| 聚丙烯酸钠对3种土壤质地入渗特征的影响 |
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| 引用本文： | 董勤各,冯浩,庄文化.聚丙烯酸钠对3种土壤质地入渗特征的影响[J].中国水土保持科学,2010,8(1):81-86. |
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| 作者姓名： | 董勤各 冯浩 庄文化 |
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| 作者单位： | 1. 中国科学院,水利部,水土保持研究所,712100,陕西杨凌;中国科学院研究生院,100049,北京
2. 中国科学院,水利部,水土保持研究所,712100,陕西杨凌;西北农林科技大学水土保持研究所,712100,陕西杨凌 |
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| 基金项目： | "十一五"863计划课题"降水资源转化利用技术"，新世纪优秀人才支持计划"降水-土壤水-作物水高效转化新技术" |
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| 摘 要： | 采用一维垂直积水入渗法,分析聚丙烯酸钠在4种质量分数（0、0.08%、0.20%与0.50%）处理下对砂土、壤土和黏土水分入渗性能以及Kostiakov入渗模型参数的影响。结果表明:聚丙烯酸钠与土壤质量比在0.08%0.50%范围内时,3种土壤质地入渗速率都随时间推移呈下降趋势,土壤入渗能力随聚丙烯酸钠质量分数的增大明显降低;聚丙烯酸钠显著抑制土壤入渗能力;入渗系数k随聚丙烯酸钠用量的增加而下降;入渗指数a值随聚丙烯酸钠用量的增加基本呈上升趋势;k/a值对聚丙烯酸钠的响应随聚丙烯酸钠质量分数的增加逐渐增强。
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| 关 键 词： | 一维垂直积水入渗 入渗速率 聚丙烯酸钠 累积入渗量 入渗模型参数 |
Influence of sodium polyacrylate on infiltration characteristic of three soil textures |
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| Dong Qinge,Feng Hao,Zhuang Wenhua.Influence of sodium polyacrylate on infiltration characteristic of three soil textures[J].Science of Soil and Water Conservation,2010,8(1):81-86. |
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| Authors: | Dong Qinge Feng Hao Zhuang Wenhua |
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| Institution: | Dong Qinge1,2,Feng Hao1,3,Zhuang Wenhua1,2(1.Institute of Soil , Water Conservation,Chinese Academy of Sciences , Ministry of Water Resources,712100,Yangling,Shaanxi,2.Graduate School of Chinese Academy of Sciences,100049,Beijing,3.Institute of Soil , Water Conservation,Northwest Sci-Tech University of Agriculture , Forestry,Shaanxi: China) |
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| Abstract: | Based on the experiment of one-dimensional vertical infiltration in laboratory conditions,the effect of Sodium Polyacrylate on infiltration capacity of sandy, loamy,and clayey soil and infiltration parameters of Kostiakov infiltration equations were studied.Four concentrations of sodium polyacrylate(0,0.08%,0.20%,and 0.50%),on dry weight basis,were added to these three soils.The results show that the concentration of sodium polyacrylate is controlled from 0.08% to 0.50% by weight,then the infiltration rate ... |
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| Keywords: | one-dimensional vertical infiltration infiltration rate sodium polyacrylate cumulative infiltration capacity infiltration model parameter |
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