Sentences with phrase «of soil carbon»

The loss of soil carbon persists long after the period of rapid thaw.

These experiments all measured how extra CO2 in the atmosphere affects plant growth, microbial production of carbon dioxide, and the total amount of soil carbon at the end of the experiment.

A 4 % annual growth rate of soil carbon stock would make it possible to stop the present increase of CO2 within the atmosphere.

There are a couple of challenges to the adoption of soil carbon in environmental markets.

Creating incentives for the adoption of sustainable agricultural practices in developing countries: The role of soil carbon sequestration.

The coalition used to have a policy of soil carbon storage which involved paying farmers to change the way they grew crops so as to increase the amount of carbon stored in the soil.

For the first time, these processes are represented in a computer model that predicts the fate of soil carbon as temperatures rise.

And since the planet's store of soil carbon is at least twice the quantity locked in the vegetation and the atmosphere, this could in turn accelerate global warming.

Nevertheless, there's a virtual consensus among soil scientists that Australian farmers shouldn't need any extra incentives to increase their levels of soil carbon.

The results back a paradigm shift in our understanding of soil carbon research.

The basic processes of soil carbon formation are observed and understood, but we can not see them.

The transfer of soil carbon to the atmosphere has created a carbon deficit in agricultural soils.

This effectively reduces the amount of carbon dioxide in the atmosphere and increases the amount of soil carbon available for healthy crops.

Historically, increases in agricultural productivity have typically been associated with rising emissions and the depletion of soil carbon.

One such capability is a deeper understanding of soil carbon.

Smith et al. (1997) calculated a considerable potential increase of soil carbon when manure, straw - recycling, minimal tillage, reforestation and energy - saving plant production are combined.

«Without recognizing the importance of anaerobic microsites in stabilizing soil carbon in soils, models are likely to underestimate the vulnerability of the soil carbon reservoir to disturbance induced by climate or land use change,» write first author Keiluweit and colleagues at Stanford, Oregon State University, Lawrence Berkeley National Laboratory and the Institute of Soil Landscape Research, Germany.

They also accounted for the rate of soil carbon decomposition as a function of temperature at the freeze - thaw boundary, which sinks deeper and deeper as soil warms.

Obviously, we don't have interior shallow seaways to dry up today, but one could envision a feedback process where warming accelerates oxidation of soil carbon, which leads to more warming, and so forth.

In destroying ecosystems, e.g. cutting down forests and managing agricultural soils unsustainably, the globe has been losing a significant quantity of soil carbon over the last 8000 years, since -LSB-...]

Australia is currently the world leader in the recognition of the soil carbon opportunity, and the development of carbon markets that include soil carbon.

As Hadley found, this event will be followed closely by the catastrophic «loss of soil carbon due to enhanced soil respiration as the climate warms and dieback of the Amazon forest [begins] due to regional rainfall reduction.»

It found that 62 petagrams of soil carbon will be released into the atmosphere by 2100, or about 68 billion U.S. tons.

The Initiative is based on the finding that «4 ‰» annual growth rate of the soil carbon stock would make it possible to stop the present increase in atmospheric CO2 and aims to use a range of agricultural systems to sequester CO2 and store it in the ground as soil organic carbon (SOC).

«Previous models tended to dramatically underestimate the amount of soil carbon at high latitudes because they lacked the processes of how carbon builds up in soil.

And though they cover just 3 to 5 percent of Earth's land surface, peatlands store a quarter of all soil carbon.

The science of soil carbon dynamics is evolving, with some researchers finding that soil could even play a role in boosting greenhouse gas emissions (ClimateWire, July 14, 2011).

But they're also a key part of the carbon cycle: Although wetlands cover only about 3 percent of Earth's surface, they account for as much as 30 percent of soil carbon storage.

Logging and other land - use changes are a major cause of soil carbon release, but there has been recent interest to further understand soil carbon dynamics in forested ecosystems after logging.

To understand the complex relationship that determines the fate of soil carbon, the Dartmouth researchers collected soil from shrub and grass vegetation in western Greenland and conducted controlled experiments back in the laboratory.

They write, «We show that anaerobic microsites are important regulators of soil carbon persistence, shifting microbial metabolism to less efficient anaerobic respiration and selectively protecting otherwise bioavailable, reduced organic compounds such as lipids and waxes from decomposition.

In a newly published study in the Journal of Geophysical Research, Masiello and colleagues, including current and former graduate students Lacey Pyle and Kate Magee, analyzed soil samples collected after the fire and found that charcoal behaved very differently from other forms of soil carbon as the land rebounded from the fire.

This redistribution of soil carbon storage raises questions of whether the balance provided by larger plants will stand in the long term or whether the more active microbes detected in the deeper soils will eventually offset the increased carbon in those deeper soils.

A mathematician by training, and now a Linus Pauling postdoctoral fellow in the Microbiology Group, Todd - Brown designs computer models of soil carbon cycling - or «how dirt breathes,» she explained in a #WomenInSTEM YouTube feature.

There are big uncertainties over how much of the soil carbon will decompose, he tells Carbon Brief:

He found that meadows (unimproved grasslands) are very efficient at absorbing and storing carbon — grasslands lock up a fifth of all soil carbon in the UK.

The math of soil carbon is that increasing soil organic matter by 1 % means 0.58 % carbon, but let's consider 0.5 % SOM.

Geoengineering is only presumed necessary for those who do not choose to understand the possibilities of soil carbon, which are greater than most realize, particularly in temperate zone grasslands.