Abstract:A study on emergy evaluation of two kinds of original wetlands in Yancheng Natural Reserve was conducted.Suggestions on the sustainable development are given.In order to relieve the habitat pressure of coastal birds,it is necessary to build waterfowl ponds at the edge of the core zone.Fishponds can be built in the buffer zone,which will gain large economic benefits to maintain the feedback to waterfowl ponds and fishponds.The ratio of the waterfowl ponds area to fishponds area must fall between 0.19 and 8.0...