DECOMPOSITION RATE, CHEMICAL-COMPOSITION AND NUTRIENT RECYCLING OF NYMPHAEA-ALBA L FLOATING LEAF BLADE DETRITUS AS INFLUENCED BY PH, ALKALINITY AND ALUMINUM IN LABORATORY EXPERIMENTS

被引：36

作者：

KOK, CJ ^{[1
]}

MEESTERS, HWG ^{[1
]}

KEMPERS, AJ ^{[1
]}

机构：

[1] CATHOLIC UNIV NIJMEGEN,BIOGEOL LAB,6525 ED NIJMEGEN,NETHERLANDS

来源：

AQUATIC BOTANY | 1990年 / 37卷 / 03期

关键词：

D O I：

10.1016/0304-3770(90)90071-R

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Decomposition experiments were carried out in chemostats, using synthetic media, to investigate the influence of pH, Al and HCO3- concentrations on the decomposition and chemical composition of floating leaf material of Nymphaea alba L. Low pH and elevated Al concentrations inhibited decay. High HCO3- concentrations stimulated decomposition. N concentration in the detritus increased in all media, but more so in the non-acid treatments. In media containing HCO3-, Ca and Mg concentrations rose in the decaying material. In acid media, these elements disappeared rapidly from the detritus. N and P recycling from the detritus was slower in acid media because of the lower overall decay rate. The importance of these results for understanding the consequences of the acidification process in aquatic systems is discussed. © 1990.

引用

页码：215 / 227

页数：13

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