Sentences with phrase «of changes in vegetation»

«What happens on the surface of the earth (in terms of changes in vegetation) is a big factor in climate change,» she said.

Not exact matches

In years of relatively low flow, changes in weir pool levels in conjunction with environmental water use can confer ecological benefits between the river and floodplain, such as nutrient exchange and wetting of fringing vegetatioIn years of relatively low flow, changes in weir pool levels in conjunction with environmental water use can confer ecological benefits between the river and floodplain, such as nutrient exchange and wetting of fringing vegetatioin weir pool levels in conjunction with environmental water use can confer ecological benefits between the river and floodplain, such as nutrient exchange and wetting of fringing vegetatioin conjunction with environmental water use can confer ecological benefits between the river and floodplain, such as nutrient exchange and wetting of fringing vegetation.

long cost / benefit analysis, which not only include loss of arable land but rather shifting it further towards pools (in my country, unless there is an awful change in sea currents, one could actually expect longer vegetation season)

The maps show changes in vegetation, elevation, amount of rainfall and include scales to show distance.

With global climate models projecting further drying over the Amazon in the future, the potential loss of vegetation and the associated loss of carbon storage may speed up global climate change.

«It is of paramount importance to account for changes in Saharan vegetation and dust emissions when simulating past climate change.

In separate surveys, Ulrich, Orians, and others have found that people respond strongly to landscapes with open, grassy vegetation, scattered stands of branchy trees, water, changes in elevation, winding trails, and brightly lit clearings, preferably partly obscured by foliage in the foregrounIn separate surveys, Ulrich, Orians, and others have found that people respond strongly to landscapes with open, grassy vegetation, scattered stands of branchy trees, water, changes in elevation, winding trails, and brightly lit clearings, preferably partly obscured by foliage in the foregrounin elevation, winding trails, and brightly lit clearings, preferably partly obscured by foliage in the foregrounin the foreground.

The results suggest that recent changes in global vegetation have had impacts on local climates that should be considered in the design of local mitigation and adaptation plans.

Dinets, who has traveled extensively on both sides of the Bering Strait, notes that in the past 20 years, the vegetation of the region has changed dramatically.

In addition to ignoring the long - term outlook, he says, many skeptics also fail to mention the potentially most harmful outcome of rising atmospheric CO2 on vegetation: climate change itself.

Vegetation change underway in boreal forests as a result of climate change creates a feedback loop that prompts more warming, scientists say

«We found that vegetation change may have a greater impact on the amount of stream flow in the Sierra than the direct effects of climate warming,» said lead author Ryan Bart, a postdoctoral researcher at UCSB's Bren School of Environmental Science & Management.

«The results underscore the importance of accounting for changes in vegetation communities to accurately characterize future stream flow for the Sierra Nevada.»

So if you think of going in [a] warming direction of 2 degrees C compared to a cooling direction of 5 degrees C, one can say that we might be changing the Earth, you know, like 40 percent of the kind of change that went on between the Ice Age; and now are going back in time and so a 2 - degree change, which is about 4 degrees F on a global average, is going to be very significant in terms of change in the distribution of vegetation, change in the kind of climate zones in certain areas, wind patterns can change, so where rainfall happens is going to shift.

Pixel by pixel analysis of vegetation changes from week to week to give an early warning for the outbreaks of drought, hazardous fire conditions, or even when malaria may break out in Sub-Saharan Africa.

The Final Blow Graham and several of the other team members begin by ruling out possible causes, such as a change in vegetation to something less mammoth - friendly.

«Nobody really knows what the increases in CO2 are going to entail in terms of future changes in vegetation types,» co-author Mark Brenner of the University of Florida says.

To examine historical changes in growth and mortality rates of the vegetation there, the scientists looked at forest biomass, the cumulative result of past growth.

«Our results highlight the importance of the interactive effects of vegetation type, temperature and moisture in determining of the response of soil decomposition to climate change,» says lead author Julia Bradley - Cook, who conducted the study as part of her doctorate in Ecology and Evolutionary Biology at Dartmouth and who is now a Congressional Science Fellow.

Besides the increased emissions of N2O, the authors observed significant increases in the seasonal release of CO2 and CH4 as a result of only a mild temperature increase, and dug deeply into the reason behind the observed changes by detailed soil and vegetation measurements.

At least half of the slowdown is thought to be due to changes in land use, with more vegetation and possibly more buildings making the terrain rougher (Nature Geoscience, vol 3, p 756).

Dr Sue Ward, the Senior Research Associate for the project at Lancaster University, said: «Peat is one of the earth's most important stores of carbon, but one of the most vulnerable to changes in climate and changes in vegetation caused by both climate and land management.

Therefore mathematical modeling has the potential to be an extremely valuable tool, enabling prediction of how pattern vegetation will respond to changes in external conditions.»

