The potential for carbon sequestration in the soil is estimated at 5.5 gigatons annually with good land management practices, equivalent to 13% of current emissions from all sectors.
据估计，在良好的土地管理实践中，每年土壤中碳潜在的封存量是55亿吨，相当于来自所有部门的温室气体排放量的13%。
However, most studies claiming to show carbon sequestration benefits for no-till only measure the carbon stored in the surface layer of soil (the top 20 cm).
然而，大部分声称免耕有益与碳固存的研究，仅仅测量了储存在土壤顶层(顶层20cm)中的碳。
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