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.
