Sentences with phrase «largest vegetation carbon»

Tropical forests are especially important because, even though they cover only 7 percent of the Earth's surface, they contain the largest vegetation carbon stocks, and are also important carbon sinks.

Not exact matches

The simulations suggested that the indirect effects of increased CO2 on net primary productivity (how much carbon dioxide vegetation takes in during photosynthesis minus how much carbon dioxide the plants release during respiration) are large and variable, ranging from less than 10 per cent to more than 100 per cent of the size of direct effects.

Already projects are being designed to store carbon over decades in newly planted native vegetation, to restore connectivity and biodiversity in large - scale protected areas, and to train workers in restoring and maintaining wetlands and removing invasive species.

If damaged, they would stop capturing carbon dioxide and a large amount of it could be released into the atmosphere by decomposing vegetation

So even though the natural processes, the vegetation, the bacteria, the soil are enormous fluxors of carbon, in fact there are larger fluxors of carbon than our fossil fuel release, but we can see that they would have been in balance for the 10,000 years going back in time.

The U.N. Convention to Combat Desertification estimates that soil, as a sink for carbon dioxide, provides a larger reservoir than either vegetation or the atmosphere, calling its sequestration capabilities «unparalleled.»

The unnerving new estimate puts permafrost up there with soils (1,500 gigatons) and vegetation (650 gigatons), Earth's second and third largest repositories of carbon after the oceans.

She has already found a large increase in soil carbon two years after a single application of compost, probably due to enhanced vegetation growth.

First, there must be a large source of carbon, such as vegetation we have in abundance here on Earth.

Considering the carbon - cycle feedback, some models (e.g. Cox et al.) estimate large positive vegetation feedback (increased soil respiration, lower photosynthesis due to increased vegetation stress, increased fire frequency...) and some of the most extreme scenarios predict the CO2 concentration to be up to 980 ppm.

Science (e.g. Lal 2016) suggests that large amounts of carbon can be stored in soils and vegetation by restoring soil organics in agricultural land and environments.

However, a large portion of the mitigation potential in the AFOLU sector is carbon sequestration in soils and vegetation.

But if vegetation wilts, and soils turn to dust over large areas of already parched land, then the carbon dioxide levels in the atmosphere will increase even more.

Agreement nevertheless emerges on increases in future global vegetation carbon, with large regional increases across much of the boreal forest, western Amazonia, central Africa, western China, and southeastern Asia.

As a result, the new model found that the increase in carbon uptake by more vegetation will be overshadowed by a much larger amount of carbon released into the atmosphere.

Land inventory studies tend to measure the carbon stocks in vegetation and soils over larger areas and / or longer time periods.

Fourth, the carbon dioxide in the atmosphere is strongly coupled with other carbon reservoirs in the biosphere, vegetation and top - soil, which are as large or larger.

Impacts of large - scale and persistent changes in the MOC are likely to include changes to marine ecosystem productivity, fisheries, ocean carbon dioxide uptake, oceanic oxygen concentrations and terrestrial vegetation [Working Group I Fourth Assessment 10.3, 10.7; Working Group II Fourth Assessment 12.6, 19.3].

The repeated fires modify ecosystem structure, penetrate ever deeper into forest margins, affect large areas of understory vegetation (which is not detected by remote sensing), and take an ever greater cumulative toil on soil quality and its ability to sequester carbon.

Forest regrowth may account for a large part of the land carbon sink in some regions (e.g., Pacala et al., 2001; Schimel et al., 2001; Hurtt et al., 2002; Sitch et al., 2005), while combustion of vegetation and soil organic matter may be responsible for a significant fraction of the interannual variability in CO2 (Cochrane, 2003; Nepstad et al., 2004; Kasischke et al., 2005; Randerson et al., 2005).

Unless the land use changes are permanently away from vegetation, as in paving a large area, the net carbon emissions are zero since whatever gets removed will grow back and thus consume the excess CO2.

There are a couple of lines in IPCC Working Group I («New coupled climate - carbon models (Betts et al., 2004; Huntingford et al., 2004) demonstrate the possibility of large feedbacks between future climate change and vegetation change, discussed further in Section 7.3.5 (i.e., a die back of Amazon vegetation and reductions in Amazon precipitation).»).