Water Management in Agriculture

Water Management in Agriculture

Water consumption management for silviculture in arid and semi-arid regions by determining of water requirements and drought tolerance threshold

Document Type : Original Article

Authors
M.H Rad 1
M.H. Assareh 2
M. Khosroshahi 3
M. Soltani 4
1 Assistant Prof, Research Division of Natural Resources, Yazd Agricultural and Natural Resource Research and Education Center, AREEO, Yazd, Iran
2 Prof., Research Institute of Forests and Rangelands, AREEO, Tehran, Iran.
3 Associate Professor, Desert Research Division, Research Institute of Forests and Rangelands, AREEO, Tehran, Iran
4 M.Sc., Research Division of Natural Resources, Yazd Agricultural and Natural Resource Research and Education Center, AREEO, Yazd, Iran
Abstract
.
Improving vegetation cover in arid and semi-arid regions can be controlling desertification and the production of cellulosic materials by afforestation, in these circumstances, human survival and habitat, as well as wildlife, also provided too. For afforestation in arid and semi-arid regions, it is necessary to selection of appropriate species and pay attention to their ecological and eco adaptation needs. Drought resistance mechanisms include water use efficiency in many forest species for a stay of drought condition have been utilization. On the other hand, water requirements and the effects of drought stress on ecological adaptation are important for this plants. Through lysimetry experiments and determination of water requirement for many forest species including Saxual (Haloxylon aphyllum) and several species of eucalyptus (Eucalyptus camaldulensis, E. microtheca E. sarjentii, E. leucoxyloni, E, saligna and E. flocktoniea), there were considered and adaptation mechanisms for survival in dry conditions were studied for them. Among the mentioned species, Saxual had the lowest water requirement and the most resistant species to drought stress. This species had a higher water use efficiency to drought stress.
Keywords
Crop coefficient
Desertification
Evapotranspiration
Vegetative cover
Water use
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Water Management in Agriculture
Volume 8, Issue 1 - Serial Number 15
September 2021
Pages 59-66