Water consumption of a six-year-old river red gum plantation in the Southern Zagros Mountains, Iran |
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Authors: | Masoud Edraki Sayyed Ahang Kowsar Ali Asghar Mehrbakhsh Ali Bordbar |
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Institution: | (1) Department of Primary Industries, Sunraysia Horticultural Centre, PO Box 905, Mildura, Victoria, Australia;(2) Fars Research Center for Agriculture and Natural Resources, P.O. Box 71365-458, Shiraz, I.R., Iran |
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Abstract: | Water is the most important limiting factor in the development of arid environments; therefore, optimization of water use
is a necessity in desert reclamation projects. Evapotranspiration of a 6-year-old river red gum (Eucalyptus camaldulensis Dehnh.) plantation, located in a sedimentation basin of an artificial recharge of the Gareh Bygone Plain groundwater system
in Iran’s southern Zagros Mountains, was studied during a 7-month period. A neutron moisture probe was used to monitor soil
water changes in the root zone. Soil water depletion following rapid drainage for blocks receiving relatively high, medium
and low volumes of floodwater were 809.6, 312.4, and 203.1 mm, respectively, for a 150-day period. Soil water potential during
most of the study period was below −1.5 MPa. This study proves that river red gum in not a suitable species for desertification
control where water conservation is of vital importance. Flood irrigation of trees on 8 Aug. 1991 provided the opportunity
to throw doubt upon the claim of summer dormancy of river red gum. |
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Keywords: | Water consumption Eucalyptus camaldulensis desertification control Iran |
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