Themes

Main findings

Interpretation

References

Impact of vegetation restoration on the organic carbon content

Vegetation restoration has been projected as an effective tool for increasing the organic carbon content.

Significantly higher SOCC was found in natural vegetation restoration as compared to the managed vegetation and tillage land.

Natural vegetation restoration can enhance soil organic carbon (SOC).

The transformation and conversion to planted forests took in greater SOC accumulation as compared to another land usage.

[31] - [36]

Factors influencing vegetation restoration

Vegetation restoration highly relates to the progress of gully erosion.

Soil organic matter influences vegetation restoration to a greater extent.

Temperature, rainfall, and wind also proved to be important factors.

Soil taken from the densely cultivated land and assessed at a given interval of time proved to be a great positive enhancement factor for vegetation restoration

[37] - [42]

Factors controlling soil organic carbon

Various factors, especially soil, water, and crop management, impact SOC sequestration.

The carters of soil organic carbon storage are more likely to be distinct in significance about factors that are controlling for SOC

The primary sources of prediction for SOC dynamics include changes in soil properties, quality, the number of carbon inputs, and the composition of the C pool.

[5] [18] [19]

Soil organic carbon (SOC) decomposition rates by vegetation restoration

GGP improved the content of SOC. The increased accumulation of organic carbon in the soil led to an increased rate of decomposition of SOC to maintain the balance between the atmospheric CO₂ and C pools in the soil.

The Inorganic N decreases the priming effect, while the organic N is found to have a positive priming effect. The organic inputs are found to be effective for SOC.

The decomposition rate of soil organic carbon shows a positive and significant relationship with total bacterial, microbial, actinomycetes PLFAs and soil enzyme activities. Thus, the enzymatic activity, as well as the structure of the microbial community, are found to be associated with the decomposition rate of SOC.

[20] [21] [22] [23] [24] [43]

Changes in proportion of new and old soil organic carbon

The incorporation of Carbon is lowered in the upper layer of soil as compared to the depth of the soil as a result of “land use for crops.”

The soil dynamics, as well as the land use, are found to be dependent on the depth of the soil

The vegetation, as well as the characteristics of the soil, play an essential role in increasing the SOC stock, which in return also increases the efflux of CO₂ in the atmosphere.

The fertilization by carbon dioxide and warming is found to significantly impact the stocks of SOC in new soil.

[25] - [30]