Wieser, Gerhard <br/><br/>
Alpine and Polar Treelines in a Changing Environment 

 -  MDPI - Multidisciplinary Digital Publishing Institute  2020 
 - 1 electronic resource (268 p.) 
<br/><br/> Open Access 
<br/><br/> 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. 
<br/><br/><br/>Creative Commons 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>books978-3-03928-631-7 9783039286317 9783039286300 
<br/><br/><label>Standard No.: </label>10.3390/books978-3-03928-631-7  doi 
<br/><br/><label>Subjects--Index Terms: </label>n/a tree seedling recruitment shrubline light quality higher altitude precipitation experimental rain exclusion Pinus cembra Changbai Mountain treeline dynamics fungal ecology thermal continentality tree regeneration elevational transect monitoring conifer shrub plant water availability permafrost foehn winds treeline Holocene nitrogen cycling carotenoids timberline 15N natural abundance spectrometer basal area increment palynology xylem embolism diversity elevational treeline European Alps temperature tree line winter stress photosynthetic pigments Pinus sibirica westerly winds relative air humidity ecosystem manipulation Larix decidua microsite polar treeline Central Austrian Alps Switzerland multi-stemmed growth form conifers forest edge history of treeline research soil drought dendroclimatology knowledge engineering Rocky Mountains apical control cloud postglacial alpine timberline space-for-time substitution climate change expert elicitation shoot elongation pit aspiration climate warming climate zone alpine treeline refilling Abies sibirica growth trend western Montana light quantity Picea abies Mediterranean climate forest climatology altitude environmental stress sub-Antarctic Erman’s birch photoinhibition tocopherol elevational gradients NDVI long-term trends sap flow peat tree seedlings Southern Ocean chlorophyll non-structural carbohydrates (NSCs) drought upward advance remote sensing data