上海海洋大学学报2025，Vol.34Issue(3)：530-540,11.DOI:10.12024/jsou.20240504534
骆马湖中华绒螯蟹养殖区与非养殖区水-气界面CO2通量日变化特征的比较
Comparison of daily variation characteristics of CO2 fluxes at the water-gas interface between aquaculture and non-aquaculture areas of Eriocheir sinensis in Luoma Lake
摘要
Abstract
In order to compare the differences between the CO2 fluxes at the water-air interface between the aquaculture areas and the non-aquaculture areas of Eriocheir sinensis on the lake surface and the factors affecting the CO2 fluxes.The experiment was carried out at Luoma Lake from August 4 to August 5,2023,where CO2 fluxes were measured at the water-air interface between the aquaculture areas and the non-aquaculture areas of Eriocheir sinensis of the lake by using the PS-9000 Portable Automatic Measurement System of Carbon Fluxes and the synchronized measurement of the meteorological factors and water quality indices were analyzed at the same time.The results showed that the average value of CO2 fluxes in the aquaculture area was 0.012 μmol/(m2·s),which showed an overall CO2 emission source,and the CO2 fluxes in the non-aquaculture area was-0.006 μmol/(m2·s),which showed an overall CO2 sink.However,both aquaculture and non-aquaculture areas exhibit CO2 as a source during the day and a sink at night.Multiple stepwise regression analyses showed that the main environmental factors affecting CO2 fluxes differed between aquaculture and non-aquaculture areas,with air temperature and pH being the the former and total phosphorus,nitrate nitrogen and total organic carbon being the the latter.The results of the study revealed the characteristics and influencing factors of CO2 fluxes at the water-gas interface between aquaculture and non-aquaculture areas of Eriocheir sinensis in lake,which provides data support for an in-depth understanding of the CO2 fluxes characteristics of different aquaculture functional areas of freshwater lakes.关键词
中华绒螯蟹/骆马湖/CO2通量/围网养殖/环境因子Key words
Eriocheir sinensis/Luoma Lake/CO2 fluxes/purse-seine farming/environmental factors分类
环境科学引用本文复制引用
肖霖,徐克,华清红,赵雨轩,孙云飞,成永旭..骆马湖中华绒螯蟹养殖区与非养殖区水-气界面CO2通量日变化特征的比较[J].上海海洋大学学报,2025,34(3):530-540,11.基金项目
国家现代农业产业技术体系专项(CARS-48) （CARS-48）
