揭示水样采集偏差:贝叶斯的准确性方法在边缘场监测的准确性
Ansley J Brown1, Emmanuel Deleon1, Erik Wardle1
1Department of Soil and Crop Sciences, Colorado State University, Fort Collins, Colorado, USA.
Journal of environmental quality
|February 6, 2026
概括
现场边缘采样水方法显示出对营养和沉积物分析的良好一致性. 仔细考虑采样器摄取设计和协议对于准确的水质数据可比性至关重要.
科学领域:
- 农业用水质量 农业用水质量
- 环境监测 环境监测
- 营养物质运输 营养物质运输
背景情况:
- 现场边缘 (EoF) 采样对于了解农业的营养流量至关重要.
- 水质研究的准确解释受到各种采样方法的挑战.
- 非点源营养命运和环境影响需要可靠的监测.
研究的目的:
- 评估和比较四种EoF流水采样技术.
- 评估不同采样方法的水质数据的可比性.
- 确定影响EoF监测数据准确性的因素.
主要方法:
- 与自动化 (ISCO),物联网,每小时抓取和间歇性抓取采样器进行比较.
- 测量了九个水质参数 (N,P,TSS,TDS,pH,导电性).
- 使用贝叶斯模型分析了灌和降雨下水事件的数据.
主要成果:
- 大多数样本显示出对水质分析物的强烈对齐.
- 由于吸收诱导的沉积物,ISCO采样器增加了TSS和TP.
- 除了最初的ISCO样本恢复了协议,突出了协议的重要性.
结论:
- 不同的EoF采样方法可以整合用于长期监测.
- 排水管的设计,吸入口的位置和清洗协议显著影响数据的可比性.
- 选择性数据排除可能是必要的,以确保方法一致性.
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