文章摘要
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.
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
投稿时间:2024-10-03  
DOI:10.11654/jaes.2024-0832
中文关键词: 温室气体通量  氨排放  水-气界面  昼夜变化
英文关键词: greenhouse gases flux  ammonia emission  water-gas interface  diurnal variation
基金项目:国家重点研发计划项目(2021YFD1700805)
作者单位E-mail
赵飞 江苏常熟农田生态系统国家野外科学观测研究站(中国科学院南京土壤研究所), 南京 210008
中国科学院大学, 北京 100049
中国科学院大学南京学院, 南京 211135 
 
田玉华 江苏常熟农田生态系统国家野外科学观测研究站(中国科学院南京土壤研究所), 南京 210008
中国科学院大学, 北京 100049
中国科学院大学南京学院, 南京 211135 
 
尹斌 江苏常熟农田生态系统国家野外科学观测研究站(中国科学院南京土壤研究所), 南京 210008
中国科学院大学, 北京 100049
中国科学院大学南京学院, 南京 211135 
 
赵旭 江苏常熟农田生态系统国家野外科学观测研究站(中国科学院南京土壤研究所), 南京 210008
中国科学院大学, 北京 100049
中国科学院大学南京学院, 南京 211135 
zhaoxu@issas.ac.cn 
摘要点击次数: 1223
全文下载次数: 1159
中文摘要:
      本研究以苏南地区典型集约化蟹虾混养池塘(C-SP)和虾单养池塘(SP)为研究对象,用浮箱-气相色谱法和密闭抽气法在5月喂养期对养殖塘水-气界面温室气体(N2O、CH4)和NH3通量进行昼夜监测,并同步记录测定了气象及表层水体理化指标。结果显示C-SP和SP均表现为N2O、CH4和NH3的释放源。C-SP和SP的N2O日平均通量分别为0.10 mg·m-2·h-1和0.11 mg·m-2·h-1;CH4日平均通量分别为0.18 mg·m-2·h-1和0.24 mg·m-2·h-1;NH3日平均通量分别为0.23 mg·m-2·h-1和0.12 mg·m-2·h-1。C-SP和SP的NH3排放均表现出明显昼夜变化特征,日变异系数分别为54.23%和92.80%。与SP相比,C-SP的CH4排放通量显著降低了25.00%(n=7,P<0.05),而NH3排放通量升高了91.67%。
英文摘要:
      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 CSP 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.
HTML    查看全文   查看/发表评论  下载PDF阅读器