含碎石土壤水分入渗试验研究

王慧芳; 邵明安

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含碎石土壤水分入渗试验研究

王慧芳, 邵明安

文章导航 > 水科学进展 > 2006 > 17(5): 604-609

王慧芳, 邵明安. 含碎石土壤水分入渗试验研究[J]. 水科学进展, 2006, 17(5): 604-609.

引用本文:

王慧芳, 邵明安. 含碎石土壤水分入渗试验研究[J]. 水科学进展, 2006, 17(5): 604-609.

WANG Hui-fang, SHAO Ming-an. Experimental study on water infiltration of soil containing rock fragments[J]. Advances in Water Science, 2006, 17(5): 604-609.

Citation:

WANG Hui-fang, SHAO Ming-an. Experimental study on water infiltration of soil containing rock fragments[J]. Advances in Water Science, 2006, 17(5): 604-609.

含碎石土壤水分入渗试验研究

王慧芳^1,2,
邵明安^1,

1.
中国科学院、水利部水土保持研究所, 西北农林科技大学水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西, 杨凌, 712100;
2.
中国科学院研究生院, 北京, 100101

基金项目: 国家自然科学基金资助项目(5047906390502006);西北农林科技大学“创新团队”计划资助

详细信息

作者简介:
王慧芳(1979- ),女,内蒙古海拉尔人,博士研究生,主要从事土壤物理和水资源利用等方面的研究.E-mail:ylwhf2004@tom.com

通讯作者:
邵明安,E-mail:mashao@ms.iswc.ac.cn

中图分类号: S152.7

Experimental study on water infiltration of soil containing rock fragments

WANG Hui-fang^1,2,
SHAO Ming-an^1
,

1.
State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Northwest A&F University, Yangling 712100, China;
2.
Graduate School of Chinese Academy of Sciences, Beijing 100101, China

Funds: The study is financially supported by the National Natural Science Foundation of China(50479063,90502006)and the "Innovation Team" Program of Northwest A&F University.

摘要: 采用一维积水垂直入渗法测定含碎石土壤的入渗过程,分析碎石含量和碎石组成对土壤水分运动影响。对试验数据采用Kostiakov入渗公式拟合,得出反映入渗速率的拟合参数比值与土石比成幂函数关系;采用简略的Philip垂直入渗方程幂级数解拟合湿润峰随时间的变化,拟合精度高,并发现拟合参数与土石比仍成幂函数关系。采用简单相关分析碎石粒径对入渗过程影响,得出粒径2~3 mm碎石与入渗过程成显著的负相关关系,而>25 mm碎石有利于入渗。研究结果可为含碎石土壤的水循环提供重要的基础。
- 碎石 /
- 入渗率 /
- 湿润峰 /
- 土石比 /
- 土壤水分
Abstract: Field soils contain some rock fragments,particularly,forest soil that usually has considerable amount of rock fragments.However,there is little information on the effects of the amount and the size of rock fragment on the infiltration in research paper.Based on the experiment of one-dimensional vertical infiltration in laboratory conditions,the effect of different soil-stone ratios and constitutes of rock fragments on the infiltration rate and the wetting front of the mixtures are studied.The results show that the infiltration rate and the wetting front increase with the increase of coarse-fragments for a given time.The relationship between the infiltration rate and the time can be described by the Kostiakov infiltration model;the relationship between the wetting front and time can be fitted well by one short power progressional solution of the Philip infiltration equation; and the parameters of the Kostiakov infiltration model and one short power progressional solute of the Philip infiltration equation are all fitted the power equation with the increase of soil-stone.The effect of the size and constitutions of rock fragments on the infiltration rate is expressed in the content of rock fragment after correlate analyses.In addition,rock fragments with 2-3 mm in diameter give negative correlation with the infiltration process,while rock fragments greater than 25mm in diameter are favorable to water flow in the mixture.The results of the present study may provide important data and be useful for the profound understanding of water cycle in stony soils.
- rock fragment(coarse fragment) /
- infiltration rate /
- wetting front /
- soil-stone ratio /
- soil moisture

