Vegetation and Production Ecology of an Alaskan Arctic Tundra (eBook, PDF)

Redaktion: Tieszen, Larry L.

• Format: PDF

Produktbeschreibung

This volume on botanical research in tundra represents the culmination of four years of intensive and integrated field research centered at Barrow, Alaska. The volume summarizes the most significant results and interpretations of the pri mary producer projects conducted in the U.S. IBP Tundra Biome Program (1970-1974). Original data reports are available from the authors and can serve as detailed references for interested tundra researchers. Also, the results of most projects have been published in numerous papers in various journals. The introduction provides a brief overview of other ecosystem components. The main body presents the results in three general sections. The summary chapter is an attempt to integrate ideas and information from the previous papers as well as extant literature. In addition, this chapter focuses attention on pro cesses of primary production which should receive increased emphasis. Although this book will not answer all immediate questions, it hopefully will enhance future understanding of the tundra, particularly as we have studied it in Northern Alaska.

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Produktdetails

• Verlag: Springer New York
• Seitenzahl: 686
• Erscheinungstermin: 6. Dezember 2012
• Englisch
• ISBN-13: 9781461263074
• Artikelnr.: 43986643

Inhaltsangabe

Section I. Floristics, Vegetation, and Primary Production.- 1. Introduction.- 2. Vegetation, Floristics, and Phytogeography of Northern Alaska.- 3. Spatial and Temporal Variation of the Vegetation and its Productivity.- 4. Seasonal Dynamics of Above- and Belowground Production of Vascular Plants at Barrow, Alaska.- 5. Floristics, Phytogeography and Ecology of Arctic Alaskan Bryophytes.- 6. Composition and Bryomass of the Moss Layers of Two Wet-Tundra-Meadow Communities near Barrow, Alaska.- 7. The Role of Lichens in the Structure, Productivity, and Mineral Cycling of the Wet Coastal Alaskan Tundra.- 8. The Role of Algae in Tundra Soil.- 9. Ecto- and Endomycorrhizae of Arctic Plants at Barrow, Alaska.- Section II. Photosynthesis, Respiration and Water Relations.- 10. Photosynthesis in the Principal Barrow, Alaska Species: A Summary of Field and Laboratory Responses.- 11. Primary Production Processes in Arctic Bryophytes at Barrow, Alaska.- 12. Meteorological Assessment of CO2 Exchange Over an Alaskan Arctic Tundra.- 13. Constraints on Tundra Productivity: Photosynthetic Capacity in Relation to Solar Radiation Utilization and Water Stress in Arctic and Alpine Tundras.- 14. Some Aspects of Water Relations of Arctic and Alpine Regions.- 15. Radio-Tracer Measurement of Transpiration in Tundra Vegetation, Barrow, Alaska.- 16. Simulation of the Effect of the Tundra Vascular Plant Canopy on the Productivity of Four Moss Species.- Section III. Growth and the Allocation and Use of Mineral and Organic Nutrients.- 17. Translocation and Allocation of 14C-Photoassimilate by Dupontia fisheri.- 18. Growth, Turnover, and Respiration Rates of Roots and Tillers in Tundra Graminoids.- 19. The Interactions of Organic Nutrients, Soil Nitrogen, and Soil Temperature and Plant Growth and Survival in the Arctic Environment.- 20. Plant Nutrient Limitations of Tundra Plant Growth.- 21. Phosphate Uptake and Nutrient Utilization by Barrow Tundra Vegetation.- 22. Effects of Nitrogen and Phosphorus Fertilization on Carbohydrate and Nutrient Levels in Dupontia fisheri and Arctagrostis latifolia.- 23. Nitrogen Fixation in Arctic and Alpine Tundra.- 24. A Model of Plant Growth and Phosphorus Allocation for Dupontia fisheri in Coastal, Wet-Meadow Tundra.- 25. A Model of Carbohydrate, Nitrogen, Phosphorus Allocation and Growth in Tundra Production.- 26. A Simulation Model of Population Processes of Arctic Tundra Graminoids.- 27. Summary.- Appendix: Checklists of Vascular Plants, Bryophytes, and Lichens for the Alaskan U.S. IBP Tundra Biome Study Areas-Barrow, Prudhoe Bay, Eagle Summit.- Checklists.- References.