干旱区生态环境知识资源中心(Arid): Climate sensitivity of water use by riparian woodlands at landscape scales

Arid

DOI	10.1002/hyp.13942
	Climate sensitivity of water use by riparian woodlands at landscape scales
	Mayes, Marc; Caylor, Kelly K.; Singer, Michael Bliss; Stella, John C.; Roberts, Dar; Nagler, Pamela
通讯作者	Mayes, M
来源期刊	HYDROLOGICAL PROCESSES
ISSN	0885-6087
EISSN	1099-1085
出版年	2020
卷号	34 期号:25 页码:4884-4903
英文摘要	Semi-arid riparian woodlands face threats from increasing extractive water demand and climate change in dryland landscapes worldwide. Improved landscape-scale understanding of riparian woodland water use (evapotranspiration, ET) and its sensitivity to climate variables is needed to strategically manage water resources, as well as to create successful ecosystem conservation and restoration plans for potential climate futures. In this work, we assess the spatial and temporal variability of Cottonwood (Populus fremontii)-Willow (Salix gooddingii) riparian gallery woodland ET and its relationships to vegetation structure and climate variables for 80 km of the San Pedro River corridor in southeastern Arizona, USA, between 2014 and 2019. We use a novel combination of publicly available remote sensing, climate and hydrological datasets: cloud-based Landsat thermal remote sensing data products for ET (Google Earth Engine EEFlux), Landsat multispectral imagery and field data-based calibrations to vegetation structure (leaf-area index, LAI), and open-source climate and hydrological data. We show that at landscape scales, daily ET rates (6-10 mm day(-1)) and growing season ET totals (400-1,400 mm) matched rates of published field data, and modelled reach-scale average LAI (0.80-1.70) matched lower ranges of published field data. Over 6 years, the spatial variability of total growing season ET (CV = 0.18) exceeded that of temporal variability (CV = 0.10), indicating the importance of reach-scale vegetation and hydrological conditions for controlling ET dynamics. Responses of ET to climate differed between perennial and intermittent-flow stream reaches. At perennial-flow reaches, ET correlated significantly with temperature, whilst at intermittent-flow sites ET correlated significantly with rainfall and stream discharge. Amongst reaches studied in detail, we found positive but differing logarithmic relationships between LAI and ET. By documenting patterns of high spatial variability of ET at basin scales, these results underscore the importance of accurately accounting for differences in woodland vegetation structure and hydrological conditions for assessing water-use requirements. Results also suggest that the climate sensitivity of ET may be used as a remote indicator of subsurface water resources relative to vegetation demand, and an indicator for informing conservation management priorities.
英文关键词	climate conservation ecosystem management evapotranspiration remote sensing riparian woodlands San Pedro River water
类型	Article
语种	英语
开放获取类型	Bronze, Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000587476700001
WOS关键词	SAN-PEDRO RIVER ; ENHANCED VEGETATION INDEX ; LEAF-AREA INDEX ; GROUNDWATER USE ; ENERGY-BALANCE ; EVAPOTRANSPIRATION ; COTTONWOOD ; PLANTS ; TRANSPIRATION ; RESTORATION
WOS类目	Water Resources
WOS研究方向	Water Resources
来源机构	United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327402
作者单位	[Mayes, Marc; Caylor, Kelly K.; Singer, Michael Bliss] Univ Calif Santa Barbara, Earth Res Inst, Santa Barbara, CA 93106 USA; [Caylor, Kelly K.] Univ Calif Santa Barbara, Dept Geog, Santa Barbara, CA 93106 USA; [Caylor, Kelly K.] Univ Calif Santa Barbara, Bren Sch Environm Sci & Management, Santa Barbara, CA 93106 USA; [Singer, Michael Bliss] Cardiff Univ, Sch Earth & Environm Sci, Cardiff, Wales; [Singer, Michael Bliss] Cardiff Univ, Water Res Inst, Cardiff, Wales; [Stella, John C.; Roberts, Dar] SUNY Coll Environm Sci & Forestry, Dept Sustainable Resources Management, Syracuse, NY 13210 USA; [Nagler, Pamela] US Geol Survey, Southwest Biol Sci Ctr, Tucson, AZ USA
推荐引用方式 GB/T 7714	Mayes, Marc,Caylor, Kelly K.,Singer, Michael Bliss,et al. Climate sensitivity of water use by riparian woodlands at landscape scales[J]. United States Geological Survey,2020,34(25):4884-4903.
APA	Mayes, Marc,Caylor, Kelly K.,Singer, Michael Bliss,Stella, John C.,Roberts, Dar,&Nagler, Pamela.(2020).Climate sensitivity of water use by riparian woodlands at landscape scales.HYDROLOGICAL PROCESSES,34(25),4884-4903.
MLA	Mayes, Marc,et al."Climate sensitivity of water use by riparian woodlands at landscape scales".HYDROLOGICAL PROCESSES 34.25(2020):4884-4903.