Sentences with phrase «of vegetation density»

This study is focused on three specific aspects: to assess the impact of vegetation density on energy efficiency of a roof located at a Mediterranean coastal climate; develop a simplified numeral model that can estimate thermal resistance values equivalent to plants and substrates, and finally, to verify the numerical model by using experimental data.

Not exact matches

By changing both the height and density of this simulated vegetation, the researchers could present different light - competition scenarios to the plants.

That said, we also found that dense vegetation was the most important predictor of nest survival, so harvest practices that reduce density of young trees, such as pre-commercial thinning, could potentially be detrimental,» says Buckley Luepold.

Enduring swarms of biting black flies, numerous flat tires, and even a night spent stranded in the woods with a broken ATV, they also collected a variety of data on habitats where the birds nested, including vegetation density, spruce and fir cone production, and red squirrel abundance.

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.

In a comprehensive field experiment, the scientists sowed more than 90 different native and exotic plant species into 16 grasslands with different vegetation densities in the Canton of Bern.

These so - called urban heat islands result from various factors, such as population density, surface sealing, thermal radiation of buildings, industry, and transport as well as lacking vegetation.

Most studies consider the green roofs as a single unit made of plants and substrates studied as if they had the maximum density of vegetation without considering that, unless it is a pre-vegetated green roof system, vegetation needs time to grow after being installed and the roof might not have vegetation for a certain period of time.

Researchers have developed a numerical model that was able to verify the effects on passive cooling of buildings caused by the density variation of vegetation of green roofs.

Besides, researchers found that a roof with a high density vegetation works as a passive cooling system, in fact, the energy released from the building through the roof during the summer is a 9 % of the incoming energy during the same period.

Its preferred habitat is complex layer vegetation with a high density of woody, perennially fruiting shrubs.

A study in Science says that tropical forests are now net sources of CO2: Here we use 12 years (2003 — 2014) of MODIS pantropical satellite data to quantify net annual changes in the aboveground carbon density of tropical woody live vegetation, providing direct, measurement - based evidence that the world's tropical forests are a net carbon source of 425.2 ± 92.0 Tg C yr — 1.

In order to «fully develop» the Mountain West's oil shale resources, a 16,000 square mile area would have to be stripped of all vegetation, flattened and drilled on a density that would make even Texans blush.

[S] cientists know that the density of buildings, the absorption of light by those buildings, and the relative lack of vegetation in cities are major contributors to the urban heat island effect.

But researchers report in Science journal that, using satellite imagery and field measurements, they analysed the carbon density of living, woody vegetation across tropical Africa, America and Asia for the decade between 2003 and 2014.

Estimates of surface snow water equivalent (SWE) in alpine regions with seasonal melts are particularly difficult in areas of high vegetation density, topographic relief and snow accumulations.

Here we use 12 years (2003 — 2014) of MODIS pantropical satellite data to quantify net annual changes in the aboveground carbon density of tropical woody live vegetation, providing direct, measurement - based evidence that the world's tropical forests are a net carbon source of 425.2 ± 92.0 Tg C yr — 1.

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.»

They also took core samples at each site to measure the depth of the burn and analyze the physical and chemical makeup of the peat fueling the fire, as well as vegetation type, moisture content, and bulk density of the peat.

Estimating the carbon stocks in terrestrial ecosystems and accounting for changes in these stocks requires adequate information on land cover, carbon density in vegetation and soils, and the fate of carbon (burning, removals, decomposition).

In the fire scheme of CLM4, wildfire occurrence in each grid box is parameterized in terms of fuel density obtained from the vegetation carbon, hydrological conditions, and temperature (Thonicke et al. 2001; Kloster et al. 2010).