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United States Department of Agriculture (USDA) 2011

IRRIGATION REQUIREMENTS OF LANDSCAPE PLANTS IN A SEMI-ARID ENVIRONMENT

Irrigation Plants Semi-Arid

United States Department of Agriculture (USDA) Research, Education & Economics Information System (REEIS)

Titre : IRRIGATION REQUIREMENTS OF LANDSCAPE PLANTS IN A SEMI-ARID ENVIRONMENT

Identification : ARZT-1360410-H25-215

Pays : Etats Unis

Durée : Jul 1, 2011 à Jun 30, 2016

Domaine : Plant Management Systems ; Plant Biological Efficiency and Abiotic Stresses Affecting Plants ; Conservation and Efficient Use of Water ; Ornamental trees and shrubs ;

Partenaire : UNIVERSITY OF ARIZONA 888 N EUCLID AVE TUCSON,AZ 85719-4824

Objectifs
The objective of this project is to determine the effect of different amounts of irrigation on functional and aesthetic performance of commonly grown trees in southwest landscapes. Nine species of commonly planted landscape trees are grown in the low desert of Arizona and are supplied with three levels of irrigation. The study will be continued for three consecutive years and will establish baseline data for irrigation management of native and desert-adapted trees in the semi-arid climate of the region. Data is collected on trunk and canopy growth, incidence of health problems, canopy density, and overall plant quality. Results from this project will aid in managing irrigation of urban landscapes and provide trees with the amount of water necessary, not the amount of water estimated. The project can also verify whether trees currently on the state low water use plant list can indeed thrive on low amounts of irrigation as suggested. If water restrictions will become a necessity during future drought periods or other events that curtail water use for landscape irrigation, science based information obtained under local conditions in the low desert of Arizona can be used, rather than estimates to construct water budgets for the maintenance of urban landscape trees. The information will be directly applicable to irrigation management of urban landscapes and can be used by green industry personnel, municipalities, policy makers, and residents. Results from this study will help to determine irrigation thresholds for trees to thrive or survive in the semi-arid climate of the Southwest. Although most of the documentation above refers specifically to Arizona, many of the trees tested in this project are widely used in the region including Nevada, southeast California, Southern New Mexico and west Texas.

Présentation : USDA

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