​In order to enrich the biological diversity of Zhongdu Wetland, an artificial habitat is built in the hope of attracting damsel flies (Ischnura senegalensis). The water pavilion circulates water by purifying it and returning it to the wetland. Dirty water flows from top to bottom through algae, quartz sand and activated carbon filters, then through the habitats of wildlife, before returning to the wetland. The customised biological micro-architecture enables us to experience the ecological equality of coexisting with the environment.