Chapter+16

page 177

1a) plankton b) rises steadily until reaching a plateau at day five; slow decline over the rest of the monitoring period; c) waste from animals; detritus from algae/animals/plankton; collect in sediment; detritus-based food chain does not leave sediment; P becomes trapped in sediment;

2. a) trees/plants; b) equatorial forest; c) nutrients primarily stored in above ground compartment/not in soil; transfer of nutrients out of system when trees removed; d) respiration; e) nutrients are locked in permafrost; f) detritus trapped in permafrost; with melting, detritus becomes available for respiration;