The Changing Alpine Treeline Book

The Changing Alpine Treeline


  • Author : David R. Butler
  • Publisher : Elsevier
  • Release Date : 2009-03-13
  • Genre: Science
  • Pages : 224
  • ISBN 10 : 0080957099
  • Total Read : 92
  • File Size : 8,5 Mb

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The Changing Alpine Treeline Summary:

The alpine treeline ecotone (ATE) is an area of transition high on mountains where closed canopy forests from lower elevations give way to the open alpine tundra and rocky expanses above. Alpine tundra is an island biome and its ecotone with forest is subject to change, and like oceanic islands, alpine tundra is subject to invasion – or the upward advance of treeline. The invasion of tundra by trees will have consequences for the tundra biome as invasion does for other island flora and fauna. To examine the invasibility of tundra we take a plant’s-eye-view, wherein the local conditions become extremely important. Among these local conditions, we find geomorphology to be exceptionally important. We concentrate on aspects of microtopography (and microgeomorphology) and microclimate because these are the factors that matter: from the plant’s-eye-view, but we pay attention to multiple scales. At coarse scales, snow avalanches and debris flows are widespread and create “disturbance treelines whose elevation is well below those controlled by climate. At medium scales, turf-banked terraces create tread-and-riser topography that is a difficult landscape for a tree seedling to survive upon because of exposure to wind, dryness, and impenetrable surfaces. At fine scales, turf exfoliation of the fronts of turf-banked risers, and boulders, offer microsites where tree seedlings may find shelter and are able to gain a foothold in the alpine tundra; conversely, however, surfaces of needle-ice pans and frost heaving associated with miniature patterned ground production are associated with sites inimical to seedling establishment or survival. We explicitly consider how local scale processes propagate across scales into landscape patterns. The objective of this book is to examine the controls on change at alpine treeline. All the papers are focused on work done in Glacier National Park, Montana, USA. Although any one place is limiting, we are able to examine the alpine treelin

Alpine Treelines Book

Alpine Treelines


  • Author : Christian Körner
  • Publisher : Springer Science & Business Media
  • Release Date : 2012-05-26
  • Genre: Science
  • Pages : 220
  • ISBN 10 : 9783034803960
  • Total Read : 75
  • File Size : 11,7 Mb

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Alpine Treelines Summary:

Alpine treelines mark the low-temperature limit of tree growth and occur in mountains world-wide. Presenting a companion to his book Alpine Plant Life, Christian Körner provides a global synthesis of the treeline phenomenon from sub-arctic to equatorial latitudes and a functional explanation based on the biology of trees. The comprehensive text approaches the subject in a multi-disciplinary way by exploring forest patterns at the edge of tree life, tree morphology, anatomy, climatology and, based on this, modelling treeline position, describing reproduction and population processes, development, phenology, evolutionary aspects, as well as summarizing evidence on the physiology of carbon, water and nutrient relations, and stress physiology. It closes with an account on treelines in the past (palaeo-ecology) and a section on global change effects on treelines, now and in the future. With more than 100 illustrations, many of them in colour, the book shows alpine treelines from around the globe and offers a wealth of scientific information in the form of diagrams and tables.

Alpine and Polar Treelines in a Changing Environment Book

Alpine and Polar Treelines in a Changing Environment


  • Author : Gerhard Wieser
  • Publisher : MDPI
  • Release Date : 2020-04-09
  • Genre: Science
  • Pages : 268
  • ISBN 10 : 9783039286300
  • Total Read : 78
  • File Size : 16,8 Mb

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Alpine and Polar Treelines in a Changing Environment Summary:

Concerns have been raised with respect to the state of high-altitude and high-latitude treelines, as they are anticipated to undergo considerable modifications due to global changes, and especially due to climate warming. As high-elevation treelines are temperature-limited vegetation boundaries, they are considered to be sensitive to climate warming. As a consequence, in this future, warmer environment, an upward migration of treelines is expected because low air and root-zone temperatures constrain their regeneration and growth. Despite the ubiquity of climate warming, treeline advancement is not a worldwide phenomenon: some treelines have been advancing rapidly, others have responded sluggishly or have remained stable. This variation in responses is attributed to the potential interaction of a continuum of site-related factors that may lead to the occurrence of locally conditioned temperature patterns. Competition amongst species and below-ground resources have been suggested as additional factors explaining the variability in the movement of treelines. This Special Issue (book) is dedicated to the discussion of treeline responses to changing environmental conditions in different areas around the globe.

