MEASURING THE DIFFUSION-COEFFICIENT OF RHIZOSPHERE EXUDATES IN SOIL .1. THE DIFFUSION OF NON-SORBING COMPOUNDS

被引：35

作者：

DARRAH, PR

机构：

[1] Department of Plant Sciences, University of Oxford, Oxford, OX1 3RB, South Parks Road

来源：

JOURNAL OF SOIL SCIENCE | 1991年 / 42卷 / 03期

关键词：

D O I：

10.1111/j.1365-2389.1991.tb00419.x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

A quick, convenient and robust method is presented for measuring the effective diffusion coefficients of non-sorbing solutes in soil. The method estimates the effective diffusion coefficient from a measured diffusion profile by optimizing the solution of a numerical simulation model describing the experimental system. The method was used to measure the effective diffusion coefficients of compounds found in root exudates.

引用

页码：413 / 420

页数：8

共 12 条

[1]

Crank J., 1975, MATH DIFFUSION, P93

[2]

Curl E.A., 1986, RHIZOSPHERE

[3] MODELS OF THE RHIZOSPHERE .1. MICROBIAL-POPULATION DYNAMICS AROUND A ROOT RELEASING SOLUBLE AND INSOLUBLE CARBON [J].