Drawing from a decade-long collaboration between Japan and Russia, this important volume presents the first major synthesis of current knowledge on the ecophysiology of the coniferous forests growing on permafrost at high latitudes. It presents ecological data for a region long inaccessible to most scientists, and raises important questions about the global carbon balance as these systems are affected by the changing climate.
Making up around 20% of the entire boreal forests of the northern hemisphere, these â€˜permafrost forest ecosystemsâ€™ are subject to particular constraints in terms of temperature, nutrient availability, and root space, creating exceptional ecosystem characteristics not known elsewhere. This authoritative text explores their diversity, structure, dynamics and physiology. It provides a comparison of these forests in relation to boreal forests elsewhere, and concludes with an assessment of the potential responses of this unique biome to climate change.
The book will be invaluable to advanced students and researchers interested in boreal vegetation, forest ecology, silviculture and forest soils, as well as to researchers into climate change and the global carbon balance.
Principal audience will be university students (both undergraduate and graduate levels) and scientists in the fields of forest ecology, vegetation science, silviculture, forest soils and forest management. Scientists of various other fields related to the study of global warming may also find this volume useful, since it deals with carbon accumulation in ecosystems and its interaction with soil nitrogen availability.
Part 1: Ecological setting. 1. Introduction: permafrost forest biome and brief history of investigation; A. Osawa, O.A. Zyryanova.- 2. Floristic diversity and its geographical background in Central Siberia; O.A. Zyryanova et al.- 3. Geographic distribution and genetics of Siberian larch; A.P. Abaimov.- 4. Wildfire ecology in continuous permafrost zone; M.A. Sofronov, A.V. Volokitina.- 5. Recovery of forest vegetation after fire disturbance; O.A. Zyryanova et al.- Part 2: Ecosystem dynamics and function. 6. Biomass and productivity of Siberian larch forest ecosystems; T. Kajimoto et al.- 7. Development of stand structure in larch forests; A. Osawa, T. Kajimoto.- 8. Soil carbon and nitrogen storage in Siberian permafrost region; Y. Matsuura et al.- 9. Soil respiration in larch forests; T. Morishita et al.- 10. Net ecosystem exchange in permafrost larch ecosystems; Y. Nakai.- 11. Behavior of dissolved organic carbon in larch ecosystems; A.S. Prokushkin et al.- 12. Soil nitrogen dynamics in larch ecosystem; N. Tokuchi et al.- 13. Hydrological aspects in a Siberian larch forest; T. Ohta.- Part 3: Tree physiology and the environment. 14. Photosynthesis of larch trees; T. Koike et al.- 15. Respiration of larch trees; S. Mori et al.- 16. Root system development of Siberian larch trees; T. Kajimoto.- 17. Seasonal changes in radial growth of Larix gmelinii in central Siberia in relation to its climatic responses; K. Yasue et al.- 18. Dendrochronology of larch trees growing on Siberian permafrost; E.A. Vaganov, A.V. Kirdyanov.- Part 4: Ecosystem comparisons and responses to climate change. 19. Structure and dynamics of larch forests in Daxingan Mountains, northeast China; F. Shi et al.- 20. Carbon dynamics of larch plantations in northeast China and Japan; M. Jomura et al.- 21. The role of ectomycorrhiza in boreal forest ecosystems; L. Qu et al.- 22. From vegetation zones to climatypes: effects of climate warming on Siberian ecosystems; N.M. Tchebakova et al.- 23. Effects of global warming on ecophysiological responses of larch trees; T. Koike et al.- Part 5: Synthesis and conclusion. 24. Characteristics of larch forests in Siberia and potential responses to warming climate; A. Osawa et al.-