Question

How does flood affect vegetation?

Answer 1

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There are many ways that flooding can damage plants. Excessive moisture in soil decreases oxygen levels. This impedes respiration (where energy is released from sugars) in the roots leading to the build-up of carbon dioxide, methane and nitrogen gases. Ultimately, the roots can suffocate and die.
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Answer 2

There are many ways that flooding can damage plants . Excessive moisture in soil decreases oxygen levels . This impeded respiration ( when energy is released from sugar ) in the root leading to the build-up of carbon dioxide, meathene and nitrogen gases . Ultimately, the root can suffocate and die .