Results 31 to 40 of about 4,057 (184)
Frontiers in Environmental Science, 2021 Peatland is a key component of terrestrial ecosystems in permafrost regions and have important effects on climate warming. Soil enzymes are involved in biogeochemical cycle of soil carbon (C), nitrogen (N) and phosphorus (P), which can be used as early ...
Chao Liu +7 more
doaj +1 more source
Degradation of permafrost carbon in the Kolyma River [PDF]
, 2020 <p>Soil temperatures in permafrost (i.e. perennially frozen ground) are rising globally. The increasing temperatures accelerate permafrost thaw and release of organic carbon, that has been locked in permafrost soils since the last glacial period, to the contemporary carbon cycle.
Kirsi Keskitalo +10 more
openaire +2 more sources
Deep Underground Science and Engineering, EarlyView.This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu +8 more
wiley +1 more source
Climate warming over the past half century has led to thermal degradation of permafrost on the Qinghai–Tibet Plateau [PDF]
The Cryosphere, 2018 Air temperature increases thermally degrade permafrost, which has widespread impacts on engineering design, resource development, and environmental protection in cold regions.
Y. Ran +6 more
doaj +1 more source
Advances in Climate Change Research, 2021 The embankment of the Qinghai–Tibet Railway (QTR) has been experiencing severe problems due to permafrost degradation, especially in warm and ice-rich permafrost regions.
Qi-Hang Mei +7 more
doaj +1 more source
Modeling Long‐Term Permafrost Degradation [PDF]
Journal of Geophysical Research: Earth Surface, 2018 Permafrost, as an important part of the Cryosphere, has been strongly affected by climate warming, and a wide spread of permafrost responses to the warming is currently observed. In particular, at some locations rather slow rates of permafrost degradations are noticed.
D. J. Nicolsky, V. E. Romanovsky
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Energy Science &Engineering, EarlyView.The novelty of the current study is that the unsteady MHD Cross nanofluid model is, for the first time, coupled with the melting heat transfer at the stagnation point over a horizontally extended cylinder in a Darcy–Forchheimer porous medium. This work connects complex rheological behaviors and phase‐change phenomena in a unique way, with the only ...
Fahad Maqbul Alamrani +6 more
wiley +1 more source
Advances in Climate Change ResearchPermafrost degradation and desertification have been identified as two major land surface processes occurring on the Qinghai‒Xizang Plateau. However, the effect of desertification on permafrost degradation remains poorly understood.
Lu-Yang Wang +8 more
doaj +1 more source
Grassland Research, EarlyView.The importance of green water in water resource management. Conceptual classification of terrestrial water components highlighting the central role of green water in land‐atmosphere interactions. This schematic distinguishes green water (soil moisture available for plant uptake and evapotranspiration) from blue water (surface water, groundwater, and ...
Khadija Javed +2 more
wiley +1 more source
Perspectives of High‐Resolution Mass Spectrometry in Soil Science
Journal of Plant Nutrition and Soil Science, EarlyView.ABSTRACT Soil biogeochemical research requires specific, sensitive, and accurate methods to identify and quantify organic molecules in order to trace biochemical processes and assess element cycling in complex, heterogenous systems. High‐resolution mass spectrometry (HRMS) has evolved into a transformative tool for unraveling the complex chemical ...
Bruno Glaser +11 more
wiley +1 more source