«Most climate models that incorporate vegetation are built on short - term observations, for example of photosynthesis, but they are used to predict long - term events,» said Bond - Lamberty, who works at the Joint Global Change Research Institute, a collaboration between PNNL and the University of Maryland in College Park, Md. «We need to understand forests in the long term, but forests change slowly and researchers don't live that long.&Change Research Institute, a collaboration between PNNL and the University of Maryland in College Park, Md. «We need to understand forests in the long term, but forests change slowly and researchers don't live that long.&change slowly and researchers don't live that long.»

Complex as they may be, the activities and effects of consumers should be incorporated into global vegetation models in order to accurately predict the likely consequences of global change.

An example would be the indirect effects of sea stars on vegetation in the rocky intertidal zone caused by changes in mussel density via predation.

«You are probably getting a vegetation change due to that first fire that's going to cause more high - severity fires in the future and potentially the emergence of non-forest that could last for a long time.»

In this study, researchers examined vegetation change as a function of wildfire disturbance and climate change over a 100 - year period.

Every layer suggested a change in vegetation as well as moisture, the kinds of other animals that were around, and the survival challenges faced by our ancient predecessors.

In this case, the researchers combined records of ancient lake levels, location and extent of glaciation, variations in the composition of stalagmites in caves, and evidence for changes in vegetation and subsurface soil deposits associated with water table deptIn this case, the researchers combined records of ancient lake levels, location and extent of glaciation, variations in the composition of stalagmites in caves, and evidence for changes in vegetation and subsurface soil deposits associated with water table deptin the composition of stalagmites in caves, and evidence for changes in vegetation and subsurface soil deposits associated with water table deptin caves, and evidence for changes in vegetation and subsurface soil deposits associated with water table deptin vegetation and subsurface soil deposits associated with water table depth.

Instruments on the platforms will monitor changes in the concentrations of gases such carbon dioxide, which is mainly produced when vegetation is burnt during the dry season.

To explore how well the timing of the changes matched up, the researcher focused on a carbon isotope called 13C, which is retained in soil in the same proportions as in the vegetation the soil once contained.

Given the inverse relationship observed between their values, it has been possible to determine the additional area of vegetation needed (in this case of green roofs) necessary to reduce the temperature by the same amount as it is predicted to rise in different climate change models for Seville.

This heat map shows the areas of the United States where the soil microbial biomass is susceptible to changes in vegetation cover.

In the temperate zones, vegetation follows the change of the seasons.

Greening already under way Isla Myers - Smith, a lecturer at the University of Edinburgh who did not participate in the research, said the study is a «major advance» because it is the first to link such a broad range of vegetation changes with several climate feedbacks in the Arctic.

«I initially was interested simply in determining how closely timed the calving season was to the onset of vegetation green - up,» Post explained, «without a thought as to how this relationship might be affected by climate change.»

The findings, published in the journal Global Change Biology, are based on spatial and statistical analyses of historical climate data, satellite data on current vegetation, and projections of potential vegetation under climate cChange Biology, are based on spatial and statistical analyses of historical climate data, satellite data on current vegetation, and projections of potential vegetation under climate changechange.

A new paper published in Frontiers in Earth Science by archeologist Dr. David Wright, from Seoul National University, challenges the conclusions of most studies done to date that point to changes in the Earth's orbit or natural changes in vegetation as the major driving forces.

«The Illinois State Museum is deeply respected in the scientific community for the expertise of its curators and for its irreplaceable collection of archaeological, cultural, and paleontological artifacts,» says paleoecologist Jack Williams of the University of Wisconsin, Madison, who has used the Neotoma database to explore vegetation change over the past 20,000 years on a continental and global scale.

Weather conditions strongly affect the litter production by vegetation and the decomposition of organic matter, in particular, and thus soil carbon stock changes.

«Our finding that vegetation plays a key role future in terrestrial hydrologic response and water stress is of utmost importance to properly predict future dryness and water resources,» says Gentine, whose research focuses on the relationship between hydrology and atmospheric science, land / atmosphere interaction, and its impact on climate change.

This technique lays the foundation for much improved parameterizations of climate change and global vegetation models, which will tell what the future holds in store.

There is much work still to do to fill in the gaps, but Wright believes that a wealth of information lies hidden beneath the surface: «There were lakes everywhere in the Sahara at this time, and they will have the records of the changing vegetation.

Agricultural expansion is quickly chewing up native vegetation in the vast wooded savannas of Brazil's Cerrado biome, and a new study shows that those changes in land use are altering the region's water cycle.

The scientists were thus able to reconstruct changes in the vegetation cover of the Atlantic seaboard and in the temperatures of the Atlantic Ocean.

«It's clear to me this expansion of hippos is really related to this change in vegetation.»

Previous research used satellite - based measurements of vegetation greenness to investigate changes in the Amazon rainforest, notably the effects of severe short - term droughts in 2005 and 2010.

The topography of East Africa completely changed: from a homogeneous flat region covered in moist forest, to a mountainous landscape with plateaus and deep rift valleys, where vegetation varied from cloud forest to desert scrub.

It is widely known that the terrestrial biosphere (the collective term for all the world's land vegetation, soil, etc.) is an important factor in mitigating climate change, as it absorbs around 20 % of all fossil fuel CO2 emissions.