微咸水间歇供水方式土壤水盐分布分析  

Analysis of Soil Water and Salt Distribution of Saline Water Intermittent Water Supply Mode

作　　者：严亚龙[1] 毕远杰 郭向红[1] 孙西欢[3] 马娟娟[1] 刘静妍[1] 

机构地区：[1]太原理工大学水利科学与工程学院,太原030024 [2]山西省水利水电科学研究院,太原030002 [3]山西水利职业技术学院,山西运城044004

出　　处：《节水灌溉》2015年第6期39-42,46,共5页Water Saving Irrigation

基　　金：国家自然科学基金项目(51109154;51209131);教育部博士点基金(20111402120006);山西省青年科技研究基金资助项目(2012021026-2);山西省科技攻关项目(20110311018-1);山西省高等学校创新人才支持计划资助;山西省水利科学技术项目;山西省农业科技推广示范项目

摘　　要：为了研究间歇供水微咸水不同入渗方式对土壤水盐分布的影响,开展了一维积水间歇入渗试验,研究了微咸水矿化度分别为1.75、3和5g/L,及不同周期数和循环率入渗条件下的入渗特性,并对比了不同矿化度、不同周期数与不同循环率对间歇入渗后土壤水盐分布的影响。结果表明,微咸水间歇入渗与一般的间歇入渗规律相同,但在试验取用范围内高矿化度、小周期数和高循环率可以有效促进水分入渗,矿化度提高土壤中盐分含量也随之增加,盐分含量随着间歇入渗周期数的增大而增大。In order to study the effect of intermittent water saline water with different infiltration influence on soil water salt distribu- tion, a one-dimensional intermittent water infiltration experiments is carried out. The infiltration characteristics under the condition of 1.75, 3 and 5 g/L water salinity, different number of cycles and cyclic rate of infiltration are studied. Also, the effects of different salinity, different cycle number and different cycle rate on soil water and salt distribution after intermittent infiltration are compared. The results show that the infiltration law of the saline water intermittent infiltration is the same as that of general intermittent infiltratiom while in the range of experiment, high salinity, small cycle number and high recycling rate can effectively promote water infiltration. The mineralization degree is increased and the salt content in soil is also increased. The salt content is increased with the increase of cycle number under interrnittont infiltration.

关 键 词：微咸水 间歇入渗 含水率 含盐量 

分 类 号：S275.8[农业科学—农业水土工程]