华中农业大学学报2025，Vol.44Issue(3)：38-44,7.DOI:10.13300/j.cnki.hnlkxb.2025.03.005
稻-鸭-虾模式对稻田生态系统碳排放及碳固定的影响研究
Effects of farming models of rice-duck-crayfish on carbon emissions and carbon sequestration in rice paddy ecosystems
摘要
Abstract
The characteristics of carbon emission and carbon sequestration under different farming models of rice-duck-crayfish were compared with those under the traditional farming model of single rice cropping and rice-crayfish farming.The rice variety Huamoxiang 5,the crayfish(Procambarus clarkii),and duck variety Wuqin No.10 were used to conduct a field experiment at the Shuangshui Shuanglü Institute Base of Huazhong Agricultural University in Jingzhou,Hubei Province.The effects of different farming mod-els on the methane(CH4)emission,nitrous oxide(N2O)emission,global warming potential(GWP),greenhouse gas emission intensity(GHGI),and carbon sequestration potential in paddy fields were studied.The results showed that the CH4 emissions,GWP,and GHGI under the farming model of rice-duck-cray-fish reduced by 28.1％to 32.1％,27.0％to 30.7％,23.0％to 26.7％,while the carbon sequestration in-creased by 2 089 to 2 569 kg/hm2 compared to that under the traditional model of single rice cropping.The CH4 emissions,GWP,and GHGI under the farming model of rice-duck-crayfish reduced by 18.6％to 23.1％,17.9％to 22.2％,and 18.7％to 22.0％,while the carbon sequestration increased by 616 to 1 096 kg/hm2 compared to that under the rice-crayfish farming model.It is indicated that the farming model of rice-duck-crayfish can reduce carbon emissions and increase the level of carbon neutrality in rice paddy fields,with the farming model of rice-duck-crayfish in large field blocks having the best effects on the reduc-tion of emissions and the sequestration of carbon.关键词
稻-鸭-虾模式/稻田种养/碳排放/碳固定/CH4排放/N2O排放Key words
ecological farming of rice-duck-crayfish/integrated farming in paddy field/carbon emis-sion/carbon sequestration/CH4 emissions/N2O emissions分类
农业科技引用本文复制引用
刘银涛,王晓东,曹凑贵,汪金平,顾泽茂,刘娟,江洋..稻-鸭-虾模式对稻田生态系统碳排放及碳固定的影响研究[J].华中农业大学学报,2025,44(3):38-44,7.基金项目
湖北洪山实验室重大项目(2021HSZD002) （2021HSZD002）
国家重点研发计划项目(2022YFD2400700) （2022YFD2400700）
湖北省自然科学基金项目(2023AFB789) （2023AFB789）
武汉市科技特派员产学研专项(2023110201030656) （2023110201030656）
