气候变化加剧了藻生物量在中国大的太湖 (Taihu) 中的复苏
Ting Pan1, Chixiao Cui2, Boqiang Qin3
1College of Hydrology and Water Resources, Hohai University, 1 Xikang Road, Nanjing 210098, China.
The Science of the total environment
|March 25, 2024
概括
气候变化显著推动了中国太湖的藻类繁殖,尽管有恢复工作. 水温上升和酸盐含量增加是关键因素,需要更严格的营养物质排放控制.
科学领域:
- 环境科学 环境科学
- 临界技术 临界技术
- 气候变化的影响 气候变化的影响
背景情况:
- 植物浮游生物的繁荣对湖泊的恢复构成了挑战,特别是在大型浅湖中.
- 了解藻类生物质复苏的驱动因素对于有效的水质管理至关重要.
- 中国的太湖 (Taihu Lake) 是一个过度缩的湖泊,尽管进行了长期的修复工作,但其改善程度有限.
研究的目的:
- 量化气候变化和营养度对太湖植物浮游生物群复苏的贡献.
- 评估变化的环境因素对2014年后藻类生长的影响.
- 通过确定关键的贡献因素,为未来的湖泊恢复战略提供信息.
主要方法:
- 基于过程的植物浮游生物动态模型的开发.
- 分析环境数据,包括水温,光合作用活性辐射 (PAR),总悬浮固体 (TSS),溶解无机 (DIN) 和酸盐.
- 量化每个因素对藻类生物质复苏的百分比贡献.
主要成果:
- 在2015-2020年期间,平均水温和酸盐水平增加,而PAR,TSS和DIN水平与2008-2014年相比下降.
- 水温贡献了58.7%和酸盐贡献了42.7%的藻类生物质复苏.
- 气候变化因素 (WT,PAR,TSS) 总体贡献了64.9%的植物浮游生物质复苏.
结论:
- 气候变化是泰湖植物浮游生物质复苏的重要驱动因素.
- 营养管理策略必须考虑并减轻气候变化的影响.
- 有效控制营养物质排放对于抵消气候变化对优食性湖泊的影响至关重要.
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