Botany - Ecosystem Question with Solution | TestHub

NPP at first trophic level would be the GPP for second trophic level. NPP at second trophic level would be GPP for third trophic level. Therefore, $100x(\mathrm{kcal}/{\mathrm{m}}^2/\mathrm{yr}$ ) would be GPP at second trophic level and $100x\times 10\%\left(\mathrm{kcal}/{\mathrm{m}}^2/\mathrm{yr}\right)$ i.e., $10x\left(\mathrm{kcal}/{\mathrm{m}}^2/\mathrm{yr}\right)$ energy would be GPP at third trophic level.