Through the process of photosynthesis, plants assimilate carbon and return some of it to the atmosphere through respiration. The carbon that remains as plant tissue is then consumed by animals or added to the soil as litter when plants die and decompose. The primary way that carbon is stored in the soil is as soil organic matter (SOM). SOM is a complex mixture of carbon compounds, consisting of decomposing plant and animal tissue, microbes (protozoa, nematodes, fungi, and bacteria), and carbon associated with soil minerals. Carbon can remain stored in soils for millennia, or be quickly released back into the atmosphere. Climatic conditions, natural vegetation, soil texture, and drainage all affect the amount and length of time carbon is stored.
Biochar helps the green house in two ways:
The raw material used in making of biochar is derived from sustainable Forest Initiative certified The biomass absorbs atmospheric carbon dioxide as part of its natural growth cycle, burning of charcoal derived from this process is carbon neutral therefore and qualifies as a renewable energy feeds tocks
Biochar applied for agriculture sequesters carbon and permanently retires it without creating new carbon dioxide, thus it createscarbon negative situation, Each ton of carbon sequestered 3.7 tons of Greenhouse Gas Credits (GHG)
This qualifies Karr to receive carbon credits on the full amount of carbon that is sequestered.
Carbon credits can be sold at $15/ton which leads to increased revenue.
Removing CO2 from the atmosphere is only one significant benefit of enhanced carbon storage in soils. Improved soil and water quality, decreased nutrient loss, reduced soil erosion, increased water conservation, and greater crop production may result from increasing the amount of carbon stored in agricultural soils. Management techniques, which are successful in providing a net carbon sink in soils, include the following:
Conservation tillage minimizes or eliminates manipulation of the soil for crop production. It includes the practice of mulch tillage, which leaves crop residues on the soil surface. These procedures generally reduce soil erosion, improve water use efficiency, and increase carbon concentrations in the topsoil. Conservation tillage can also reduce the amount of fossil fuel consumed by farm operations. It has been estimated to have the potential to sequester a significant amount of CO2.
Cover cropping is the use of crops such as clover and small grains for protection and soil improvement between periods of regular crop production. Cover crops improve carbon sequestration by enhancing soil structure, and adding organic matter to the soil.
Crop rotation is a sequence of crops grown in regularly recurring succession on the same area of land. It mimics the diversity of natural ecosystems more closely than intensive mono-cropping practices. Varying the type of crops grown can increase the level of soil organic matter. However, effectiveness of crop rotating depends on the type of crops and crop rotation times.