Benefit analysis of wetland restoration project based on ecosystem service value: a case study of Caijia River, Beijing Wetlands of priority restoration in Northeast China based on spatial analysis. Recent advances in wetland degradation research Theories and techniques of degraded wetland ecosystem restoration Response of soil seed banks to invasion by Echinochloa caudata in restored Scirpus planiculmis wetlands in the Momoge National Nature Reserve Effects of farming on wetland soil seed banks in the Sanjing Plain and wetland restoration potential Farmers,response to policy of wetland protection and restoration in Sanjiang Reserve