Multi-layer aquatic plant community system and low-carbon construction method

The invention provides a multi-layer aquatic plant community system and a low-carbon construction method.The multi-layer aquatic plant community system comprises a supporting main shaft and two or more supporting frames, the two or more supporting frames are arranged on the two sides of the supporting main shaft, and the supporting frames are connected with the supporting main shaft through connecting rods; the support frame is provided with more than two layers of submerged platforms from top to bottom, and the submerged platforms are used for planting submerged plants in a shallow water area and submerged plants in a deep water area; the top of the supporting main shaft is provided with an emergent water carrying platform used for planting emergent water plants, and the installation height of the emergent water carrying platform is larger than the height of the upper-layer submerged carrying platform. The connecting rod is arranged below the lowermost submerged platform deck, and a light supplementing lamp