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一个改进的合水量-质量-生态模型,将白天循环作为影响藻类繁殖和大型河流应用的关键因素

Xin Liu¹, Wanshun Zhang², Yue Wang¹

¹School of Resource and Environmental Sciences, Wuhan University, Wuhan, 430079, China.

Journal of environmental management

|February 15, 2025

概括

了解白天藻类动态是预测河流开花的关键. 这项研究开发了一个模型,显示每天的藻类生长和衰减模式是由光,氨等营养物质和天气驱动的.

科学领域:

环境科学环境科学
河流生态河流生态
水质管理水质管理

背景情况:

藻类生长和减少的日间波动对于理解和预测大型河流系统中的藻类开花至关重要.
准确的预测需要捕捉白天循环对藻类动态的影响的模型.

研究的目的:

为了研究藻类繁殖中日间变化的驱动因素.
开发和验证一个改进的合水量-质量-生态模型,该模型包含了白天循环.
揭示白天循环对藻类生长和衰退过程的综合影响.

主要方法:

对2022年2月至3月中下汉江河环境监测数据的分析,中国.
开发了一种改进的合模型,具有新的光效方程和高分辨率的每小时数据集成.
模型校准和验证使用甲基 (Chla) 度在Zongguan截面.

主要成果:

该模型成功模拟了Chla度的白天波动,其中有一个早晨的最小值和下午的峰值 (R2 > 0.70,RMSE < 0.010).
白天模式是由气象因素和营养相互作用驱动的.
氨 (NH3-N) 被确定为在开花期间的主要限制营养素.

结论:

这项研究增强了对河流藻类生长和衰退机制的理解.
开发的模型为管理和缓解藻类繁殖提供了一个科学工具.
纳入白天周期对于准确的河流花预测和管理至关重要.

关键词:

藻类的开花藻类的开花综合效应的结合效应.结合水量质生态模型的生态模型.白天波动的波动是每天的波动.中下汉江河河流河流

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