عنوان

Air pollution :

3642604560

9783642604560

b571540

Air pollution :

[Book]

dimensions, trends, and interactions with a forest ecosystem

W. Michaelis.

Berlin ; New York

Springer

©1997.

(xi, 177 pages) : illustrations, maps

1 Introduction --; References --; 2 The Investigation Site --; References --; 3 Research Concept and Coordination --; References --; 4 General Outline of the Measuring Station --; References --; 5 Experimental Procedures --; 5.1. Sampling Techniques --; 5.2 Analytical Techniques --; References --; 6 Methodology for the Determination of Atmospheric Deposition and of Fluxes within the Ecosystem Compartments --; 6.1 Basic Considerations on Dry Deposition --; 6.2 Aerosol Measurements --; 6.3 Turbulent Fluxes in the Boundary Layer --; 6.4 Fluxes in the Stand and the Seepage Water --; References --; 7 Trace Elements in Rainwater: Concentrations and Wet Deposition --; 7.1 Concentrations of Dissolved and Particulate Constituents --; 7.2 Wet Deposition --; References --; 8 Deposition of Anions and Cations Via Precipitation --; 8.1 Meteorology and Source-Receptor Relationship --; 8.2 Deposition of SO42-, NO3-, Cl-, F- and NH4+: Mean Values, Temporal Variations and Long-Term Trends --; 8.3 pH Values and H+-Ion Deposition --; References --; 9 Trace Elements in Size-Fractionated Particulates: Concentrations and Dry Deposition into a Forest Ecosystem --; 9.1 Differential Trace Element Concentrations --; 9.2 Dry Deposition of Trace Elements --; References --; 10 Total Deposition of Trace Elements --; References --; 11 Element Supply and Element Fluxes in the Forest Ecosystem Compartments --; 11.1 Element Supply in the Mineral Soil and the Humus Layer --; 11.2 Biomass and Element Content in the Tree Compartments --; 11.3 Balance of Element Fluxes --; References --; 12 Concentrations and Deposition of Gaseous Pollutants: SO2, NO2, NO, NH3 and O3 --; 12.1 Gas Concentrations and Weather Conditions --; 12.2 Mean Values, Temporal Variations and Long-Term Trends of the Gas Concentrations --; 12.3 Nocturnal Ozone Maxima --; 12.4 Dry Deposition: Mean Values, Temporal Variations and Long-Term Trends --; 12.5 Deposition Velocities --; References --; 13 Impact of Gaseous Pollutants on the Forest Ecosystem --; 13.1 Interrelations Between the Concentrations of Pollutants and Carbon Dioxide --; 13.2 Associated Vertical Fluxes --; References --; 14 Summary and Conclusions --; References.

This book presents the final evaluation of a multidisciplinary study on air pollution at a Norway spruce stand in North Germany and on the interactions of atmospheric constituents with the forest ecosystem. Some of the special features of this research work are the application of advanced trace analysis techniques, the use of improved methods for quantifying extensively the dry deposition, the determination of element and gas fluxes including their balances as well as the assessment of the responses of the forest ecosystem. Comprehensive data are presented on the nutrient and carbon dioxide budget. Other subjects refer to the seasonal variations and the long-term trends of air pollution.

Forest declines -- Germany -- Hamburg Region.

Norway spruce -- Ecology -- Germany -- Hamburg Region.

Norway spruce -- Effect of air pollution on -- Germany -- Hamburg Region.

W. Michaelis.

W Michaelis

[Book]

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