Posts

Showing posts with the label soils

Soils And Climate Change

Image
Soils are a crucial part of climate action. They are the biggest natural sinks, second to oceans and bigger than forests. They form part of the carbon cycle. Therefore, good soil management is part of climate action. Soils carry a reserve of carbon that is 2500 gigatons, more than what is in the air or stored by green plants. According to the Food and Agriculture Organization, the first 30 centimeters of soil holds double the quantity of carbon dioxide in the air. Additionally, a third of the world’s soils are degraded soils. Although all soil stores carbon, the specificity of soil type controls the amount that can be stored. Clayey soils, rich in aluminium and iron, locks in more carbon because they offer a larger surface area. Soils of volcanic origin also contain higher carbon content. Permafrost is the frozen soil beneath the ground. Permafrost means permanently frozen (frost) soil. Such soil types are usually frozen from beginning of the year to its end, no matter the season...