Tundra fire alters vegetation patterns more than the resultant thermokarst
نویسندگان
چکیده
منابع مشابه
Recent Arctic tundra fire initiates widespread thermokarst development
Fire-induced permafrost degradation is well documented in boreal forests, but the role of fires in initiating thermokarst development in Arctic tundra is less well understood. Here we show that Arctic tundra fires may induce widespread thaw subsidence of permafrost terrain in the first seven years following the disturbance. Quantitative analysis of airborne LiDAR data acquired two and seven yea...
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Grassland fire, as an important ecological factor, is quite influential in determining the structural and functional stability of ecosystem. In this work, the fire-induced changes on the vegetation and soil microbial community were studied in alpine meadow. Microbial community composition was assessed by phospholipid fatty acid (PLFA) analysis, and functional diversity was determined by Biolog ...
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A 1977 tundra fire burned a hillslope where prefire soils and vegetation ranged from poorly drained moist tussock-shrub tundra on the lower slopes to well-drained dwarf shrub tundra on the back slope and very poorly drained wet sedge meadow on the flat crest. We sampled the vegetation on this slope before the fire and at 8 sites following the fire at irregular intervals from 1 yr to 25 yr. Duri...
متن کاملThe response of Arctic vegetation and soils following an unusually severe tundra fire
Fire causes dramatic short-term changes in vegetation and ecosystem function, and may promote rapid vegetation change by creating recruitment opportunities. Climate warming likely will increase the frequency of wildfire in the Arctic, where it is not common now. In 2007, the unusually severe Anaktuvuk River fire burned 1039 km(2) of tundra on Alaska's North Slope. Four years later, we harvested...
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In this paper we argue for the necessity of an architectural description of a framework. We then analyze why design patterns on their own are insu cient for such a description and propose that a variety of complementary forms of documentation are needed to address the requirements of an architectural description. We claim that traditional artifacts of domain analysis and object-oriented design ...
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ژورنال
عنوان ژورنال: Polar Biology
سال: 2017
ISSN: 0722-4060,1432-2056
DOI: 10.1007/s00300-017-2236-7