Results 41 to 50 of about 109,024 (352)
Winter Ecosystem Respiration and Sources of CO2 From the High Arctic Tundra of Svalbard: Response to a Deeper Snow Experiment [PDF]
, 2018 Currently, there is a lack of understanding on how the magnitude and sources of carbon (C) emissions from High Arctic tundra are impacted by changing snow cover duration and depth during winter.
Cooper, EJ +5 more
core +2 more sources
Do beaver ponds increase methane emissions along Arctic tundra streams?
Environmental Research Letters, 2023 Beaver engineering in the Arctic tundra induces hydrologic and geomorphic changes that are favorable to methane (CH _4 ) production. Beaver-mediated methane emissions are driven by inundation of existing vegetation, conversion from lotic to lentic ...
Jason A Clark +7 more
doaj +1 more source
Global Change Biology, 2021 Poleward shifts in species distributions are expected and frequently observed with a warming climate. In Arctic ecosystems, the strong warming trends are associated with increasing greenness and shrubification. Vertebrate herbivores have the potential to
J. Speed +5 more
semanticscholar +1 more source
Decreasing snow cover alters functional composition and diversity of Arctic tundra
Proceedings of the National Academy of Sciences of the United States of America, 2020 Significance Plant functional traits are central instruments in developing understanding and predicting biodiversity patterns and ecosystems processes.
P. Niittynen, R. Heikkinen, M. Luoto
semanticscholar +1 more source
Remote Sensing, 2021 As Arctic warming continues, its impact on vegetation greenness is complex, variable and inherently scale-dependent. Studies with multiple spatial resolution satellite observations, with 30 m resolution included, on tundra greenness have been implemented
Caixia Liu, Huabing Huang, Fangdi Sun
semanticscholar +1 more source
Longer thaw seasons increase nitrogen availability for leaching during fall in tundra soils [PDF]
, 2016 Climate change has resulted in warmer soil temperatures, earlier spring thaw and later fall freeze-up, resulting in warmer soil temperatures and thawing of permafrost in tundra regions.
Bowden, William B. +3 more
core +2 more sources
Arctic Science, 2019 Shifts in the extent of the boreal forest during past warm intervals and correlations between climate and the position of the forest–tundra ecotone suggest that recent temperature increases will facilitate forest expansion into tundra ecosystems. In this
Trevor C. Lantz +3 more
doaj +1 more source
Environmental Research Letters, 2021 An estimated 1700 Pg of carbon is frozen in the Arctic permafrost and the fate of this carbon is unclear because of the complex interaction of biophysical, ecological and biogeochemical processes that govern the Arctic carbon budget.
Erik J L Larson +8 more
doaj +1 more source
Drone data reveal heterogeneity in tundra greenness and phenology not captured by satellites
Environmental Research Letters, 2020 Data across scales are required to monitor ecosystem responses to rapid warming in the Arctic and to interpret tundra greening trends. Here, we tested the correspondence among satellite- and drone-derived seasonal change in tundra greenness to identify ...
Jakob Johan Assmann +4 more
semanticscholar +1 more source
Scientific Reports, 2020 To reveal the self-coordination mechanism of the fragile ecosystem of alpine tundra, we explored the relationship between soil microorganisms and other elements.
Mingze Tang +5 more
semanticscholar +1 more source