MODELING AL-SOLUBILITY CONTROLS IN AN ACID FOREST SOIL, SOLLING, GERMANY

被引：25

作者：

WESSELINK, LG ^{[1
]}

MULDER, J ^{[1
]}

机构：

[1] AGR UNIV WAGENINGEN,DEPT SOIL SCI & GEOL,6700 AA WAGENINGEN,NETHERLANDS

来源：

ECOLOGICAL MODELLING | 1995年 / 83卷 / 1-2期

关键词：

ACIDIFICATION; ALUMINUM; ORGANIC MATTER; COMPLEXATION;

D O I：

10.1016/0304-3800(95)00090-I

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Hypotheses for controls of the Al solubility in acid forest soils were tested, using the large data set of soil- and solution chemistry of the Selling Spruce site (Germany). The observed low Al3+-H+ reaction stoichiometries (+/-0.3) as well as the measured increase of CEC in the surface soil with time, support the hypothesis of Al solubility control by complexation to soil organic matter (SOM). Incorporation of SOM-AI equilibrium in a comprehensive soil acidification model improves simulations of seasonal and long-term pH changes in soil solutions at Solling.

引用

页码：109 / 117

页数：9

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