通过使用 QUAL2kw 模型评估排水质量和营养负载管理场景
Seyedeh Razieh Shabestani Abyaz1, Jamal Mohammadvali Samani2, Maryam Navabian3
1Department of Water and Management Engineering, Tarbiat Modares University, Tehran, Iran.
Environmental monitoring and assessment
|December 26, 2024
概括
减少肥料的使用比降低排水道中营养污染的水压更有效. 这项研究使用了QUAL2kw模型来评估污染物负载,并测试改善水质的减少场景.
科学领域:
- 环境科学 环境科学
- 水资源管理 水资源管理
- 生态系统健康 生态系统健康
背景情况:
- 废水和废水的检查对于识别污染源和制定减缓策略至关重要.
- 像安扎利湿地这样的敏感生态系统附近的排水道需要仔细监测以防止污染.
- 在数据有限的环境中,QUAL2kw模型是评估水质的宝贵工具.
研究的目的:
- 用QUAL2kw模型识别,评估和预测排水道中的污染物负载.
- 用收集的数据对QUAL2kw模型进行校准和验证.
- 在关键时期模拟污染物水平并评估减缓情景.
主要方法:
- 使用 QUAL2kw 水质模型进行模拟和预测.
- 使用2017年数据对模型进行校准和验证,大多数参数NRMSE<20%.
- 在2021年大米生长期 (四月至六月) 进行实地考察和采样,以进行模型模拟.
主要成果:
- 该模型显示了EC和氨的良好模拟,但对于酸盐和无机需要改进.
- 2021年5月被确定为最关键的月份,酸盐,和酸盐水平达到峰值.
- 减少肥料的应用导致污染物排放减少了9-27%;而水应激的影响最小 (<1%).
结论:
- 与水应激相比,减少肥料的应用是一种更有效的策略,用于减轻与水应激相比,运河流出的营养负载.
- QUAL2kw模型适用于评估排水道的水质,特别是在数据稀缺的地区.
- 有针对性的干预措施,比如减少施肥,可以有效地提高水资源质量.
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