搜索结果: 61-75 共查到“理学 ecosystem”相关记录189条 . 查询时间(0.103 秒)
Against the tide: Recent diversity increase enhances resource use in a coastal ecosystem
Against the tide coastal ecosystem
2014/4/2
Biodiversity losses in marine, terrestrial, and freshwater ecosystems have raised concerns about the maintenance
of sustainable ecosystem functions and services (‘‘biodiversity crisis’’). A positive ...
中美生态学会联合创办Ecosystem Health and Sustainability国际期刊
中美生态学会 Ecosystem Health and Sustainability 国际期刊
2014/1/18
2013年2月, 经中国生态学学会(Ecological Society of China)和美国生态学会（Ecological Society of America）研究协商，共同出版Ecosystem Health and Sustainability（EHS）（ISSN：2332-8878）国际期刊。该刊是OA（开放获取）期刊，将于2015年正式在线出版，是中国生态学学会与美国生态学会携手打...
The roles of productivity and ecosystem size in determining food chain length in tropical terrestrial ecosystems
ecosystem size food chain length food web structure islands
2015/11/13
Many different drivers, including productivity, ecosystem size, and disturbance,
have been considered to explain natural variation in the length of food chains. Much remains
unknown about the role o...
The University of Queensland tree planting scheme to protect an endangered ecosystem
tree planting endangered ecosystem
2014/7/14
The University of Queensland has planted almost 2000 trees at the Gatton campus in a project that will help to protect a critically endangered ecosystem and offset UQ’s carbon footprint.
Terrestrial Ecosystem Carbon Fluxes Predicted from MODIS Satellite Data and Large-Scale Disturbance Modeling
Carbon Flux Deforestation MODIS Ecosystem Production
2013/3/8
The CASA (Carnegie-Ames-Stanford) ecosystem model based on satellite greenness observations has been used to estimate monthly carbon fluxes in terrestrial ecosystems from 2000 to 2009. The CASA model ...
Ecosystem model reveals why women are driven out of science
Ecosystem model driven out of science
2014/7/16
Understanding how a species battles to sustain itself in a challenging habitat is a cornerstone of ecological research.
3D geospatial modelling and visualization for marine environment: Study of the marine pelagic ecosystem of the south-eastern Beaufort Sea, Canadian Arctic
GIS Oceanography Visualization Spatial, Modelling Three-dimensional, Interpretation
2014/4/25
Geospatial modelling of the marine pelagic ecosystem is challenging due to its dynamic and volumetric nature. Consequently, conventional oceanographic spatial analysis of this environment is in a 2D e...
Emergence of diversity in a model ecosystem
Emergence of diversity model ecosystem Populations and Evolution
2012/4/28
The biological requirements for an ecosystem to develop and maintain species diversity are in general unknown. Here we consider a model ecosystem of sessile and mutually excluding organisms competing ...
Regional-scale effects of eutrophication on ecosystem structure and services of seagrass beds
Regional-scale effects eutrophication ecosystem structure services of seagrass beds
2014/4/3
Using large-scale field surveys across 12 estuaries in two provinces in Atlantic Canada, we analyzed changes in phytoplankton and benthic macroalgal communities as well as the canopy structure of eelg...
Variation in Ecosystem Services Value in a Typical Mountain Town, Liaohe Watershed, China
Ecosystem Service Value Land Use Change Nanfen District RS & GIS Value Coefficients
2011/12/21
This study investigated variation in ecosystem services value in response to land use change in Nanfen District of Benxi City, a typical mountain town in Liaohe watershed, China. We used two Landsat T...
ntarctic krill as a source of dissolved organic carbon to the Antarctic ecosystem
ntarctic kril dissolved organic carbon Antarctic ecosystem
2014/4/4
The role of krill as a source of dissolved organic matter in the Southern Ocean was tested through a series of
experiments performed around the Antarctic Peninsula. These experiments revealed high bu...
Plants cause ecosystem nutrient depletion via the interruption of bird-derived spatial subsidies
depletion via bird-derived spatial subsidies
2015/11/13
Plant introductions and subsequent community shifts are known
to affect nutrient cycling, but most such studies have focused on
nutrient enrichment effects. The nature of plant-driven nutrient
depl...
The effects of clouds and aerosols on net ecosystem CO2 exchange over semi-arid Loess Plateau of Northwest China
clouds and aerosols net ecosystem CO2 exchange semi-arid Loess Plateau of Northwest China
2010/9/14
The impacts of clouds and atmospheric aerosols on the terrestrial carbon cycle at semi-arid Loess Plateau in Northwest China are investigated, by using the observation data obtained at the SACOL (Semi...
Payment schemes for hydrological ecosystem services as a political instrument for the sustainable management of natural resources and poverty reduction – a case study from Belén, Nicaragua
Payment schemes hydrological ecosystem services a political instrument for the sustainable management of natural resources poverty reduction – a case study
2010/9/10
The importance of intact ecosystems for human-wellbeing as well as the dependence on functions and services they provide is undoubted. But still neither the costs of ecosystem degradation nor the bene...
The relative importance of heterotrophic bacteria to pelagic ecosystem dynamics varies with reservoir trophic state
heterotrophic bacteria pelagic ecosystem dynamics varies reservoir trophic state
2014/4/17
We tested the hypothesis that nutrient sequestration and carbon flow through heterotrophic bacteria is relatively highest in oligotrophic systems and decreases with trophic state in 17 reservoirs in T...