The application of bio-char (charcoal or biomass-derived black carbon (C)) to soil is
proposed as a novel approach to establish a significant, long-term, sink for atmospheric …

Forest soil respiration is the sum of heterotrophic (microbes, soil fauna) and autotrophic
(root) respiration. The contribution of each group needs to be understood to evaluate …

This report is the first complete assessment of the science of climate change since Working
Group I (WGI) of the IPCC produced its second report Climate Change 1995: The Science of …

Forest systems cover more than 4.1× 109 hectares of the Earth's land area. Globally, forest
vegetation and soils contain about 1146 petagrams of carbon, with approximately 37 …

The following are discussed:(a) soil morphology,(b) soil classification,(c) weathering and soil
profile development,(d) factors of soil formation,(e) influence of parent materials,(f) influence …

When agricultural land is no longer used for cultivation and allowed to revert to natural
vegetation or replanted to perennial vegetation, soil organic carbon can accumulate. This …

Soil respiration is the primary path by which CO 2 fixed by land plants returns to the
atmosphere. Estimated at approximately 75× 10 15 gC/yr, this large natural flux is likely to …

Soil organic matter (SOM) anchors global terrestrial productivity and food and fiber supply.
SOM retains water and soil nutrients and stores more global carbon than do plants and the …

Soils in equilibrium with a natural forest ecosystem have high carbon (C) density. The ratio
of soil: vegetation C density increases with latitude. Land use change, particularly …

The concentration of CO2 in the atmosphere has risen from close to 280 parts per million
(ppm) in 1800, at first slowly and then progressively faster to a value of 367 ppm in 1999 …