搜索结果: 1-11 共查到“tundra”相关记录11条 . 查询时间(0.065 秒)
Rising tundra temperatures lead to changes in microbial communities（图）
Rising tundra temperatures lead changes microbial communities
2019/10/23
Rising temperatures in the tundra of northern latitudes could affect microbial communities in ways likely to increase their production of the greenhouse gases methane and carbon dioxide, a new study o...
Study finds toxic mercury is accumulating in the Arctic tundra
toxic mercury accumulating the Arctic tundra
2017/7/24
Vast amounts of toxic mercury are accumulating in the Arctic tundra, threatening the health and well-being of people, wildlife and waterways, according to a UMass Lowell scientist investigating the so...
ALBEDO ASSESSMENT AND EVALUATION OVER ARCTIC SIBERIAN TUNDRA
Land surface albedo sensor intercomparison analysis.
2015/9/8
Land surface albedo is one of the key drivers of the Earth’s surface energy budget.
To study the feedback of land surface albedo changes – as induced by surface
changes (e.g., changing vegetation, s...
Realis mood, focus, and existential closure in Tundra Yukaghir
Notional mood Realis Irrealis Focus Information structure Event semantics Tundra Yukaghir
2015/5/5
The nature and the typological validity of the categories ‘realis’ and ‘irrealis’ has been a matter of intensive debate. In this paper we analyse the realis/irrealis dichotomy in Tundra Yukaghir (isol...
A reduced-order modeling approach to represent subgrid-scale hydrological dynamics for land-surface simulations: application in a polygonal tundra landscape
reduced-order modeling represent subgrid-scale hydrological dynamics
2014/12/19
Existing land surface models (LSMs) describe
physical and biological processes that occur over a wide
range of spatial and temporal scales. For example, biogeochemical and hydrological processes res...
Basic Rocks as a Source of Phyllosilicate in Soils of Tundra and Northern Taiga (Russia)
Basic Rocks Source Phyllosilicate Soils Tundra Northern Taiga
2012/3/14
Basic Rocks as a Source of Phyllosilicate in Soils of Tundra and Northern Taiga (Russia).
Relocation of Major Ions in Snow along the Tundra-Taiga Ecotone
Relocation of Major Ions Tundra-Taiga Ecotone
2009/10/26
The chemistry of seasonal snowcovers north of Inuvik, Northwest Territories,
Canada was stratified by biophysical landscape. In this region, deposition of
ions in winter occurs largely through the r...
Fluxes of Water and Energy from Three High Latitude Tundra Sites in Svalbard
Fluxes of Water Three High Latitude Tundra Sites Svalbard
2009/10/23
Measurements of the surface fluxes of radiation, heat and water vapour were
made at three tundra sites near N~-Alesund, Svalbard for the active seasons
(June to September) of 1995 and 1996. In 1995 ...
Snowmelt runoff from northern alpine tundra hillslopes: major processes and methods of simulation
subsurface runoff alpine tundra
2009/3/6
In northern alpine tundra, large slope gradients, late-lying snow drifts and shallow soils overlying impermeable substrates all contribute to large hillslope runoff volumes during the spring freshet. ...
The growing season greenhouse gas balance of a continental tundra site in the Indigirka lowlands,NE Siberia
season greenhouse gas balance continental tundra site Indigirka lowlands
2010/1/14
Carbon dioxide and methane fluxes were measured at a tundra site near Chokurdakh, in the lowlands of the Indigirka river in north-east Siberia. This site is one of the few stations on Russian tundra a...
The exchange of carbon dioxide between wet arctic tundra and the atmosphere at the Lena River Delta,Northern Siberia
exchange carbon dioxide wet arctic tundra atmosphere Lena River Delta
2010/1/14
The exchange fluxes of carbon dioxide between wet arctic polygonal tundra and the atmosphere were investigated by the micrometeorological eddy covariance method. The investigation site was situated in...