定量建模水库微藻繁殖,以应对水溶性离子和离子的流入
Ting Zhang1, Dingqiang Zhang1, Vitumbiko Mkandawire2
1College of Civil Engineering, Liaoning Technical University, Fuxin 123000, China.
Bioresource technology
|February 18, 2024
概括
酸雨成分会影响微藻的生长. 像和这样的特定离子可以抑制生长,而可溶性离子,光和pH值显著影响繁殖,可能导致藻类繁殖.
科学领域:
- 环境科学 环境科学
- 临界技术 临界技术
- 生态毒理学 生态毒理学
背景情况:
- 大气降水可以将形成酸的物质沉积到地表水中.
- 水溶性成分对微藻繁殖的影响仍然不太清楚.
研究的目的:
- 在不同的水化学条件下分析三种微藻生物指标 (Scenedesmus quadricauda,Chlorella vulgaris和Scenedesmus obliquus) 的生长特征.
- 研究可溶离子,光度和pH对微藻繁殖的影响.
- 开发一种针对降雨的微藻生长的预测模型.
主要方法:
- 在现场监测地表水质量.
- 实验室培养实验通过调整阴离子和阴离子度来模拟96种不同的水类.
- 开发和应用一个预测的微藻生长模型.
主要成果:
- 具有pH > 3.0的降雨特征是占主导地位的Ca2+,Mg2+和K+离子,以及NO3-和SO42-离子.
- Ca2+ (高达0.1毫米) 和Mg2+ (>0.5毫米) 抑制了Scenedesmus quadricauda的生长.
- 可溶性离子,光度和pH值显著影响了微藻繁殖 (p <= 0.01).
结论:
- 一种新的微藻生长模型预测,在降雨后的6天化后,细胞密度增加10.7倍.
- 这些发现有助于理解藻类繁殖动态,并有助于在区域水循环中预测它们.
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