Results 61 to 70 of about 28,062 (200)

A Strategy for Adapting the Hydraulic System of Woody Plants to Various Tiers of the Floodplain Forest of the Enmyvaam River (Chukotka)

Лесной журнал
The article examines the features of the anatomical structure of the hydraulic system of 17 species from 13 genera of 6 families of woody flowering plants, which belong to different tiers of the floodplain forest growing along the Enmyvaam River ...
Evgenia S. Chavchavadze, Roman V. Shchekalev, Alexander A. Grabovskiy, Veronika O. Romanova   +3 more
doaj   +1 more source

Dryas aeolian landforms in Arctic deflationary tundra, central Spitsbergen

Polish Polar Research, 2020
Aeolian activity is common on ice free areas in regions with permafrost occurrence. Sparse high-Arctic tundra vegetation, modifying surface air flow and sediments transport, influences the generation of individual landforms and their assemblages ...
Borysiak Janina, Pleskot Krzysztof, Rachlewicz Grzegorz   +2 more
doaj   +1 more source

Spatio-temporal influence of tundra snow properties on Ku-band (17.2 GHz) backscatter [PDF]

, 2015
During the 2010/11 boreal winter, a distributed set of backscatter measurements was collected using a ground-based Ku-band (17.2 GHz) scatterometer system at 26 open tundra sites.
King, Joshua, Kasurak, Andrew, Watts, Tom, Kelly, Richard, Dugauy, Claude, Rutter, Nick, Gunn, Grant, Derksen, Chris   +7 more
core   +1 more source

Alder Distribution and Expansion Across a Tundra Hillslope: Implications for Local N Cycling

Frontiers in Plant Science, 2019
Increases in the availability of nitrogen (N) may have consequences for plant growth and nutrient cycling in N-limited tundra plant communities. We investigated the impact alder (Alnus viridis spp. fruticosa), an N-fixing deciduous shrub, has on tundra N
Verity G. Salmon, Amy L. Breen, Jitendra Kumar, Mark J. Lara, Mark J. Lara, Peter E. Thornton, Stan D. Wullschleger, Colleen M. Iversen   +7 more
doaj   +1 more source

Characterizing ICESat‐2 Snow Depths Over the Boreal Forests and Tundra of Alaska in Support of the SnowEx 2023 Campaign

Water Resources Research
Recent studies show that the Ice, Clouds, and Land Elevation Satellite‐2 (ICESat‐2) can achieve decimeter‐level accuracy over forested and mountainous sites in the western United States, as well as over the glaciers of Alaska.
Zachary Fair, Carrie Vuyovich, Thomas Neumann, Chrisopher F. Larsen, Svetlana Stuefer, Megan Mason, Lora May   +6 more
doaj   +1 more source

Deeper snow increases the net soil organic carbon accrual rate in moist acidic tussock tundra: 210Pb evidence from Arctic Alaska

Arctic, Antarctic, and Alpine Research, 2020
The net change in the carbon inventory of arctic tundra remains uncertain as global warming leads to shifts in arctic water and carbon cycles. To better understand the response of arctic tundra carbon to changes in winter precipitation amount, we ...
Karyn C. DeFranco, Michael P. Ricketts, Elena Blanc-Betes, Jeffrey M. Welker, Miquel A. Gonzalez-Meler, Neil C. Sturchio   +5 more
doaj   +1 more source

An overview of ABoVE airborne campaign data acquisitions and science opportunities

Environmental Research Letters, 2019
The 2017 Arctic Boreal Vulnerability Experiment Airborne Campaign (AAC) was one of the largest, most complex airborne science experiments conducted by NASA’s Earth Science Division.
C E Miller, P C Griffith, S J Goetz, E E Hoy, N Pinto, I B McCubbin, A K Thorpe, M Hofton, D Hodkinson, C Hansen, J Woods, E Larson, E S Kasischke, H A Margolis   +13 more
doaj   +1 more source

Arctic greening and bird nest predation risk across tundra ecotones [PDF]

, 2019
Alarming global-scale declines of bird numbers are occurring under the changing climate, and species belonging to alpine and Arctic tundra are particularly affected.
Marita A. Strømeng, Garmo, Mari, Strømeng, Marita Anti, Jepsen, Jane Uhd, Henden, John-André, Anders V. Thingnes, Mari J. Garmo, Thingnes, Anders Voss, John-Andre Henden, Jane U. Jepsen, Ims, Rolf Anker, Rolf A. Ims   +11 more
core   +1 more source

Generalization of heterogeneous alpine vegetation in air photo-based image classification, Latnjajaure catchment, northern Sweden

Pirineos: Revista de Ecología de Montaña, 2006
Hemos llevado a cabo la cartografía de la vegetación alpina a escala media (nivel de cuenca experimental) mediante interpretación remota. Esta metodología plantea dificultades debido a la distribución en mosaico de la vegetación y a la heterogeneidad del
K. E. M. Lindblad, R. Nyberg, U. Molau
doaj   +1 more source

Heat- and CO2 flux data from a tundra vegetation zone in the low-Arctic Tasiapik valley in the forest-tundra ecotone in Northern Quebec

The data collection contains meteorological, soil and snow measurements from two nearby sites in the forest-tundra ecotone in the Tasiapik valley near Umiujaq in northern Quebec, Canada.
Domine, Florent, Sarrazin, Denis, Lackner, Georg, Belke-Brea, Maria, Nadeau, Daniel   +4 more
core   +1 more source