The Changing Alpine Treeline Book

The Changing Alpine Treeline


  • Author : David R. Butler
  • Publisher : Elsevier Science
  • Release Date : 2009
  • Genre: Science
  • Pages : 199
  • ISBN 10 : 0444533648
  • Total Read : 96
  • File Size : 11,8 Mb

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The Changing Alpine Treeline Summary:

The alpine treeline ecotone (ATE) is an area of transition high on mountains where closed canopy forests from lower elevations give way to the open alpine tundra and rocky expanses above. Alpine tundra is an island biome and its ecotone with forest is subject to change, and like oceanic islands, alpine tundra is subject to invasion or the upward advance of treeline. The invasion of tundra by trees will have consequences for the tundra biome as invasion does for other island flora and fauna. To examine the invasibility of tundra we take a plant's-eye-view, wherein the local conditions become extremely important. Among these local conditions, we find geomorphology to be exceptionally important. We concentrate on aspects of microtopography (and microgeomorphology) and microclimate because these are the factors that matter: from the plant's-eye-view, but we pay attention to multiple scales. The objective of this book is to examine the controls on change at alpine treeline. All the papers are focused on work done in Glacier National Park, Montana, USA. Although any one place is limiting, we are able to examine the alpine treeline here in some detail - and an advantage is that the treeline ecotone in Glacier National Park is quite variable in itself due to the underlying variability in geomorphology at multiple scales.

Global Change and Mountain Regions Book

Global Change and Mountain Regions


  • Author : Uli M. Huber
  • Publisher : Springer Science & Business Media
  • Release Date : 2006-03-09
  • Genre: Science
  • Pages : 652
  • ISBN 10 : 9781402035081
  • Total Read : 90
  • File Size : 13,6 Mb

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Global Change and Mountain Regions Summary:

This book gives an overview of the state of research in fields pertaining to the detection, understanding and prediction of global change impacts in mountain regions. More than sixty contributions from paleoclimatology, cryospheric research, hydrology, ecology, and development studies are compiled in this volume, each with an outlook on future research directions. The book will interest meteorologists, geologists, botanists and climatologists.

Signs of Climate Change in Nordic Nature Book

Signs of Climate Change in Nordic Nature


  • Author : Nordisk Ministerråd
  • Publisher : Nordic Council of Ministers
  • Release Date : 2009
  • Genre: Nature
  • Pages : 52
  • ISBN 10 : 9789289318891
  • Total Read : 97
  • File Size : 18,8 Mb

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Signs of Climate Change in Nordic Nature Summary:

In the project we show that climate change is not only affecting a few individual species or habitats in the Nordic region, but that number of changes occur concurrently and at many scales.

Trees in a Changing Environment Book

Trees in a Changing Environment


  • Author : Michael Tausz
  • Publisher : Springer
  • Release Date : 2014-08-26
  • Genre: Science
  • Pages : 287
  • ISBN 10 : 9789401791007
  • Total Read : 67
  • File Size : 15,9 Mb

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Trees in a Changing Environment Summary:

This book delivers current state-of-the-science knowledge of tree ecophysiology, with particular emphasis on adaptation to a novel future physical and chemical environment. Unlike the focus of most books on the topic, this considers air chemistry changes (O3, NOx, and N deposition) in addition to elevated CO2 effects and its secondary effects of elevated temperature. The authors have addressed two systems essential for plant life: water handling capacity from the perspective of water transport; the coupling of xylem and phloem water potential and flow; water and nutrition uptake via likely changes in mycorrhizal relationships; control of water loss via stomata and its retention via cellular regulation; and within plant carbon dynamics from the perspective of environmental limitations to growth, allocation to defences, and changes in partitioning to respiration. The authors offer expert knowledge and insight to develop likely outcomes within the context of many unknowns. We offer this comprehensive analysis of tree responses and their capacity to respond to environmental changes to provide a better insight in understanding likelihood for survival, as well as planning for the future with long-lived, stationary organisms adapted to the past: trees.