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How are plants an effective carbon sink? I know they consume CO2 and capture the carbon to build their structure, but after the plant dies, it decomposes (burning the carbon with oxygen metabolically), or is burned by a fire and releases the CO2 back to the atmosphere.
On average, what percentage of carbon is permanently captured after a plant dies? It must be an extremely small amount, but I have never been able to find an approximation anywhere.
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