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含碎石土壤水分入渗试验研究

王慧芳^1,2,
邵明安^1,

1. 中国科学院、水利部水土保持研究所, 西北农林科技大学水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西, 杨凌, 712100;

2. 中国科学院研究生院, 北京, 100101

基金项目: 国家自然科学基金资助项目(5047906390502006);西北农林科技大学“创新团队”计划资助

作者简介:
王慧芳(1979- ),女,内蒙古海拉尔人,博士研究生,主要从事土壤物理和水资源利用等方面的研究.E-mail:ylwhf2004@tom.com

通讯作者: 邵明安,E-mail:mashao@ms.iswc.ac.cn

收稿日期: 2005-03-12
修回日期: 2005-06-27
刊出日期: 2006-09-25

中图分类号: S152.7

关键词:

碎石 /

入渗率 /

湿润峰 /

土石比 /

土壤水分

摘要: 采用一维积水垂直入渗法测定含碎石土壤的入渗过程,分析碎石含量和碎石组成对土壤水分运动影响。对试验数据采用Kostiakov入渗公式拟合,得出反映入渗速率的拟合参数比值与土石比成幂函数关系;采用简略的Philip垂直入渗方程幂级数解拟合湿润峰随时间的变化,拟合精度高,并发现拟合参数与土石比仍成幂函数关系。采用简单相关分析碎石粒径对入渗过程影响,得出粒径2~3 mm碎石与入渗过程成显著的负相关关系,而>25 mm碎石有利于入渗。研究结果可为含碎石土壤的水循环提供重要的基础。

English Abstract

Experimental study on water infiltration of soil containing rock fragments

WANG Hui-fang^1,2,
SHAO Ming-an^1,

1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Northwest A&F University, Yangling 712100, China;

2. Graduate School of Chinese Academy of Sciences, Beijing 100101, China

Funds: The study is financially supported by the National Natural Science Foundation of China(50479063,90502006)and the "Innovation Team" Program of Northwest A&F University.

Received Date: 2005-03-12
Rev Recd Date: 2005-06-27
Publish Date: 2006-09-25

Keywords:

Abstract: Field soils contain some rock fragments,particularly,forest soil that usually has considerable amount of rock fragments.However,there is little information on the effects of the amount and the size of rock fragment on the infiltration in research paper.Based on the experiment of one-dimensional vertical infiltration in laboratory conditions,the effect of different soil-stone ratios and constitutes of rock fragments on the infiltration rate and the wetting front of the mixtures are studied.The results show that the infiltration rate and the wetting front increase with the increase of coarse-fragments for a given time.The relationship between the infiltration rate and the time can be described by the Kostiakov infiltration model;the relationship between the wetting front and time can be fitted well by one short power progressional solution of the Philip infiltration equation; and the parameters of the Kostiakov infiltration model and one short power progressional solute of the Philip infiltration equation are all fitted the power equation with the increase of soil-stone.The effect of the size and constitutions of rock fragments on the infiltration rate is expressed in the content of rock fragment after correlate analyses.In addition,rock fragments with 2-3 mm in diameter give negative correlation with the infiltration process,while rock fragments greater than 25mm in diameter are favorable to water flow in the mixture.The results of the present study may provide important data and be useful for the profound understanding of water cycle in stony soils.

王慧芳, 邵明安. 含碎石土壤水分入渗试验研究[J]. 水科学进展, 2006, 17(5): 604-609.

引用本文:

王慧芳, 邵明安. 含碎石土壤水分入渗试验研究[J]. 水科学进展, 2006, 17(5): 604-609.

WANG Hui-fang, SHAO Ming-an. Experimental study on water infiltration of soil containing rock fragments[J]. Advances in Water Science, 2006, 17(5): 604-609.

Citation:

WANG Hui-fang, SHAO Ming-an. Experimental study on water infiltration of soil containing rock fragments[J]. Advances in Water Science, 2006, 17(5): 604-609.