A TRANSFER-FUNCTION MODEL OF SOLUTE TRANSPORT THROUGH SOIL .2. ILLUSTRATIVE APPLICATIONS

被引：92

作者：

WHITE, RE ^{[1
]}

DYSON, JS ^{[1
]}

HAIGH, RA ^{[1
]}

JURY, WA ^{[1
]}

SPOSITO, G ^{[1
]}

机构：

[1] UNIV OXFORD,SOIL SCI LAB,OXFORD OX1 3PF,ENGLAND

来源：

WATER RESOURCES RESEARCH | 1986年 / 22卷 / 02期

关键词：

FLOW OF WATER - Unsteady Flow - SOLUTIONS - Trace Analysis;

D O I：

10.1029/WR022i002p00248

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The results of field and laboratory studies of solute transport through undisturbed soils following narrow pulse or step-change inputs of soluble salts or bacteria were analyzed using the transfer function equation developed in paper 1 (Jury et al. , this issue) of this series. The travel time probability density function observed for Br and Cl during unsteady flow in an unsaturated, well structured clay suggested a two-component mechanism comprising fast solute transport through large, interped voids and slow to negligible transport through small, intraped voids. The modal and median travel times varied with soil type, initial water content, and rate of water input. The fractional volume of water that participated in solute transport, theta //s//t, was calculated from the rate of water input and the median solute travel time.

引用

页码：248 / 254

页数：7

共 16 条

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