Abstract
This study aims to assess the impacts of land use change (LUC) on soil properties and soil organic carbon content (SOCC) in the mountainous regions of Nghe An province, Vietnam. Soil samples were surveyed from forest plant area (FPA), annual plant area (APA), crop plant area (CPA), and bare hill area (BHA) at depths ranging from 0-50 cm during the period 2021-2023. The findings indicated that the conversion from FPA to BHA resulted in a significant decline in SOCC. In comparison to the topsoil layer, reductions of approximately 18.6-22.1% for FPA, 26.5-36.0% for CPA and APA, and up to 37.5% for BHA were observed in the soil profiles. These results underscore the sensitivity of SOCC to LUC across the study area. Moreover, the study contributes to our understanding of the implications of LUC on soil health and offers valuable insights for effective land management and conservation strategies. The conversion of FPA into various types of land use (TLU) has a detrimental impact on soil properties, highlighting the urgent necessity for sustainable land use practices.
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