Results 151 to 160 of about 25,716 (256)
Terrestrial Regulation of Lacustrine Hg Deposition During Glacial‐Interglacial Cycles
Abstract Mercury (Hg) is a toxic trace metal. It is clear that its natural cycle has been highly disturbed by human activities, but there remains much to understand about how it operated before these perturbations. For example, the influences of glacial‐interglacial climate changes on the geochemical cycle of environmental Hg remain poorly understood ...
Alice R. Paine +7 more
wiley +1 more source
Climate warming is causing rapid permafrost degradation, including thaw-induced subsidence, potentially resulting in heightened carbon release. Nevertheless, our understanding of the levels and variations of carbon components in permafrost, particularly ...
Wen-Ting Zhou +11 more
doaj +1 more source
Permafrost degradation is a legal matter
New topical problems of permafrost degradation are identified in the context of a new sphere of legal regulation, primarily in the Arctic countries, with an emphasis on the legal problems of Russia. The object of research in the article consists of various legal consequences of the said phenomenon, manifested on very sensitive ecosystems, human ...
openaire +4 more sources
Abstract The Source Region of the Yangtze River (SRYR), located on the hinterland of the Tibetan Plateau (TP), is significantly affected by cryospheric components such as snow, permafrost and glaciers. Nevertheless, there remains a lack of consensus regarding the contribution of cryospheric meltwater to river runoff and its potential changes in a ...
Han Cheng +4 more
wiley +1 more source
I submit herewith the annual reports from the Agricultural and Forestry Experiment Station, School of Natural Resources and Agricultural Sciences, University of Alaska Fairbanks, for the period ending December 31, 2013.
core
Tipping elements and climate-economic shocks: Pathways toward integrated assessment
The literature on the costs of climate change often draws a link between climatic 'tipping points' and large economic shocks, frequently called 'catastrophes'. The use of the phrase 'tipping points' in this context can be misleading.
Kopp, Robert E. +3 more
core +1 more source
Hydrologic History Regulates Microbial Biofilm Diversity and Ecosystem Function
Hydrologic history regulates microbial biofilm diversity and ecosystem function. Historical flooding, but not drought, led to broad changes in composition and functional genes. ABSTRACT Aquatic biofilms are an understudied component of northern peatlands and are expected to play a more prominent role in ecosystem processes in areas where aquatic ...
Allison R. Rober +8 more
wiley +1 more source
Study on the temperature field change law of high speed railway subgrade in island permafrost region
To uncover the evolution pattern of the thermal state of high-speed railway subgrade in island permafrost region and to provide a basis for rational subgrade structure design, this study focuses on the island permafrost in the test section of the ...
Xiaohe Liu, Xiaohe Liu
doaj +1 more source
Methane fluxes, microbial activities and community structures in a wet tundra of the Lena Delta [PDF]
Wet tundra environments of the Arctic are natural sources of the climate relevant trace gas methane. The underlying biogeochemical processes are not yet well understood.
Gattinger, A. +3 more
core
This work reviewed the direct and indirect effects of fires on microbial communities and the resilience strategies microbes use to withstand high temperatures . ABSTRACT Fire, whether occurring on the surface or underground, significantly influences soil microbial dynamics by reshaping community composition, functional diversity and overall soil and ...
Ma. del Carmen Orozco‐Mosqueda +7 more
wiley +1 more source

