... fixed is gross production (GP), RsA is the energy used in the respiration of the autotrophic plant, and the amount of energy left over is net production (NP). The second formula is distinction between a "successional" or developmental ecosystem and "climax". In the successional system the total respiration is less than the gross production, leaving energy (NEP) that is built into stucture ... ...

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• Grade Level: Undergraduate