Results 41 to 50 of about 1,136,547 (231)

The role of changing temperature in microbial metabolic processes during permafrost thaw.

open access: yesPLoS ONE, 2020
Approximately one fourth of the Earth's Northern Hemisphere is underlain by permafrost, earth materials (soil, organic matter, or bedrock), that has been continuously frozen for at least two consecutive years.
Komi S Messan   +5 more
doaj   +1 more source

Global patterns of treeline predictability and the gap between the forest and the treeline

open access: yesEcography, EarlyView.
The alpine treeline is the highest elevation at which trees can grow, which is assumed to be controlled by temperature and globally predictable. However, many upper forest limits (UFLs) do not reach this elevation, due natural factors and human disturbance.
Erickson G. Urquiaga‐Flores   +2 more
wiley   +1 more source

Permafrost Regions In Transition: Introduction

open access: yesGeography, Environment, Sustainability, 2021
Russian permafrost regions are unparalleled in extent, history of development, population presence, and the scale of economic activities. This special issue, «Permafrost Regions in Transition», provides a timely opportunity to (a) examine major issues ...
Dmitry A. Streletskiy   +3 more
doaj   +1 more source

Green water, wetlands, and atmospheric moisture recycling ‐ An emerging new paradigm for grassland science

open access: yesGrassland 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

Influence of permafrost characteristics on vegetation change in Yukon and Northwest Territories, Canada [PDF]

open access: yes, 2021
Permafrost thaw is a significant contributor to landscape change and ecosystem disruption in northern systems. While previous studies have examined the impact of permafrost on vegetation change, few have investigated the connection of permafrost ...
Vogt, Nina S
core   +1 more source

Frozen Ground - The News Bulletin of the International Permafrost Association, No.28 [PDF]

open access: yes, 2001
Frozen Ground - The News Bulletin of the International Permafrost Association, No ...
International Permafrost Association, IPA
core   +1 more source

Landscape fragmentation associated with the Qingzang Highway and its influencing factors—A comparison study on road sections and buffers

open access: yesGeography and Sustainability, 2021
Many studies have examined the effect of roads on landscape fragmentation. Yet they rarely considered local characteristics of the road and road buffer widths.
Yi Miao   +3 more
doaj   +1 more source

Microbial nutrient limitation in Arctic lakes in a permafrost landscape of southwest Greenland [PDF]

open access: yesBiogeosciences, 2015
Permafrost is degrading across regions of the Arctic, which can lead to increases in nutrient concentrations in surface freshwaters. The oligotrophic state of many Arctic lakes suggests that enhanced nutrient inputs may have important effects on these systems, but little is known about microbial nutrient limitation patterns in ...
B. Burpee   +3 more
openaire   +3 more sources

Remote Sensing for Irrigation Water Management—The State of the Art and Prospects for Near‐Future Operations

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT A recent UN report describes many regions as facing ‘water bankruptcy,’ a condition in which available water resources can no longer meet existing demands. In practice, this means irrigation will likely bear the greatest burden of future water‐use reductions, a complicated and fraught decision to make given its critical role in food security ...
Wim G. M. Bastiaanssen   +30 more
wiley   +1 more source

Frozen Ground - The News Bulletin of the International Permafrost Association, No.9 [PDF]

open access: yes, 1991
Frozen Ground - The News Bulletin of the International Permafrost Association, No.
International Permafrost Association, IPA
core  

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