The invention discloses a lake and bay
habitat maintenance method based on hierarchical calculation, and relates to the technical field of water
ecological environment protection and ecological restoration, the effective
water body volume of a lake is accurately calculated by combining
terrain scanning with a partition weighted correction formula, and the
volume estimation deviation of a traditional method is avoided; on the basis, the existing
biomass of the
plankton is subjected to layered correction, and the
estimation precision of the
primary productivity of the lake is improved, so that a scientific basis is provided for the proliferation capacity of filter-feeding fishes. Through
water level and
water quality dynamic correction and in combination with submerged
vegetation population structure regulation and control,
vegetation degradation caused by excessive
ingestion of fishes can be effectively avoided. Further introducing batch
stocking of the snails and the
shellfish, constructing a closed-loop mechanism of
snail ingestion-
plankton reproduction-
shellfish filter feeding-fish utilization-
vegetation restoration, finally forming a fish,
shellfish, snails and grass synergistic ecological balance
system, and realizing long-term stable maintenance of the lake and bay
habitat.