عنوان

Nitrogen in Terrestrial Ecosystems :

3642751687

9783642751684

b538546

Nitrogen in Terrestrial Ecosystems :

[Book]

Questions of Productivity, Vegetational Changes, and Ecosystem Stability

by Carl Olof Tamm.

Berlin, Heidelberg

Springer Berlin Heidelberg

1991

(xii, 116 pages 39 illustrations)

Ecological Studies, Analysis and Synthesis, 81.

1 Introduction: Geochemical Occurrence of Nitrogen. Natural Nitrogen Cycling and Anthropogenic Nitrogen Emissions --;2 Nitrogen in Plants and Soils: Physiological and Microbiological Background for Biological Nitrogen Turnover --;2.1 Nitrogen in Plants --;2.2 Nitrogen in Soils: Transformations, Uptake, Losses --;2.3 Nitrogen and Transport Mechanisms in Terrestrial Ecosystems --;3 Nitrogen-Limited and Nitrogen-Depleted Terrestrial Ecosystems: Ecological Characteristics --;3.1 Definitions --;3.2 Nitrogen in Forest Successions --;3.3 Biological Control of Nitrogen Cycling --;3.4 Nitrogen Depletion by Fire and Other Disturbances --;3.5 Nitrogen Depletion by Removal of Biomass or Litter --;3.6 Concluding Remarks --;4 Nitrogen-Enriched and Nitrogen-Saturated Ecosystems --;4.1 Definitions --;4.2 Sites Naturally Enriched with Nitrogen --;4.3 Nitrogen Enrichment by Preindustrial Agricultural and Pastural Land Use --;4.4 Enrichment by Chemical Fertilizers and Urban Waste Products --;4.5 Enrichment by Atmospheric Emissions from Modern Industrial and Agricultural Activities --;5 Consequences of Increased Nitrogen Supply to Forests and Other Natural and Seminatural Terrestrial Ecosystems --;5.1 Changes in Vegetation and Fauna --;5.2 Soil Chemical and Biological Changes, Including Nitrogen Losses to Groundwater and Atmosphere --;5.3 Acute Damage to Plants Associated with Emissions of Nitrogen Compounds --;5.4 Interactions Between Effects of Anthropogenic Nitrogen Emissions and Other Human Impacts on Terrestrial Ecosystems --;6 Conclusions --;References.

Nitrogen is a key element in ecosystem processes. Aspects of local and global changes in nitrogen in both undisturbed and disturbed conditions are discussed. Emphasis is placed on natural and anthropogenic transfer of nitrogen between ecosystems and also on the interaction of nitrogen with other bioelements.

Agriculture.

Biochemistry.

Life sciences.

by Carl Olof Tamm.

Carl Olof Tamm

[Book]

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