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Estimation Of Evapotranspiration Of Cottonwood Trees In The Cibola National Wildlife Refuge, Cibola, Arizona, Amity J. Jetton
Estimation Of Evapotranspiration Of Cottonwood Trees In The Cibola National Wildlife Refuge, Cibola, Arizona, Amity J. Jetton
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This study used sap flow measurements and satellite imagery to estimatewater use by cottonwood (Populus fremontii S. Wats. ssp) trees in an irrigated restoration plot at Cibola National Wildlife Refuge on the Lower Colorado River. Several thousand hectares of irrigated plots of this type are planned to improve riparian habitat on the river, hence it is important to know how much water the trees require. In this study, the ET rates for 20 Freemont cottonwood trees, from an 8 ha plot, were monitored over a 30-day period. ET rates were estimated by measuring sap flow through branches of the trees. …