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Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment

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大气湿和干沉积在埃尔海湖,中国

Qikun Shen¹, Xiaoyun Du¹, Jiahui Kang¹

¹College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, Key Laboratory of Plant-Soil Interactions, Ministry of Education, National Observation and Research Station of Agriculture Green Development (Quzhou, Hebei), China Agricultural University, Beijing 100193, China.

Environmental pollution (Barking, Essex : 1987)

|May 24, 2024

概括

大气沉积对埃尔海湖产生重大影响,溶解的有机是湿和干沉积的最大贡献者. 湿沉积占总输入的大部分,突出其对湖泊管理的重要性.

科学领域:

环境化学环境化学
大气科学大气科学
临界技术临界技术

背景情况:

埃尔海湖的含量可能有限,使大气沉积成为影响其水质的关键因素.
关于大气沉积对埃尔海湖生态系统的具体贡献的先前研究有限.
了解的来源对于管理淡水湖泊的肥胖风险至关重要.

研究的目的:

量化埃尔海湖中总 (TP) 和其成分 (溶解无机 - DIP,溶解有机 - DOP,颗粒 - PP) 的潮湿和干燥沉积流.
为了确定不同物种对大气沉积的相对贡献.
为了确定季节性模式和潜在的来源影响大气度在埃尔海湖周围.

主要方法:

在埃尔海湖周围建立了五个湿地和两个干地沉积物监测站点.
使用自动雨水收集器收集湿沉积样本.
使用空气中的度测量和推理模型估计的干沉积流.
在沉积样本中分析的物种 (DIP,DOP,PP).
利用了潜在的来源贡献函数和度加权轨迹分析.

主要成果:

溶解有机 (DOP) 是湿 (50%) 和干 (51%) 沉积中占主导地位的成分.
湿沉积约占每年大气沉积总量的83%.
观察到季节性变化,夏季占主导地位的湿沉积和干沉积的春秋关键.
当地排放和来自周边城市的远程运输显著影响了气溶中的度.

结论:

大气沉积,特别是湿沉积,在埃尔海湖的预算中起着重要作用.
在大气沉积中DOP的占主导地位强调了需要有针对性的管理策略.
这些发现为制定有效的管理计划提供了关键数据,以保护埃尔海湖的水质.

关键词:

干燥沉积方式干燥沉积方式埃尔海湖是埃尔海湖的一个组成部分.是一种的物质.水的质量水的质量湿沉积的湿沉积方式

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相关概念视频

The Phosphorus Cycle

The Phosphorus Cycle

Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.