水土混合中土壤溶解性的试验研究

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• 英文论文题名：An experimental study on solubilization of soil mixed with water
• 论文作者：张卫风 ; 邱雪霏 ; 王秋华
• 英文论文作者：ZHANG Wei-feng ; QIU Xue-fei ; WANG Qiu-hua ; East China Jiaotong University
• 年：2017
• 作者机构：华东交通大学;
• 论文关键词：土质 ; 溶解 ; 水质
• 英文论文关键词：soil quality ; solubilization ; water quality
• 会议召开时间：2017-04-08
• 会议录名称：2017第九届河湖治理与水生态文明发展论坛论文集
• 语种：中文
• 分类号：TU992
• 学会代码：SLJS
• 会议名称：2017第九届河湖治理与水生态文明发展论坛
• 会议地点：中国陕西西安
• 主办单位：流域水循环模拟与调控国家重点实验室、国际水生态安全中国委员会、长江水利委员会长江科学院、南京大学常熟生态研究院
• 学会名称：中国水利技术信息中心
• 页数：5
• 文件大小：438k
• 原文格式：O
• 会议级别：全国

摘要

建设海绵城市具有强化土壤自然积存、渗透和净化水质的作用。研究水土条件对土质溶解性的影响,有利于建设更个性化的海绵城市。通过采集路而、路面下1米深、草坪及树林等四种土样,分别利用蒸馏水、自来水和湖水,进行溶解试验,分析溶解前后的土壤干重损失比,确定土壤溶解性的变化。试验结果表明土样的溶解对土壤干重的影响较大(干重损失比:0.6~3.8%),且不同水土条件的土壤溶解性不同。自来水试验中路面土平均干重损失比最高(2.8%)。湖水试验中1米深土平均干重损失比最高(2.4%),蒸馏水试验中树林土平均干重损失比最高(3.8%)。平均干重损失比比较结果,显示树林或草坪等绿化区的土样,其溶解性相对稳定,尤其是草坪土样的溶解性既小又稳定,从而有利于防止土壤物质溶解于雨水径流中。
It will strengthen and improve storage,filtration and purification functions of soil in nature by building sponge city.For a more practical sponge city,a specific experimental study on soil solubilization was developed with different conditions of water-soil quality in the paper.There are three water types(tap-water,lake-water,and distilled-water) and four soil types(lawn-soil,woods-soil,1-meter-depfh-soil and road-soil) involved in the study.To calculate dry-soil-weight loss ratio,the two dry-soil-weights were determined before and after the solution process.Results showed that soil solubilization have a quite stronge influence(dry weight loss ratio range,0.6-3.8%) on the variation of soil-dry-weight after being dissolved,and soil solubilization will change with the condition of water-soil quality.For the four soil types,the average dry weight loss ratio(2.8%) of road-soil was highest in tap-water experiments,the average dry weight loss ratio(2.4%) of 1-meter-soil was highest in lake-water experiments,and the average dry weight loss ratio(3.8%) of woods-soil was the highest one in distilled-water experiments.Comparison results of average dry weight loss ratios showed that afforestation will keep soil solubilization more stable and smaller,and is helpful to prevent soil dissolution in storm water.

引文

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