农业环境科学学报2025，Vol.44Issue(7)：1920-1929,10.DOI:10.11654/jaes.2024-0832
苏南蟹虾养殖塘氨和温室气体排放的昼夜变化特征
Diurnal variation of ammonia and greenhouse gases emissions from crab and shrimp culture ponds in southern Jiangsu Province
摘要
Abstract
In this study,the diurnal variations of greenhouse gases(N2O,CH4)and NH3 at the water surface-atmosphere interface of intensive crab-shrimp mixotrophic pond(C-SP)and shrimp monoculture pond(SP)were determined by the floating chamber-gas chromatography method and continuous airflow enclosure method respectively.In addition,meteorological conditions and physicochemical indexes of the water were recorded simultaneously.Both C-SP and SP ponds acted as the sources of N2O,CH4 and NH3 on the daily scale.In the C-SP and SP,the diurnal averaged fluxes were 0.10 mg·m-2·h-1 and 0.11 mg·m-2·h-1 for N2O,0.18 mg·m-2·h-1 and 0.24 mg·m-2·h-1 for CH4,and 0.23 mg·m-2·h-1 and 0.12 mg·m-2·h-1 for NH3,respectively.There was a significant daily variation in NH3 emissions from C-SP and SP with daily coefficients of variation of 54.23%and 92.80%,respectively.The CH4 release flux was significantly lower by 25.00%(n=7,P<0.05)and the NH3 emission flux was higher by 91.67%for C-SP as compared to SP.关键词
温室气体通量/氨排放/水-气界面/昼夜变化Key words
greenhouse gases flux/ammonia emission/water-gas interface/diurnal variation分类
农业科技引用本文复制引用
赵飞,田玉华,尹斌,赵旭..苏南蟹虾养殖塘氨和温室气体排放的昼夜变化特征[J].农业环境科学学报,2025,44(7):1920-1929,10.基金项目
国家重点研发计划项目(2021YFD1700805) National Key Research and Development Program(2021YFD1700805) （2021YFD1700805）
