Method for improving carbon sequestration capacity of soil in newly-reclaimed cultivated land area

Abstract

The invention relates to the technical field of soil carbon sequestration, and particularly discloses a method for improving the carbon sequestration capacity of soil in a newly-cultivated cultivated area, which comprises the following steps: S1, grooving in a newly-cultivated area side by side, and accumulating the soil dug by grooving on the side surface of a groove; s2, a soil carbon sequestration conditioner is prepared, and water is added for dilution; s3, the conditioner prepared in the step S2 is poured into the groove formed in the step S1, and the dug soil is backfilled; s4, after backfilling is conducted for 3-5 days, rotary tillage is conducted on the backfilled soil, so that the soil in different areas is evenly mixed; s5, the area subjected to rotary tillage in the step S4 is compacted, and humus soil is laid on the surface of the soil; s6, uniformly spraying a microbial agent into the humus soil, and then planting crops at the sowing time; according to the method provided by the invention, the soil in the newly cultivated area can be effectively improved, and the carbon sequestration capability of the soil can be effectively improved; the method is simple in step, easy to operate, short in improvement process time, quick in effect and easy to popularize.

Description

technical field [0001] The invention relates to the technical field of soil carbon sequestration, in particular to a method for improving soil carbon sequestration capacity in newly reclaimed areas. Background technique [0002] More people and less land is our basic national condition. The rapid urbanization process has led to a large decrease in cultivated land. Although the most stringent land use control and cultivated land protection systems have been implemented, we still face the plight of cultivated land loss and quality decline. New reclamation is a measure for redevelopment and utilization of land, but the newly reclaimed farmland generally has low soil fertility. In addition, 80% of the original organic carbon in the surface soil was mineralized and decomposed during the soil disturbance process, and the soil organic carbon Reserves are extremely low, only 40-60% of normal farmland. [0003] The existing soil structure conditioning technology mainly focuses on im...

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Problems solved by technology

[0002] More people and less land is our basic national condition. The rapid urbanization process has led to a large decrease in cultivated land. Although the most stringent land use control and cultivated land protection system has been implemented, we still face the dilemma of loss and quality of cultivated land.

New reclamation is a measure for redevelopment and utilization of land, but the newly reclaimed farmland generally has low soil fertility. In addition, 80% of the original organic carbon in the surface soil was mineralized and decomposed during the soil disturbance process, and the soil organic carbon Reserves are extremely low, only 40-60% of normal farmland

[0003] The existing soil structure conditioning technology mainly focuses on improving soil water retention performance, improving soil salinization, improving soil structure, passivating heavy metals and other environmental issues, and less consideration is given to the effect of carbon fixation and stable production

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