This study investigates the environmental benefits of integrated rice-duck co-culture as a sustainable management practice in rice production.Through a comprehensive meta-analysis and life cycle assessment,we find not...This study investigates the environmental benefits of integrated rice-duck co-culture as a sustainable management practice in rice production.Through a comprehensive meta-analysis and life cycle assessment,we find notable differences of co-cultures from monocultures,including a 22%reduction in methane(CH_(4))emissions,a 34%increase in nitrous oxide(N_(2)O)emissions,a 2.8%rise in rice yields,and>100%increase in profits.Accounting for these on-site differences and the indirect emissions embedded in agricultural inputs,the carbon footprint of rice-duck co-culture per hectare of land is estimated to be 9%lower than that of monoculture.In addition to reducing the life-cycle greenhouse gas emissions of rice production and enhancing rice productivity,rice-duck co-cultures produce additional protein that can be used to displace industrially farmed duck or other meats.Scenario analysis indicates that scaling up rice-duck co-culture system in China could lead to important greenhouse gas savings.Overall,our study suggests that promoting rice-duck co-culture can contribute toward sustainable rice production and dietary change.展开更多
基金supported by the National Natural Science Foundation of China(grant number:52370193)
文摘This study investigates the environmental benefits of integrated rice-duck co-culture as a sustainable management practice in rice production.Through a comprehensive meta-analysis and life cycle assessment,we find notable differences of co-cultures from monocultures,including a 22%reduction in methane(CH_(4))emissions,a 34%increase in nitrous oxide(N_(2)O)emissions,a 2.8%rise in rice yields,and>100%increase in profits.Accounting for these on-site differences and the indirect emissions embedded in agricultural inputs,the carbon footprint of rice-duck co-culture per hectare of land is estimated to be 9%lower than that of monoculture.In addition to reducing the life-cycle greenhouse gas emissions of rice production and enhancing rice productivity,rice-duck co-cultures produce additional protein that can be used to displace industrially farmed duck or other meats.Scenario analysis indicates that scaling up rice-duck co-culture system in China could lead to important greenhouse gas savings.Overall,our study suggests that promoting rice-duck co-culture can contribute toward sustainable rice production and dietary change.
