Explain the concept of carbon sequestration in soils. How can horticultural practices enhance carbon sequestration and contribute to climate change mitigation?

Carbon sequestration in soils refers to the process of capturing atmospheric carbon dioxide (CO2) and storing it in the soil as organic carbon. This process plays a crucial role in mitigating climate change by reducing the concentration of greenhouse gases in the atmosphere. Horticultural practices can enhance carbon sequestration by promoting the accumulation of organic matter in soils and adopting sustainable management techniques. Here’s an in-depth explanation of carbon sequestration in soils and its relationship with horticultural practices: Concept of Carbon Sequestration in Soils: 1. Mechanisms of Carbon Sequestration: Carbon sequestration in soils occurs through several mechanisms: - Photosynthesis: Plants absorb CO2 from the atmosphere during photosynthesis, converting it into organic carbon compounds through biochemical processes. - Root Exudates: Plants release sugars and other organic compounds through their roots, which stimulate microbial activity in the soil. Microbes decompose organic matter and stabilize carbon in soil aggregates. - Soil Organic Matter: Organic matter derived from plant residues, decomposed plant material (humus), and microbial biomass contributes to soil carbon stocks over time. 2. Types of Soil Carbon: Soil carbon exists in two forms: - Labile Carbon: Easily decomposable carbon compounds that....