对全球三种流行的河流营养物质运输模式的评估
Xinyi Jiao1, Jia Zhou1, Minpeng Hu1,2
1College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
Environmental science and pollution research international
|November 18, 2023
概括
这项研究评估了全球河流营养模型,发现全球新闻最适合较大的盆地,而IMAGE-GNM则适用于高度. 为准确的营养物质运输模拟,建议改进模型.
科学领域:
- 环境科学 环境科学
- 水文学的水文学
- 地质化学 地质化学
背景情况:
- 全球河流 (N) 和 (P) 运输模型对于理解盆地营养循环至关重要.
- 为特定的研究目标选择合适的模型可能是具有挑战性的,因为性能各不相同.
- 需要进行元分析来比较普遍存在的全球营养物质运输模型的性能和适用性.
研究的目的:
- 进行一个元分析,评估三种全球河流营养物质运输模型的性能和适用性:全球新闻,IMAGE-GNM和WorldQual.
- 根据盆地特征和营养类型,为选择最合适的模型提供指导.
- 确定模型改进的领域,以提高营养物质运输模拟的准确性.
主要方法:
- 对已公布数据的元分析,以根据R2>0.50和NSE>0.50的标准来评估模型性能.
- 对溶解有机 (DON),溶解有机 (DOP),溶解无机 (DIN),溶解无机 (DIP),总 (TN) 和总 (TP) 的模型模拟精度的评估.
- 开发一个两段线性模型,根据盆地大小,度和数据持续时间推特定模型.
主要成果:
- 全球新闻在DON和DOP方面表现令人满意,但在DIN和DIP方面表现不佳.
- IMAGE-GNM对TN和TP的准确性令人满意,特别是在欧洲盆地,并建议用于具有长期数据的高度区域.
- 在TN和TP模拟中,WorldQual表现不佳.
结论:
- 对于较大的盆地 (DIN > 2.2 × 104 km2,DIP > 3.2 × 104 km2),建议使用全球新闻.
- IMAGE-GNM最适合用于具有长期数据集和高度的盆地.
- 所有模型都需要改进,包括增强的流中营养物质保留/释放模块,解决遗留营养物质的影响对于准确的营养物质运输建模至关重要.
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