Respond of Plant Growth and Soil Water-Salt to Different Irrigation Amounts in Little Thickness Aeration Zone in the Hinterland of Taklimakan Desert

Abstract:

In order to clarify the influence of saline water irrigation to plant growth and distribution ofsoil water-salt, and providing theoretical basis for sustainable water supply of ecological constructionin desert area, the data of soil water-salt and plant growth was observed at Tarim Desert HighwayShelter-forest Ecological Project No. 17 well. The law of soil water and salt spatial distribution wasanalyzed, and the responses of plant growth to 4 different irrigation amounts were studied by singleelement variance analysis. The results were as follows: the soil water content reaches or is close tosaturation in layer of 100~120cm under the 420mm irrigation water condition; The soil water contentreaches or is close to saturation in layer of 160~180cm under the 233.1mm irrigation water condition;The soil water content reaches or is close to saturation in layer of 180~200cm under the 285.6mm irrigation water condition; The soil water content reaches or is close to saturation in layer of160~180cm under the 201.6mm irrigation water condition. The vertical distribution law of soilssalinity is that the soil salt can enter groundwater after 3 days of irrigation, and be gathered in 0~30cmsoil layer. There were no significant differences except the Tamarix plant height in plant growthindexes among 4 different irrigation quantities treatments.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 3872-3876
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.3872
• Online since: August 2013
• Authors: Xiao Jun Jin*, Jing Long Fan, Bo Xu, Bing Wen Li, Xin Wen Xu
• Keywords: Drip Irrigation with Saline Water, Irrigation Amounts, Shelter Forest, Taklimakan Desert, Water-Salt in Aerated Soil

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