VERTICAL-DISTRIBUTION AND TRANSPORT OF MOLYBDENUM IN A LAKE WITH A SEASONALLY ANOXIC HYPOLIMNION

被引：37

作者：

MAGYAR, B ^{[1
]}

MOOR, HC ^{[1
]}

SIGG, L ^{[1
]}

机构：

[1] SWISS FED INST TECHNOL,SWISS FED INST WATER RESOURCES & WATER POLLUT CONTROL,CH-8092 ZURICH,SWITZERLAND

来源：

LIMNOLOGY AND OCEANOGRAPHY | 1993年 / 38卷 / 03期

关键词：

D O I：

10.4319/lo.1993.38.3.0521

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Distribution and trends of Mo concentrations in the seasonally anoxic Lake Greifen were investigated over 15 months. Mo in water samples and settling particles was determined by catalytic adsorption polarography and inductively coupled plasma mass spectrometry. Mo concentrations in the epilimnion were usually homogeneous at approximately 0.48 mug liter-1. A significant decrease with depth was found during the stratification period. The lowest Mo concentrations (0.31 mug liter-1) were found in the presence of H2S near the sediment. A vertical flux of particle-bound Mo of 1. 1-4.6 mug m-2 d-1 was found. The Mo concentration-depth profiles result from a combination of different transport mechanisms that are compared by computer model calculations.

引用

页码：521 / 531

页数：11

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