[1]董晓华,姚着喜,彭涛,等.温度对砂型土壤和石英砂水分特征曲线的影响[J].水土保持研究,2016,23(06):64-68.
　DONG Xiaohua,YAO Zhuoxi,PENG Tao,et al.Effects of Temperature on Comparative Study of the Water Characteristic Curve of Soil and Quartz Sand[J].Research of Soil and Water Conservation,2016,23(06):64-68.
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温度对砂型土壤和石英砂水分特征曲线的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年06期 页码: 64-68 栏目: 出版日期: 2016-12-28
Title:
Effects of Temperature on Comparative Study of the Water Characteristic Curve of Soil and Quartz Sand
作者:
董晓华1,2, 姚着喜1, 彭涛1,2, 刘冀1,2, 李英海1,2, 刘潇钧1, 郭梁锋1
1. 三峡大学 水利与环境学院, 湖北 宜昌 443002;
2. 水资源安全保障湖北省协同创新中心, 武汉 430072
Author(s):
DONG Xiaohua1,2, YAO Zhuoxi1, PENG Tao1,2, LIU Ji1,2, LI Yinghai1,2, LIU Xiaojun1, GUO Liangfeng1
1. College of Hydraulic and Environment, China Three Gorges University, Yichang, Hubei 443000, China;
2. Hubei Collaborative Innovation Center for Water Resources Security, Wuhan 430072, China
关键词:
水分特征曲线; Van Genuchten模型; 离心机法; 温度
Keywords:
moisture characteristic curve; Van Genuchten method; centrifuge method; temperature
分类号:
S152.7
摘要:
为了研究温度变化对土壤和石英砂持水特性差异的影响机理，在离心机试验的基础上结合理论分析，对不同温度下土壤和石英砂水分特征曲线实测数据、低吸力段比水容及Van Genuchten经验模型的拟合参数进行了研究分析。结果表明：温度的变化对土壤水分特征曲线的位置影响显著，对曲线的走势无太大影响；而对于石英砂样本受温度变化的影响并不明显；温度对土壤持水能力的影响很大部分是由土壤中水分的性质和土壤自身性质共同决定的；同时，结合比水容的概念和水分特征曲线的VG模型参数较准确地评价温度变化下两种供试样品的持水性能和水分的有效程度。
Abstract:
In order to study the change of temperature on the influence mechanism of difference of water-holding capability of soil and quartz sand, based on the centrifuge experiments we may combine theoretical analysis to check measured data of quartz and soil water characteristic curves, the water volume and fitting parameters of Van Genuchten empirical model at different temperatures. The results showed that temperature change had the significant effect on the position of the soil-water characteristic curve and no effect on the trend of curve; however, temperature changes had no obvious impact on quartz sand sample; the effect of temperature on water holding ability of soil would rather mostly be determined by soil humidity characteristics and the nature of soil itself than the nature of soil itself directly; at the same time, we can combine the concept of specific water volume and VG model parameter to assess accurately water-holding capacity and available extent of water of two test samples under temperature variation.

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备注/Memo

收稿日期:2016-05-18;改回日期:2016-05-23。
基金项目:国家自然科学基金项目（51409152）；湖北省自然科学基金项目（2012FFB03802）
作者简介:董晓华(1972-),男,湖北秭归人,教授,博士,主要从事水文水资源研究。E-mail:xhdong@ctgu.edu.cn;姚着喜(1990-),男(回族),安徽阜阳人,研究生,硕士,主要从事水文循环模型研究。E-mail:yaozhuoxi2007@126.com
通讯作者:彭涛(1973-),男,湖南保靖人,副教授,博士,主要从事水文水资源及生态水文研究。E-mail:pengtao306@163.com

更新日期/Last Update: 1900-01-01