Biogeochemistry of small catchments : a tool for by Jiří V Černý; Bedr̆ich Moldan

By Jiří V Černý; Bedr̆ich Moldan

Exceptional multinational individuals current examine of small catchments to envision numerous environmental difficulties, in particular these of acidification, woodland administration and land-use alterations. Divided into components, it introduces theoretical suggestions by way of a evaluate of atmospheric deposition and overview of weathering and erosion approaches. the second one part bargains with the technique of the given self-discipline, stressing novel methods and discussing difficulties

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Extra info for Biogeochemistry of small catchments : a tool for environmental research ; [summary of meeting held in Most, Czechoslovakia Nov. 1990]

Example text

In the context of ECE Integrated Monitoring Programme, studies in small catchments are used for determining and predicting the state of ecosystems in a long-term perspective, specifically with respect to spatial and time variations of air pollutants (Nihlgard and Pylvanainen, 1992). Small catchment research is relevant in relation to the study of global change (Eddy, 1992) and we hope that some connection will be established with ICSU's International Geosphere-Biosphere Programme (IGBP). Several factors should be stressed: 1.

The chemical composition of natural waters strongly reflects the geology of the catchments in which they originate. The importance of the very small-scale local geological and geochemical features such as veins and other small geochemical bodies may be disproportionately important for the biogeochemical processes in catchments. Erosive processes remove the products of physical and chemical weathering. Water is the primary agent for erosion and transport of the residual materials formed by weathering.

Soc. Civ. Eng. 108: 455-472. Christophersen, N. and Neal, C. (1990) Linking hydrological, geochemical, and soil chemical processes on the catchment scale-An interplay between modeling and field work. Water Resour. Res. 26: 3077-3086. Christophersen, N. and Wright, RE (1981) Sulfate budget and a model for sulfate concentrations in stream water at Birkenes, a small forested catchment in Southernmost Norway. Water Resour. Res. 17: 377-389. M. and Wright, RE (1982) A model for streamwater chemistry at Birkenes, Norway.

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