在中国东南部的明江河下游,的组成和与其他营养素的固态比率
Jia-Ni Liu1,2,3, Shui-Jing Zhai1,2,3, Si-Ting Qiu3
1Institute of Geography, Fujian Normal University, Fuzhou 350117, China.
Ying yong sheng tai xue bao = The journal of applied ecology
|September 8, 2023
概括
人类活动导致明江河的营养物质负载失衡,影响生态系统. (Si) 和营养物质比率显示出局限性,随着碳,和负载的增加,可能会加剧肥胖化.
科学领域:
- 环境科学 环境科学
- 河流和沿海生态系统
- 营养物质的生物地质化学
背景情况:
- 河流给沿海生态系统带来不平衡的营养负载,这是由人类活动驱动的,导致了肥胖化.
- 明江河受到人类活动的重大影响,需要了解其营养动态.
研究的目的:
- 为了研究碳,,和的营养运输比率在明江河的季节性变化.
- 分析这些营养负载和比例对河流和沿海生态系统健康的影响.
主要方法:
- 从2019年7月到2020年7月,在明江河下游进行季节性地表水采样.
- 测量溶解 (DSi),石质 (LSi) 和生物 (BSi) 的度.
- 分析营养素的固体测量比率和每年运送到海洋的营养物质负载.
主要成果:
- 年平均度:DSi (5.30毫克·L-1),LSi (4.58毫克·L-1),BSI (2.37毫克·L-1),具有显著的季节性变化.
- 软度比表示碳或限制,没有或限制.
- 碳,和负载的增加趋势,而dsi和bsi负载显示下降趋势.
结论:
- 明江河将大量的DSI和BSI运送到海洋,尽管这些负载正在减少.
- 碳,和负载的增加表明,下游生态系统中肥化风险越来越大.
- 了解营养物质的比例为管理化和恢复明江河口和相邻海洋水域的生态平衡提供了基础.
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