Assessment of Soil Organic Carbon Levels in Agricultural Soils Under Different Management Practices

Thesis Abstract

Abstract
Soil organic carbon (SOC) is a critical component of soil health and fertility, playing a key role in various soil processes and ecosystem functions. The management practices employed in agricultural systems can significantly influence SOC levels, with implications for soil quality, crop productivity, and environmental sustainability. This study aimed to assess the impact of different management practices on SOC levels in agricultural soils, focusing on understanding the dynamics of SOC under varying management regimes. The research was conducted through a comprehensive literature review to establish the current state of knowledge on SOC dynamics in agricultural soils and the factors influencing SOC sequestration and decomposition. Ten key themes emerged from the literature review, providing insights into the importance of soil management practices, land use changes, climate effects, and biotic interactions on SOC levels. In the research methodology chapter, the study design, sampling procedures, and analytical methods used for SOC assessment were described in detail. Eight key components of the research methodology were outlined, including soil sampling protocols, laboratory analyses, statistical methods, and data interpretation techniques. The findings chapter presented an in-depth analysis of the data collected from the field study, highlighting the differences in SOC levels observed under different management practices. The results indicated that SOC levels varied significantly across the study sites, with notable differences between conventional and sustainable farming systems. Factors such as tillage practices, crop rotation, organic inputs, and soil management history were found to influence SOC dynamics in agricultural soils. The discussion chapter delved into the implications of the study findings for soil management practices and agricultural sustainability. The results were interpreted in the context of existing literature, providing insights into the potential strategies for enhancing SOC sequestration and mitigating greenhouse gas emissions in agricultural systems. The importance of adopting sustainable soil management practices to enhance SOC levels and promote soil health was emphasized. In conclusion, this thesis contributes to the understanding of SOC dynamics in agricultural soils under different management practices. The research findings underscore the importance of sustainable soil management approaches in enhancing SOC levels, improving soil quality, and promoting agricultural sustainability. The study provides valuable insights for policymakers, land managers, and researchers seeking to optimize SOC sequestration in agricultural systems for long-term productivity and environmental benefits.