干旱区生态环境知识资源中心(Arid): Evapotranspiration flux partitioning at a multi-species shrubland with stable isotopes of soil, plant, and atmosphere water pools

Arid

DOI	10.20937/ATM.52710
	Evapotranspiration flux partitioning at a multi-species shrubland with stable isotopes of soil, plant, and atmosphere water pools
	Tarin, Tonantzin; Yepez, Enrico A.; Garatuza-Payan, Jaime; Rodriguez, Julio C.; Mendez-Barroso, Luis A.; Watts, Christopher J.; Vivoni, Enrique R.
通讯作者	Yepez, EA (corresponding author), Inst Tecnol Sonora, Dept Ciencias Agua & Medi Ambiente, 5 Febrero 818 Sur, Obregon 85000, Sonora, Mexico. ; Yepez, EA (corresponding author), Sede Reg Sur Sonora, Lab Nacl Geoquim & Mineral, 5 Febrero 818 Sur, Obregon 85000, Sonora, Mexico.
来源期刊	ATMOSFERA
ISSN	0187-6236
EISSN	2395-8812
出版年	2020
卷号	33 期号:4 页码:319-335
英文摘要	Evapotranspiration is the second largest component of the hydrological cycle after rainfall precipitation in semiarid regions such as northwestern Mexico. In this study, we partitioned the evapotranspiration (ET) flux using stable isotopes of water in the soil-plant-atmosphere continuum in combination with eddy covariance flux measurements. We considered three methods for determining the isotopic composition of transpiration (dT): (1) isotopic steady state, (2) non-steady state, and (3) non-steady state weighting the relative importance of dominant species cover and accounting for the relative values of stomatal conductance. Three approaches of T/ET partitioning were estimated during several wet and dry days at the study site in Sonora, Mexico. The total ET flux was variable across years due to differences in precipitation amount between years. ET was lower during the drier-year and reached higher values during the wetter-year. Soil evaporation (E) dominated ET soon after large rain events (40 to 70 mm d(-1) [DOY-196 and DOY-197] in 2008) but showed a rapid decrease in dominance as the soil surface dried. Estimated values of T/ET based on an isotopic mass balance were in the same range independent of three methods used. The mean T/ET ratio across all the periods studied was in the range of other studies in semiarid ecosystems and global trends with values of similar to 0.67 +/- 0.02. This work contributes to a better understanding of the surface atmosphere interactions in semi-arid regions.
英文关键词	ecohydrology subtropical ecosystem water availability Keeling plots North American monsoon
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:000618530400002
WOS关键词	CARBON-DIOXIDE ; EDDY-COVARIANCE ; LEAF WATER ; CHIHUAHUAN DESERT ; SAVANNA WOODLAND ; SAP-FLOW ; EVAPORATION ; TRANSPIRATION ; COMPONENTS ; VAPOR
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	Arizona State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348736
作者单位	[Tarin, Tonantzin; Yepez, Enrico A.; Garatuza-Payan, Jaime; Mendez-Barroso, Luis A.] Inst Tecnol Sonora, Dept Ciencias Agua & Medi Ambiente, 5 Febrero 818 Sur, Obregon 85000, Sonora, Mexico; [Tarin, Tonantzin] Univ Delaware, Dept Plant & Soil Sci, Newark, DE 19717 USA; [Yepez, Enrico A.; Garatuza-Payan, Jaime] Sede Reg Sur Sonora, Lab Nacl Geoquim & Mineral, 5 Febrero 818 Sur, Obregon 85000, Sonora, Mexico; [Rodriguez, Julio C.; Vivoni, Enrique R.] Univ Sonora, Dept Agr & Ganaderia, Blvd Encinas & Rosales, Hermosillo 83000, Sonora, Mexico; [Watts, Christopher J.] Univ Sonora, Dept Fis, Blvd Encinas & Rosales, Hermosillo 83000, Sonora, Mexico; [Vivoni, Enrique R.] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA; Arizona State Univ, Sch Sustainable Engn & Built Environm, Tempe, AZ 85287 USA
推荐引用方式 GB/T 7714	Tarin, Tonantzin,Yepez, Enrico A.,Garatuza-Payan, Jaime,et al. Evapotranspiration flux partitioning at a multi-species shrubland with stable isotopes of soil, plant, and atmosphere water pools[J]. Arizona State University,2020,33(4):319-335.
APA	Tarin, Tonantzin.,Yepez, Enrico A..,Garatuza-Payan, Jaime.,Rodriguez, Julio C..,Mendez-Barroso, Luis A..,...&Vivoni, Enrique R..(2020).Evapotranspiration flux partitioning at a multi-species shrubland with stable isotopes of soil, plant, and atmosphere water pools.ATMOSFERA,33(4),319-335.
MLA	Tarin, Tonantzin,et al."Evapotranspiration flux partitioning at a multi-species shrubland with stable isotopes of soil, plant, and atmosphere water pools".ATMOSFERA 33.4(2020):319-335.