This paper proposes a rice-pheasant-mallard complex ecosystem on rice terrace cultivation model,which carry out rice terrace cultivation model by changing rice traditional planting model and realize water storage in ditch and dry-wet alternation infiltrating irrigation in ridging.Therefore,The above measures in the technology opens space for the growth of pheasant,which activities and predator on the ridge,and duck game and predator in the ditch.Finally,reduce water consumption on rice-duck complex ecosystem,the emission of methane in paddy...