Sentences with phrase «with changes in vegetation»

Plant associations in Belize are usually designated by the term «ridge» which has nothing to do with elevation, but rather with changes in vegetation.

Not exact matches

As ancient man surveyed his world, he found himself surrounded on all sides with movement and change, not only in fellow - humans, animals and birds, but in running water, scudding clouds, heavenly bodies traveling across the sky, rising dust - storms, the occasionally quaking earth and the vegetation which sprang up, flowered, fruited and died.

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.

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.

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.

Not everything from St. Paul Island is muddy: The team collected vegetation to compare it with ancient pollen and other clues to the environment stored in the sediment cores to learn how the island has changed over time

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).

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.

Collectively, these data show general increasing trends in both plant growth and evaporation with recent climate change mainly driven by vegetation greening and rising atmosphere moisture deficits.

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.

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.

The silicate + CO2 - > different silicate + carbonate chemical weathering rate tends to increase with temperature globally, and so is a negative feedback (but is too slow to damp out short term changes)-- but chemical weathering is also affected by vegetation, land area, and terrain (and minerology, though I'm not sure how much that varies among entire mountain ranges or climate zones)-- ie mountanous regions which are in the vicinity of a warm rainy climate are ideal for enhancing chemical weathering (see Appalachians in the Paleozoic, more recently the Himalayas).

Desertification also contributes to climate change, with land degradation and related loss of vegetation resulting in increased emissions and reduced carbon sink.

For example, with changes in temperature and precipitation, ecosystems within Montana may shift to drier conditions resulting in changes to vegetation types.

-- 7) Forest models for Montana that account for changes in both climate and resulting vegetation distribution and patterns; 8) Models that account for interactions and feedbacks in climate - related impacts to forests (e.g., changes in mortality from both direct increases in warming and increased fire risk as a result of warming); 9) Systems thinking and modeling regarding climate effects on understory vegetation and interactions with forest trees; 10) Discussion of climate effects on urban forests and impacts to cityscapes and livability; 11) Monitoring and time - series data to inform adaptive management efforts (i.e., to determine outcome of a management action and, based on that outcome, chart future course of action); 12) Detailed decision support systems to provide guidance for managing for adaptation.

That is clearly the Milankovitch cycles that initiate the process — and CO2 and water vapor (along with changes in albedo due to snow and vegetation) are both feedbacks.

When a group of time hunters «bring back» something with them in the present from the past, they change the course of evolution and come back to a world ruled by odd creatures and deadly vegetation.

However the changes in the vegetation and landscape as you climb through different climatic zones will keep you involved with the hike and focussed on discovering more as you climb.

Passing through Greymouth we keep following the coast to Punakaiki where you'll notice a change in the landscape and vegetation with huge limestone cliffs appearing and Nikau Palm trees become abundant.

Mt. MBeliling: a 1.239 meters high peak in west Flores, offering a cool refuge with rainforest and an ever - changing array of vegetation (1 hour drive from Labuan Bajo and 2 day trekking)

As we descend we'll feel the climate changing, becoming warmer and more alive, with more variety in vegetation, and we'll be accompanied by hummingbirds along the way.

For example, Dafflon et al. [2017] demonstrated in a polygonal tundra how soil electrical resistivity tomography and vegetation activity cameras can be merged with in situ measurements in a way to corroborate the role of active layer thickness and polygon geometry on spatial control on productivity, and demonstrate how changes in solute concentration and unfrozen water content in winter contributes to acceleration of permafrost thaw.

• Representation of climate processes in models, especially feedbacks associated with clouds, oceans, sea ice and vegetation, in order to improve projections of rates and regional patterns of climate change.

E.g., human - caused albedo variations from desertification, and to some extent tropical deforestation, were connected with past global climate changes by Sagan et al. (1979); a pioneering model confirming «the long - held idea that the surface vegetation... is an important factor in the Earth's climate» was Shukla and Mintz (1982); Amazon Basin: Salati and Vose (1984); more recently, see Kutzbach et al. (1996).

(08/13/2012) Clearing forests and other vegetation with fire in Southeast Asia can kill, according to a new study in Nature Climate Change.

c) Michael - Shawn Fletcher, Patricio Iván Moreno: Vegetation, climate and fire regime changes in the Andean region of southern Chile (38 ° S) covaried with centennial - scale climate anomalies in the tropical Pacific over the last 1500 years Quaternary Science Reviews, (16 July 2012) Volume 4, Pages 46 — 56.

FOR IMMEDIATE RELEASE An extensive new study by climate impact researchers warns that humans will struggle to cope with drastic and rapid changes to the planet unless greenhouse gas emissions rates are cut now London, 8 October − Allowing the Earth's temperature to rise by more than 2ºC will see dramatic changes in vegetation across the planet and expose a billion more people to severe water scarcity, according to new research.

while in the context of the ongoing climate debate we continue — albeit with some embarrassment — to employ the scientifically meaningless phrase «climate change», we recognise that, in principle, a planetary warming to fend off otherwise imminent glacial inception, together with CO2 greening (the latter offsetting loss of vegetation footprint, the only real environmental concern) is having broad positive impacts on society, including the global economy, natural resources, and human health.

The role of vegetation in climate change is massive — and the above evapotranspiration is a major player with some reports of minus 0.6 C per year?

More exact for the partitioning between oceans and vegetation are found in the oxygen balance, but with large margins of error, as oxygen change measurements (a few ppmv in 200,000 ppmv) are extremely difficult, at the edge of the accuracy of the methods used.

NASA also picked up substantial vegetation change in Botswana's Central Kalahari Reserve and South Africa's Kruger National Park, which could be associated with savanna wildfires.

