Flood-season agricultural area fruit and vegetable composite ecological system based on nitrogen and phosphorus reduction

The invention discloses a flood-season agricultural area fruit and vegetable composite ecological system based on nitrogen and phosphorus reduction. The system comprises a fruit and vegetable composite ecological system body used for nitrogen and phosphorus reduction, a non-power water delivery system used for river diversion in a flood season, and a power water delivery system used for river auxiliary diversion. Eutrophicated water is purified based on the fruit and vegetable composite ecological system; a water quality pretreatment system, the fruit and vegetable ecological system and a secondary purification system are used for conducting nitrogen and phosphorus reduction on water diversion from a water source, so that water is purified, no new pollutant is generated in the whole process, ecological balance can be guaranteed, and the ecological significance of sustainable development is achieved. 本发明公开了一种基于氮磷消减的汛期农区果蔬复合生态系统，包括用于进行氮磷消减的果蔬复合生态系统本体，用于汛期河流引水的非动力输水系统，以及用于河流辅助引水的动力输水系统；本发明基于果蔬复合生态系统对富营养化的水质进行净化处