.,Whitworth-Hulse, Juan I.,Baldi, German. Interception, throughfall and stemflow partition in drylands: Global synthesis and meta-analysis[J],2019,568:638-645.
APA	Magliano, Patricio N.,Whitworth-Hulse, Juan I.,&Baldi, German.(2019).Interception, throughfall and stemflow partition in drylands: Global synthesis and meta-analysis.JOURNAL OF HYDROLOGY,568,638-645.
MLA	Magliano, Patricio N.,et al."Interception, throughfall and stemflow partition in drylands: Global synthesis and meta-analysis".JOURNAL OF HYDROLOGY 568(2019):638-645.