珠江口区域河流有机碳通量研究  

Study on river organic carbon flux in the Pearl River estuary region

作　　者：周振球 许培栋 尹娟 王成志 李大伟 Zhou Zhenqiu;Xu Peidong;Yin Juan;Wang Chengzhi;Li Dawei(West Zhuhai Ecological Environment Monitoring Center,Zhuhai 519000,China;Hong Kong-Guangdong Joint Laboratory of Water Safety,Zhuhai 519087,China;Zhuhai Ecological Environment Technology Center,Zhuhai 519000,China)

机构地区：[1]珠海市西部生态环境监测中心,广东珠海519000 [2]粤港水安全保障联合实验室,广东珠海519087 [3]珠海市生态环境技术中心,广东珠海519000

出　　处：《环境科学与管理》2024年第8期101-106,共6页Environmental Science and Management

基　　金：粤港水安全保障联合实验室开放基金资助项目(项目资助号:GHJLWS-09)。

摘　　要：河流链接陆地与海洋,在全球碳循环中发挥着重要作用,通过对区域河流有机碳通量的调查研究,对了解区域碳汇对碳循环的贡献有重要意义。研究对珠江口下游珠海境内入海河流开展了持续一年两次的丰水期、枯水期采样监测,同时采集水文信息。结果表明:总有机碳的监测结果与化学需氧量的监测结果有明显的相似性;通过通量核算,枯水期总有机碳排放量为1804.45 g/s,丰水期总的碳通量为3331.04 g/s;丰水期的碳排放量大概是枯水期的两倍;丰水期、枯水期的碳排放最大点均在大门口水道分别为2327.60 g/s、917.87 g/s;结合历史排放的统计情况,为下一步周边海域污染治理提供数据支持。Rivers connect land and ocean and play an important role in the global carbon cycle.The investigation of regional river organic carbon fluxes is of great significance to understand the contribution of regional carbon sinks to carbon cycle.The study carried out sampling and monitoring of the rivers entering the sea in the lower reaches of the Pearl River Estuary in the territory of Zhuhai twice a year,and collected hydrological information at the same time.The results show that the monitoring results of total organic carbon are obviously similar to that of chemical oxygen demand.Through flux calculation,the total organic carbon emission was 1804.45 g/s in dry season and 3331.04 g/s in wet season.Carbon emissions in the wet season are about twice as high as in the dry season;The maximum carbon emission points were 2327.60 g/s and 917.87 g/s in the gate waterway in wet season and dry season,respectively.Combined with the statistical situation of historical emissions,it provides data support for the next step of pollution control in the surrounding sea area.

关 键 词：珠江口 总有机碳 化学需氧量 碳通量 

分 类 号：X832[环境科学与工程—环境工程]