Contrasting radiation and soil heat fluxes in Arctic shrub and wet sedge tundra
نویسندگان
چکیده
منابع مشابه
CO2 exchange between wet arctic tundra and the atmosphere
The exchange of carbon dioxide between wet arctic tundra and the atmosphere at the Lena River Delta, Northern Siberia L. Kutzbach, C. Wille, and E.-M. Pfeiffer Alfred Wegener Institute for Polar and Marine Research, Research Unit Potsdam, Telegrafenberg A43, 14473 Potsdam, Germany University of Hamburg, Institute of Soil Science, Allende-Platz 2, 20146 Hamburg, Germany now at: Ernst Moritz Arnd...
متن کاملSoil microbial and nutrient dynamics in a wet Arctic sedge meadow in late winter and early spring
Microbial activity is known to continue during the winter months in cold alpine and Arctic soils often resulting in high microbial biomass. Complex soil nutrient dynamics characterize the transition when soil temperatures approach and exceed 0 1C in spring. At the time of this transition in alphine soils microbial biomass declines dramatically together with soil pools of available nutrients. Th...
متن کاملMicrobial community composition and function across an arctic tundra landscape.
Arctic landscapes are characterized by a diversity of ecosystems, which differ in plant species composition, litter biochemistry, and biogeochemical cycling rates. Tundra ecosystems differing in plant composition should contain compositionally and functionally distinct microbial communities that differentially transform dissolved organic matter as it moves downslope from dry, upland to wet, low...
متن کاملBird Communities of the Arctic Shrub Tundra of Yamal: Habitat Specialists and Generalists
BACKGROUND The ratio of habitat generalists to specialists in birds has been suggested as a good indicator of ecosystem changes due to e.g. climate change and other anthropogenic perturbations. Most studies focusing on this functional component of biodiversity originate, however, from temperate regions. The Eurasian Arctic tundra is currently experiencing an unprecedented combination of climate...
متن کاملReindeer grazing increases summer albedo by reducing shrub abundance in Arctic tundra
Previous studies have shown that climate warming is causing shrub cover to increase at high latitudes. Increased shrub cover generally lowers surface albedo, which results in higher energy absorption and further warming. In parts of Fennoscandia, herbivory is known to control vegetation height and abundance, and thus preventing this positive feedback. Here, we combine field measurements of albe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biogeosciences
سال: 2016
ISSN: 1726-4189
DOI: 10.5194/bg-13-4049-2016