Responses of soil organic carbon cycle to land degradation by isotopically tracing in a typical karst area, southwest China.

ABSTRACT:

Background

The loss of soil organic carbon (SOC) under land degradation threatens crop production and reduces soil fertility and stability, which is more reflected in eco-sensitive environments. However, fewer studies simultaneously compared SOC variations and δ¹³C_SOC compositions under diverse land uses, especially in karst areas.

Methods

Soil profiles from two agricultural lands and a secondary forest land were selected to analyze SOC contents and their stable isotope composition (δ¹³C_SOC) in a typical karst area located in southwest China to understand the response of the SOC cycle to land degradation. Moreover, the relationships between SOC contents and mean weight diameter (MWD) and soil erodibility (K) factor we

SUBMITTER: Han R 

PROVIDER: S-EPMC10194080 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature