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作为水文流动的函数,溶解的有机物质在水库内的转化

Md Noim Imtiazy¹, Kristine Hunter¹, Jeff J Hudson¹

¹Department of Biology, University of Saskatchewan, Collaborative Science Research Building, 112 Science Place, Saskatoon, SK S7N 5E2, Canada.

Journal of environmental management

|January 17, 2024

概括

水库溶解有机物 (DOM) 组成受水流入量和停留时间的影响,影响饮用水质量. 自主DOM特征随着居住时间的延长而增加,这给水处理带来了挑战.

科学领域:

环境科学环境科学
水资源管理水资源管理
有机地化学有机地化学

背景情况:

水库对于淡水供应至关重要,尤其是在气候变暖的地区.
饮用水源中的溶解有机物 (DOM) 影响水质和水处理.
对于温带,半干旱水库中DOM动态的理解有限.

研究的目的:

在加拿大大大水库迪芬贝克湖 (Lake Diefenbaker) 调查DOM度和成分的变化.
使用线性混合效应建模分析8年的DOM数据.
确定河流流入量和水停留时间对DOM属性的影响.

主要方法:

收集和分析了8年的DOM度和成分数据.
使用线性混合效应建模来评估变量之间的关系.
使用DOM光学索引 (SUVA254,E4:E6比率) 和DOC:DON比率进行组合分析.
沿水库长度进行了旅行时间纠正的比较.

主要成果:

溶解有机碳 (DOC) 度与河流流入量没有相关性.
溶解有机 (DON) 随着输入量减少而增加.
流入显著影响了DOM组成,较高的流量有利于土著特征,较低的流量有利于土著特征.
增加的水停留时间导致DOM显著转变为本土特征.
没有发现水产养殖业务对水库DOM属性的可检测影响.

结论:

储DOM的组成受到输入和停留时间的强烈影响,而不仅仅是度.
自主DOM,有利于更长的居住时间,对饮用水处理提出了挑战.
监测DOM成分对于管理水库饮用水质量至关重要.
了解DOM动态有助于预测气候变化对息地和污染物运输的影响.

关键词:

本土输入的本土输入.溶解的有机碳溶解的有机碳溶解的有机气是一种有机气.纵向区分概念纵向区分概念河流水库的水库水的停留时间.

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