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Effect of Water Salinity on Survival and Growth of Landscape Trees in Saudi Arabia

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Abstract:

A greenhouse experiment determined the effect of water salinity on the survival and growth of landscape trees and soil properties. The survival period of trees decreased significantly with increase in soil salinity resulted from irrigation water salinity. The survival period of Acacia nilotica and Prosopis juliflora was significantly more than Eucalyptus camaldulensis and Parkinsonia aculeate under different water salinity levels and soil types. The total biomass decreased significantly with increase in soil salinity. Prosopis juliflora tolerated soil salinity (ECe) up to 39.5 dS m-1 and Acacia nilotica up to 44.9 (ECe) with water salinity of 12.80 dS m-1; Parkinsonia aculeate up to 29.26 (ECe) with water salinity of 6.45 dS m-1 and Eucalyptus camaldulensis up to 34.3 (ECe) with water salinity of 6.45 dS m-1. The salinity build up was significantly more in light than heavy soil. A strong correlation (r2) was found between soil salinity and plant biomass. The experiment proved the sequence in salt tolerance for different landscape trees as Prosopis and Acacia > Parrkinsonia > Eucalyptus. In conclusion, Acacia nilotica and Prospis juliflora should be cultivated as landscape trees for controlling desertification, establishing shelterbelts around oil refineries and in sand stabilization projects.
Keywords: Water salinity, Tree survival and growth, Biomass yield, soil salinity, salt tolerance, leaching requirement
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Association:
Name: SOIL AND WATER CONSERVATION SOCIETY
URL:
http://www.swcs.org


Citation:
URL: http://citation.allacademic.com/meta/p235317_index.html
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MLA Citation:

Hussain, Ghulam. "Effect of Water Salinity on Survival and Growth of Landscape Trees in Saudi Arabia" Paper presented at the annual meeting of the SOIL AND WATER CONSERVATION SOCIETY, TBA, Tucson, Arizona, Jul 26, 2008 <Not Available>. 2013-12-14 <http://citation.allacademic.com/meta/p235317_index.html>

APA Citation:

Hussain, G. , 2008-07-26 "Effect of Water Salinity on Survival and Growth of Landscape Trees in Saudi Arabia" Paper presented at the annual meeting of the SOIL AND WATER CONSERVATION SOCIETY, TBA, Tucson, Arizona <Not Available>. 2013-12-14 from http://citation.allacademic.com/meta/p235317_index.html

Publication Type: Oral Presentation
Abstract: A greenhouse experiment determined the effect of water salinity on the survival and growth of landscape trees and soil properties. The survival period of trees decreased significantly with increase in soil salinity resulted from irrigation water salinity. The survival period of Acacia nilotica and Prosopis juliflora was significantly more than Eucalyptus camaldulensis and Parkinsonia aculeate under different water salinity levels and soil types. The total biomass decreased significantly with increase in soil salinity. Prosopis juliflora tolerated soil salinity (ECe) up to 39.5 dS m-1 and Acacia nilotica up to 44.9 (ECe) with water salinity of 12.80 dS m-1; Parkinsonia aculeate up to 29.26 (ECe) with water salinity of 6.45 dS m-1 and Eucalyptus camaldulensis up to 34.3 (ECe) with water salinity of 6.45 dS m-1. The salinity build up was significantly more in light than heavy soil. A strong correlation (r2) was found between soil salinity and plant biomass. The experiment proved the sequence in salt tolerance for different landscape trees as Prosopis and Acacia > Parrkinsonia > Eucalyptus. In conclusion, Acacia nilotica and Prospis juliflora should be cultivated as landscape trees for controlling desertification, establishing shelterbelts around oil refineries and in sand stabilization projects.
Keywords: Water salinity, Tree survival and growth, Biomass yield, soil salinity, salt tolerance, leaching requirement

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