Soil carbon is a large component of the global carbon cycle and its management can
significantly affect the atmospheric CO2 concentration. An important management issue is …

Routine soil surveys for estimating the soil organic carbon (SOC) pool account for a soil
depth of about 1 m. Deeper soil horizons, however, may have a high capacity to sequester …

Soil organic matter (SOM) is known to play vital roles in the maintenance and improvement
of many soil properties and processes. These roles, which largely influence soil functions …

Agricultural soils, having been depleted of much of their native carbon stocks, have a
significant CO2 sink capacity. Global estimates of this sink capacity are in the order of 20‐30 …

Leaching losses of N are a major limitation of crop production on permeable soils and under
heavy rainfalls as in the humid tropics. We established a field trial in the central Amazon …

Terra Preta soils of central Amazonia exhibit approximately three times more soil organic
matter, nitrogen and phosphorus and 70 times more charcoal compared to adjacent infertile …

Feeding the world's growing population is a serious challenge. Food insecurity is
concentrated in developing nations, where drought and low soil fertility are primary …

Biomass currently accounts for about fifteen per cent of global primary energy consumption
and is playing an increasingly important role in the face of climate change, energy and food …

Publisher Summary This chapter discusses the magnitude and dynamics of the soil organic
carbon (SOC) and soil inorganic carbon (SIC) pools. The chapter also describes the impact …

A three-year field experiment in a winter wheat–rice cropping system was performed to
compare the influence on soil microbial parameters including microbial activity, abundance …