安徽农业科学Issue(6)：3327-3330,4.
盐溶液对土壤入渗特性的影响
Effect of Salt Solution on Characteristics of Soil Infiltration
摘要
Abstract
[Objective] The aim was to study the effect of salt solution on characteristics of soil infiltration, and to provide references for the further studies on the effect of water quality on soil infiltration characteristics and its mechanism. [ Method] With the NaCl, CaCl2 solutions as the main test materials, the effect of different water quality and salt solution concentration on soil infiltration was studied under one-dimensional vertical ponded water infiltration at laboratory. [ Result ] The solution concentration could affect the infiltration performance. The trends of the infiltration rates, cumulative infiltrations and wetting front migration distances were all 50 mg/L＞100 mg/L＞10 mg/L. At the same concentration, the effect of NaCl solution on soil infiltration characteristics was more significant than CaCl2 solution: in the same time, cumulative infiltration and wetting front migration distance of NaCl solution were greater than CaCl, solution; compared with NaCl solution, CaCl2 solution took longer time to infiltrate the same amount of water. The dynamic changes of infiltration rate, wetting front and cumulative infiltration were well fitted to the Philip model. [Conclusion] This study only conducted indoor experiment to the infiltration of salt solutions, involving in low concentration and small range. Although it provided some references for the study of the effect of water quality on soil infiltration characteristics and its mechanism, studies in larger areas and with bigger concentrations are demanding.关键词
盐溶液/土壤水分/入渗特性分类
农业科技引用本文复制引用
陈曦,潘英华,郝春红,谭妍青..盐溶液对土壤入渗特性的影响[J].安徽农业科学,2012,(6):3327-3330,4.基金项目
国家自然科学基金项目(40801 100、50179035、50609022) （40801 100、50179035、50609022）
黄土高原土壤侵蚀与旱地农业国家重点实验室基金项目(10501-177、10501-220) （10501-177、10501-220）
鲁东大学学科建设项目经费资助 （）
山东省水土保持与环境保育重点实验室开放基金(STKF201011). （STKF201011）
