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SL373: Carbon Sequestration in Grazing Land Ecosystems

Figure 1. Simplified carbon cycle diagram. While CO2 is removed from the atmosphere and incorporated into plant tissue via photosynthesis, it can also be re-emitted back to the atmosphere as plant (autotrophic) and soil microbial respiration (heterotrophic). The balance between carbon inputs and outputs determines the amount of carbon sequestered in the soil.