Houghton's method of reconstructing Land - Use Based Net Flux of Carbon appears arbitrary and susceptible to bias; i.e. «Rates of land - use change, including clearing for agriculture and harvest of wood, were reconstructed from statistical and historic documents for 9 world regions and used, along with the per ha [hectare] changes in vegetation and soil that result from land management, to calculate the annual flux of carbon between land and atmosphere.»

Broad - scale changes in vegetation in general, and tree loss in particular, have pronounced effects on climate processes through biogeophysical mechanisms such as albedo, evapotranspiration (ET), and carbon dioxide exchange with the atmosphere [11].

Placing these ecoclimate consequences in a regional context also makes it possible to more directly compare local impacts with field measurements of vegetation change.

WR: And when put in an environment with lots of water, water vapour, vegetation, fauna, clouds, changing weather systems etc. and all theire interactions..

Land comprises only about 30 % of the Earth's surface, but it can have the largest effects on the reflection of global solar radiation in conjunction with changes in ice and snow cover, and the shading of the latter by vegetation.

These changes are driven by changing vegetation type mixtures, with grasses and smaller shrubs in JeDi decreasing boreal residence times, and greater proportions of trees increasing residence times in the southeastern United States and China.

Using additional simulations with each GVM in which the CO2 experienced by the vegetation was held constant, these results were further analyzed by fitting to each GVM globally, a simple two - parameter model for the relationship between NPP and CO2 [i.e.,, where is the change in CO2], combined with linear models for the relationships between NPP and temperature (i.e., MLT) and residence time and temperature (i.e., MLT).

With respect to why there was a significant increase in tree density over the past several decades, Dolanc offers that the changes in the density and composition of lower - elevation forests are consistent with fire suppression; but that the density increases in high - elevation vegetation types (subalpine forests generally don't burn) are «more likely to be caused by changing climate.&raWith respect to why there was a significant increase in tree density over the past several decades, Dolanc offers that the changes in the density and composition of lower - elevation forests are consistent with fire suppression; but that the density increases in high - elevation vegetation types (subalpine forests generally don't burn) are «more likely to be caused by changing climate.&rawith fire suppression; but that the density increases in high - elevation vegetation types (subalpine forests generally don't burn) are «more likely to be caused by changing climate.»

To facilitate comparison across simulations using all GCMs and RCPs, we express global vegetation change with respect to change in global mean land surface temperature (ΔMLT).

It was an excellent and thorough paper on the changes in Estonian swamp vegetation in the last 30 years, with many many beautiful graphs, but for me there was just one question — namely there, in the paper, there was absolutely no evidence or even indication that these these changes were the the result of global warming!

Changes in vegetation carbon residence times can cause major shifts in the distribution of carbon between pools, overall fluxes, and the time constants of terrestrial carbon transitions, with consequences for the land carbon balance and the associated state of ecosystems.

Future global vegetation carbon change calculated by seven global vegetation models using climate outputs and associated increasing CO2 from five GCMs run with four RCPs, expressed as the change from the 1971 — 1999 mean relative to change in global mean land temperature.

Social issues that commonly occur when natural vegetation is replaced with commercially managed crops may also arise as a result of changes in property and land - use rights.

In all of these simple models, we assume the atmosphere to have a volume as fixed as a bathtub, we assume that the atmosphere / ocean system is a closed system, we assume that the incoming radiation from the Sun is constant, we assume no turbulence, we assume no viscosity, we assume radiative equilibrium with no feedback lag, we take no account of water vapor flux assuming it to be constant, no change in albedo from changes in land use, glacier lengthening and shortening, no volcanic eruptions, no feedbacks from vegetatioIn all of these simple models, we assume the atmosphere to have a volume as fixed as a bathtub, we assume that the atmosphere / ocean system is a closed system, we assume that the incoming radiation from the Sun is constant, we assume no turbulence, we assume no viscosity, we assume radiative equilibrium with no feedback lag, we take no account of water vapor flux assuming it to be constant, no change in albedo from changes in land use, glacier lengthening and shortening, no volcanic eruptions, no feedbacks from vegetatioin albedo from changes in land use, glacier lengthening and shortening, no volcanic eruptions, no feedbacks from vegetatioin land use, glacier lengthening and shortening, no volcanic eruptions, no feedbacks from vegetation.

But there were countless ways that the spring floods and even the vegetation recorded in the layers could have changed in ways that had nothing to do with climate — a shift of stream drainages, a forest fire, the arrival of a tribe of farmers who cleared the land.

Although biogenic NMVOC emissions increase with increasing temperature, all three studies concur that climate - driven changes in vegetation types unfavourable to isoprene emissions (notably the recession of tropical forests) would partly compensate for the effect of warming in terms of ozone generation.

Seasonal exchanges are huge: about 20 % of all CO2 in the atmosphere is exchanged between atmosphere and other reservoirs over the seasons, but as the exchanges with oceans and vegetation are countercurrent with temperature (vegetation in the NH dominates), the net result is only some 2 % change in the atmosphere over the seasons which is visible in the Mauna Loa curve.

Albedo change due to LGM — Holocene vegetation change, much of which is inherent with ice sheet area change, and albedo change due to coastline movement are lumped together with ice sheet area change in calculating the surface albedo climate forcing.

Rainfall change and variability is very likely to affect vegetation in tropical grassland and savanna systems with, for example, a reduction in cover and productivity simulated along an aridity gradient in southern African savanna in response to the observed drying trend of about 8 mm / yr since 1970 (Woodward and Lomas, 2004a).