EVALUATION OF POROUS CERAMIC CUPS FOR MONITORING SOIL-WATER ALUMINUM IN ACID SOILS - COMMENT

被引：16

作者：

HUGHES, S

REYNOLDS, B

机构：

[1] Institute of Terrestrial Ecology, Bangor Research Station, Bangor, Gwynedd, LLS7 2LQ, Penrhos Road

来源：

JOURNAL OF SOIL SCIENCE | 1990年 / 41卷 / 02期

关键词：

D O I：

10.1111/j.1365-2389.1990.tb00067.x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Following recent observations by Raulund‐Rasmussen (1989) implicating A1 contamination of soil solutions isolated by suction‐cup samplers, A1 release from porous ceramic cups in acid solutions was investigated. In our studies a flush of Al, followed by a gradual decrease in leaching over successive extractions was observed. The amount of Al released was retarded by the presence of 37 μmol dm−3 of A1 in solution. Gibbsite solubility controls were not observed; all solutions isolated by the cups were undersaturated with respect to amorphous gibbsite. The cups evaluated in this study are appropriate for sampling acidic soil solution, provided they are suitably pretreated and then equilibrated in the field before use. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：325 / 328

页数：4

共 8 条

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