Carbon Sequestration Is The Removal And Long Term Storage Of Atmospheric Co2
Carbon sequestration is the removal and long-term storage of atmospheric CO2 in the ocean, geological landforms, soils, and biotic pools. These storage forms can act as a carbon source or sink; the size of the flow of CO2 to and from the atmosphere into oceans, soil and geologic landforms will determine if they will become carbon sources or sinks. When carbon is stored in soils, it is called soil carbon sequestration (SCS) and about 75% of carbon sequestered on land is stored in soil (Powlson et al, 2011). The carbon is then stored either as soil organic or inorganic carbon and about 46% of vegetative carbon and 33% of soil carbon is found in the tropical rain forest (Fisher and Binkley, 2011). The concentration of CO2 in the atmosphere has increased from 280ppmv/year in 1750 to 367ppmv/year in 1999 and currently increases at a rate of 1.5ppmv/year (Powlson et al, 2011). This increase has contributed to the recent climate change and this has affected the capability of soils to sequester carbon in regions of the world. Other factors that affect SCS includes texture, moisture (drainage), soil temperature, pH, carbon to nitrogen ratio (C: N), vegetation cover, the nutrient regime and climatic conditions (Powlson et al, 2011).The objectives of my handout are to define soil carbon sequestration, factors and practices that affect SCS, emphasizing on climate change as major affecting factor.
The importance of soil carbon sequestration
The soil organic carbon (SOC) acts…