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淡水和盐水地下水营养输入量及其对人类影响海湾营养预算的影响

Xueqing Yu¹, Jianan Liu², Xiaogang Chen³

¹State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, China.

Marine pollution bulletin

|January 11, 2024

概括

海底地下水排放 (SGD) 是中国三门湾的主要营养来源. 管理废水和SGD对于海湾健康至关重要.

科学领域:

沿海地质化学沿海地质化学
海洋营养循环的海洋营养循环.
环境科学环境科学

背景情况:

海底地下水排放 (SGD) 是沿海地区重要的,但经常被忽视的营养途径.
人类在海湾中的活动可能导致富含营养的SGD,影响水质.
中国的桑门湾经历了大量的人类影响,需要对营养预算进行评估.

研究的目的:

调查新鲜和盐酸SGD对圣门湾营养预算的影响.
量化SGD对人类影响海湾营养投入的贡献.
确定关键的营养来源,并为生态管理策略提供信息.

主要方法:

使用224Ra质量平衡模型估计总SGD流量.
采用水-盐质量平衡模型来区分新鲜和盐类SGD贡献.
分析了来自各种来源的营养流 (DIN,DIP),包括SGD和人为投入.

主要成果:

在三门湾的总SGD流量估计为 (1.1 ± 0.1) × 10^8 m3 d-1.1.
新增的SGD约占总SGD流量的9.0%.
SGD是主要的营养来源,贡献了53.9%的溶解无机 (DIN) 和11.9%的溶解无机 (DIP).

结论:

新鲜SGD是桑门湾的重要淡水和营养 (DIP) 贡献者.
总体而言,SGD是DIN的主要来源,也是海湾DIP的重要来源.
对海洋养殖,废水排放和SGD的有效管理对于圣门湾的生态健康至关重要.

关键词:

欧洲化是什么意思?新鲜的海底地下水排放.人类活动人类活动营养物流是营养物流的组成部分.辐射辐射辐射辐射辐射

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