Influences of saline water irrigation on soil physical properties in Shiyang River Basin
Ji Quanyi1, Feng Shaoyuan1,2, Yuan Chengfu1, Huo Zailin2, Qi Yanbing2
1.School of Hydraulic, Energy and Power Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China; 2. Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, China
Abstract：To reveal the regulation mechanism of saline water irrigation on soil hydraulic properties and to exploit proper irrigation schedules in arid areas in Northwest China, a series of field experiments are conducted in the middle area of Shiyang River Basin by using irrigation water with four salinity levels(0.71, 3.00, 6.00 and 9.00 g/L), the effects of salt content on soil bulk density, porosity, texture, and saturated hydraulic conductivity are identified. The results indicate that the soil bulk density increases significantly but the soil porosity decreases with increasing irrigation water salinity, thus the saturated hydraulic conductivity is changed against irrigation water salinity as well. Additionally, the soil clay content increases notably under the condition of saline water irrigation. These findings provide a new insight into understanding of the response of soil hydraulic properties to saline water irrigation.
季泉毅, 冯绍元,, 袁成福, 霍再林, 齐艳冰. 石羊河流域咸水灌溉对土壤物理性质的影响[J]. 排灌机械工程学报, 2014, 32(9): 802-807.
Ji Quanyi, Feng Shaoyuan,, Yuan Chengfu, Huo Zailin, Qi Yanbing. Influences of saline water irrigation on soil physical properties in Shiyang River Basin. Journal of Drainage and Irrigation Machinery Engin, 2014, 32(9): 802-807.
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