For example, Li et al. Thus, a continuity of management purpose is required to maintain or increase soil carbon reliably. Current Knowledge and Scientific Uncertainties Data exist for many locations, predominately in temperate countries but increasingly in tropical regions. The mechanisms by which grazing influences ecosystem carbon storage are relatively well understood, but the magnitude of carbon change as a function of grazing intensity is uncertain for many grasslands. Environmental changes such as climate variability, climate change, and atmospheric CO 2 increases are likely to impact carbon stocks.
Allometric relationships allow estimation of root biomass.
Existing grassland carbon models that incorporate grazing, appropriately parameterized, could be used in verification. Statistics or surveys of animal stocking rates could be used for rough estimates of past and current grazing intensity. Removals Biomass is removed by livestock and other herbivores, by fire, and through detachment and decomposition. Soil carbon is removed mainly by decomposition and erosion. Both processes are strongly influenced by management.