管理行动减轻了城市湖泊二氧化碳排放的风险
Qitao Xiao1, Wei Xiao2, Juhua Luo3
1Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China.
Journal of environmental management
|July 15, 2023
概括
城市湖泊排放大量的二氧化碳 (CO2). 长期数据显示,与管理行动相关的二氧化碳排放量正在下降,这表明这些努力可以减轻水生生态系统的风险.
科学领域:
- 环境科学 环境科学
- 临界技术 临界技术
- 气候变化研究 气候变化研究
背景情况:
- 湖泊是二氧化碳 (CO2) 排放的重要来源,受土地利用的影响.
- 城市湖泊的二氧化碳排放往往被忽视,尽管人类活动.
- 管理行动对湖泊二氧化碳排放的影响需要进一步调查,因为长期数据有限.
研究的目的:
- 为了研究二氧化碳的部分压力 (pCO2) 在两个城市湖泊超过16年的时间.
- 评估二氧化碳排放与环境因素,包括人为营养素之间的关系.
- 评估管理行动在影响城市湖泊二氧化碳排放方面的作用.
主要方法:
- 在武利湖和东湖进行了16年的pCO2现场测量 (2002-2017年).
- 分析了二氧化碳含量与氨,溶解有机碳,溶解氧和热量状态指数等参数之间的相关性.
- 检查了pCO2的年间变化和趋势,以确定影响因素.
主要成果:
- 每年的pCO2平均值表明,这两个湖泊的二氧化碳大量逃入大气.
- 发现了二氧化碳和人类衍生的营养素,溶解的有机碳和热量状态之间的强烈相关性.
- 观察到每年二氧化碳排放量显著下降,这可能与污染物负载的减少有关.
结论:
- 城市湖泊是大气中二氧化碳的重要来源.
- 管理行动,如生态恢复和工程,似乎可以减轻二氧化碳排放风险.
- 考虑人为影响和管理策略对于了解城市水生生态系统中的碳循环至关重要.
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