Applicability of fresh water infiltration model in saline water infiltration process
Li Tao1, Wang Quanjiu1,2
1.Institute of Water Resources and Hydro-electric Engineering, Xi′an University of Technology, Xi′an, Shaanxi 710048, China; 2.State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Soil and Water Conservation, CAS & MWR, Yangling, Shaanxi 712100, China
Abstract：The exploitation and utilization of saline water is becoming one of the most important approaches for alleviating shortage of fresh water resources. However, the infiltration properties of soil can be affected by ions in saline water. Hence a series of vertical one-dimensional infiltration experiments were conducted using saline water with various salinities and sodium adsorption ratios(SAR)in door at Nanpi Ecological Experimental Station in Hebei province. According to the experiment results, there was mutation effect at 2.99 g/L salinity where the maximum infiltration occurred for infiltration capacity. The soil saturated hydraulic conductivity was increased with SAR and reached the maximum value when the SAR was 8.15(mmol/L)1/2 at 3 g/L salinity. The Green-Ampt model and algebraic model for one-dimensional infiltration were compared in terms of fitted relationships between cumulative infiltration and time. The results showed that both the models could describe the saline water infiltration process, whereas relevant hydraulic parameters differed from those of fresh water. Based on an analysis on theoretical and measured cumulate infiltration curves, it was turned out the Green-Ampt model was more accurate in a long duration infiltration experiment, but the algebraic model for one-dimensional infiltration was more suitable for a short duration experiment on the saline water infiltration process.
栗涛, 王全九,. 淡水入渗模型对咸水入渗过程的适用性[J]. 排灌机械工程学报, 2014, 32(1): 80-85.
Li Tao, Wang Quanjiu,. Applicability of fresh water infiltration model in saline water infiltration process. Journal of Drainage and Irrigation Machinery Engin, 2014, 32(1): 80-85.
[1]吴普特,赵西宁,操信春,等. 中国“农业北水南调虚拟工程”现状及思考[J]. 农业工程学报, 2010,26(6):1-6. Wu Pute,Zhao Xining,Cao Xinchun,et al. Status and thoughts of Chinese “agricultural north-to-south water diversion virtual engineering”[J]. Transactions of the CSAE, 2010, 26(6): 1-6.(in Chinese)[2]Ranatunga K, Nation E R, Barodien G. Potential use of saline groundwater for irrigation in the Murray hydrogeological basin of Australia[J]. Environmental Modelling and Software, 2010,25(10):1188-1196.[3]张秋平,郝晋珉,白玮. 黄淮海地区粮食生产中的农业水资源经济价值核算[J]. 农业工程学报, 2008,24(2):1-5. Zhang Qiuping,Hao Jinmin,Bai Wei. Estimation of economic value of agricultural water resource in grain production in Huang-Huai-Hai Region[J]. Transactions of the CSAE, 2008,24(2):1-5.(in Chinese)[4]吴忠东,王全九,苏莹. 微咸水进行农田灌溉的研究[J]. 人民黄河, 2005,27(5):52-54. Wu Zhongdong,Wang Quanjiu,Su Ying. Study on using slightly salty for irrigation[J]. Yellow River, 2005,27(5):52-54.(in Chinese)[5]Xiao Zhenhua, Prendergast B, Rengasamy P. Effect of irrigation water quality on soil hydraulic conductivity[J]. Pedosphere, 1992,2(3):237-244.[6]农业部. “948”项目“微咸水农田灌溉技术”验收技术文件报告[R]. 北京:中国农科院土壤研究所,2000.[7]王全九,徐益敏,王金栋,等. 咸水与微咸水在农业灌溉中的应用[J]. 灌溉排水, 2002,21(4):73-77. Wang Quanjiu, Xu Yimin, Wang Jindong, et al. Application of saline and slight saline water for farmland irrigation[J]. Irrigation and Drainage, 2002,21(4):73-77.(in Chinese)[8]吴忠东,王全九. 不同微咸水组合灌溉对土壤水盐分布和冬小麦产量影响的田间试验研究[J]. 农业工程学报, 2007,23(11):71-76. Wu Zhongdong,Wang Quanjiu. Field study on impacts of soil water-salt distribution and winter wheat yield by different saline water combination irrigations[J]. Tran-sactions of the CSAE, 2007,23(11):71-76.(in Chinese)[9]Tedeschi A, Dell′Aquila R. Effects of irrigation with saline waters, at different concentrations, on soil physical and chemical characteristics[J]. Agricultural Water Management, 2005,77(1/2/3):308-322.[10]吴忠东,王全九. 微咸水非充分灌溉对土壤水盐分布与冬小麦产量的影响[J]. 农业工程学报, 2009, 25(9): 36-42. Wu Zhongdong,Wang Quanjiu. Effects of deficit irrigation with brackish water on soil water-salt distribution and winter wheat yield[J]. Transactions of the CSAE, 2009,25(9):36-42.(in Chinese)[11]王全九,叶海燕,史晓南,等. 土壤初始含水量对微咸水入渗特征影响[J]. 水土保持学报, 2004,18(1): 51-53. Wang Quanjiu, Ye Haiyan, Shi Xiaonan, et al. Influence of initial water content on slight saline water infiltration[J]. Journal of Soil Water Conservation, 2004,18(1):51-53.(in Chinese)[12]吴忠东,王全九. 入渗水矿化度对土壤入渗特征和离子迁移特性的影响[J]. 农业机械学报, 2010,41(7):64-69, 75. Wu Zhongdong,Wang Quanjiu. Effect on both soil infiltration characteristics and ion mobility features by mine-ralization degree of infiltration water[J]. Transactions of the Chinese Society for Agricultural Machinery, 2010,41(7):64-69,75.(in Chinese)[13]吴忠东,王全九. 微咸水入渗水量对土壤水盐运移特征的影响[J]. 农业机械学报, 2010,41(11):67-71,78. Wu Zhongdong, Wang Quanjiu. Effect on characteristics of soil water and salt movement about saline water infiltration with different infiltration amount[J]. Transactions of the Chinese Society for Agricultural Machinery, 2010,41(11):67-71,78.(in Chinese)[14]吴忠东,王全九. 利用一维代数模型分析微咸水入渗特征[J]. 农业工程学报, 2007,23(6):21-26. Wu Zhongdong, Wang Quanjiu. Infiltration characteristics of brackish water by one dimensional algebraic mo-del[J]. Transactions of the CSAE, 2007,23(6):21-26.(in Chinese)[15]Green W H, Ampt G A. Studies on soil physics: 1. Flow of air and water through soils[J]. Journal of Agricultural Science, 1911,4(1):1-24.[16]Wang Quanjiu, Horton R, Shao Ming'an. Algebraic model for one-dimensional infiltration and soil water distribution[J]. Soil Science, 2003,168(10):671-676.[17]郭太龙,迟道才,王全九,等. 入渗水矿化度对土壤水盐运移影响的试验研究[J]. 农业工程学报, 2005,21(S1):84-87. Guo Tailong, Chi Daocai, Wang Quanjiu, et al. Experimental study on salt and water movement affected by mineralization degree of infiltration water[J]. Transactions of the CSAE, 2005,21(S1):84-87.(in Chinese)
