Biomass distributions in dwarf tree, krummholz, and tundra vegetation in the alpine treeline ecotone
نویسندگان
چکیده
منابع مشابه
Distribution and biomass dynamics of the alpine treeline ecotone across the western United States
The alpine treeline ecotone is primarily caused by climate at continental and regional scales, but at finer scales exhibits increasing complexity and linkages with abiotic factors. In order to better understand the dynamics and geographic properties of treeline, a three-pronged study was conducted. The study’s first objective investigated what factors account for local treeline variation by com...
متن کاملTree recruitment in the Forest-tundra Ecotone
ACKNOWLEDGEMENTS: This thesis is a product under the International Polar Year (IPY) core project PPS Arctic (http://ppsarctic.nina.no) which was financially supported by the Research Council of Norway via the IPY grant 176065/S30 to A. Hofgaard. I would like to thank my supervisors Lars Söderström (NTNU) and Annika Hofgaard (NINA) for their time and effort in helping me build and structure this...
متن کاملTree Height-Diameter Relationships in the Alpine Treeline Ecotone Compared with Those in Closed Forests on Changbai Mountain, Northeastern China
Height-diameter relationship is one of the most important stature characteristics of trees. It will change with climatic conditions because height and diameter growth displays different sensitivities to climatic factors such as temperature. Detecting and understanding changes in the stature of trees growing along altitudinal gradients up to their upper limits can help us to better understand th...
متن کاملSoil warming and CO2 enrichment induce biomass shifts in alpine tree line vegetation.
Responses of alpine tree line ecosystems to increasing atmospheric CO2 concentrations and global warming are poorly understood. We used an experiment at the Swiss tree line to investigate changes in vegetation biomass after 9 years of free air CO2 enrichment (+200 ppm; 2001-2009) and 6 years of soil warming (+4 °C; 2007-2012). The study contained two key tree line species, Larix decidua and Pin...
متن کاملVegetation Dynamics in Treeline Ecotone of Langtang National Park, Central Nepal
A study was carried out at the treeline ecotone (3,730m-3,950m asl) of Langtang National Park in central Nepal with an aim to document the impact of climatic warming on ecological chracteristics. Three sampling sites were selected at Chaurikharka and Lauribina, where no serious anthropogenic pressure was noticed. The nearest meteorological station has records of climatic warming in recent years...
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ژورنال
عنوان ژورنال: Physical Geography
سال: 2015
ISSN: 0272-3646,1930-0557
DOI: 10.1080/02723646.2015.1050954