NCGG and Carbon Emissions and Sinks from and into Agricultural Systems

摘要

Beside ruminant animal and its wastes, soil is an important agricultural factor in carbon cycling. The soil can be both a contribution to and a recipient of the impacts of climate change. In the past, land cultivation has generally resulted in considerable depletion of soil organic matter and the release into the atmosphere of such GHG both NCGG and CO_2.. The observation in the North-South Transect of Eastern China show that climate change will strongly impact all soil processes and NCGG exchange between the soil and the atmosphere. Soil management can restore soil organic carbon in order to enhance soil structure and fertility and to help counter the atmospheric the greenhouse effect. The current National NCGG and CO_2 Inventories in selected countries of Asia (table) show that widely varying estimates of the soil's organic carbon content and of the potential for soil carbon sequestration point need to be enhanced.