Combined ecological floating bed for purification of eutrophicated water source in cold and warm seasons

The invention discloses a combined ecological floating bed for purification of eutrophicated water source in cold and warm seasons. The combined ecological floating bed comprises a stereo floating bed framework made of moso bamboos, the upper end of the stereo floating bed framework is wound by steel wires to form a latticed packing suspension portion, the top of bamboo packing stringed by a center rope is fixed onto the packing suspension portion, a bearing block is connected to the bottom of the bamboo packing, the bamboo packing is made by that thick bamboo fibers serving as a base material are fixedly inserted into the center rope, and the thick bamboo fibers in stereo uniform arrangement are in a radial structure. In warm seasons, a fishing net is laid on the packing suspension portion, and water purification plants are plant above the fishing net; in cold seasons, besides the fishing net, a layer of nonwoven fabrics is laid on the packing suspension portion, and ryegrass is planted above the nonwoven fabrics. The combined ecological floating bed has the advantages that effectiveness in water purification, especially water purification in winter, is improved, and the combined ecological floating bed is suitable for large-scale popularization and application.