悬浮维持了溶解贫湖中的藻类繁殖
Zuxue Jin1, Peng Liao1, Deb P Jaisi2
1State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
Water research
|June 1, 2023
概括
悬浮颗粒物 (SPM) 为淡水生态系统中藻类繁殖提供燃料. 与SPM结合的是生物可用的,即使溶解稀少,也能维持开花.
科学领域:
- 环境化学环境化学
- 临界技术 临界技术
- 生物地质化学生物地质化学
背景情况:
- 藻类繁殖是一个全球淡水问题,通常是由的可用性驱动的.
- 了解物种和循环对于控制开花范围至关重要.
研究的目的:
- 描述中国埃尔海湖的物种化和生物地球化学循环.
- 确定主要的生物可用来源,为藻类生长提供燃料.
主要方法:
- 解决方案31P核磁共振 (NMR) 光谱学
- 顺序的提取技术 顺序的提取技术
- 酶性水解分析试验
- 16S rRNA基因测序用于微生物分析.
主要成果:
- 悬浮颗粒物 (SPM) 含有无机 (Pi) 和有机 (Po) 的含量明显高于沉积物.
- 在SPM和沉积物中,大量的Po是可水解的,这表明生物可用性.
- 在SPM中,二-P/单-P的比率因季节性变化而变化,反映了重矿化率.
- 由SPM衍生的Pi和Po被确定为藻类的主要生物可用来源.
结论:
- SPM是一个重要的储库,可以维持藻类的繁荣.
- 藻类和细菌活动驱动SPM的再调动.
- 在SPM中控制输入和循环是管理藻类繁殖的关键.
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