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沉浸的巨型植物和改型土矿对沉积物酶活性的结合作用:来自中宇宙研究的证据

Chenxu Zhao¹, Yuling Liu¹, Zixuan Yan¹

¹State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi, 710048, China.

|August 3, 2024

概括

兰改性土 (LMB) 和水下巨型植物 (SM) 增强湖泊营养循环和P去除. 沉积物酶活性是关键的,由酸 (NO3-N) 等因素驱动.

科学领域:

环境科学环境科学
生态生态学生态生态学
临界技术临界技术

背景情况:

化管理通常使用兰改性土 (LMB) 和浸泡的巨型植物 (SM) 来去除 (P).
缺乏在LMB和SM处理期间在水-沉积物界面对营养素和沉积物酶动态的系统评估.
了解这些系统中酶活性的非生物驱动因素仍然不完整.

研究的目的:

调查LMB和SM联合处理对水生环境条件的影响.
量化不同LMB比率和SM物种对沉积物酶活动的影响.
为了确定影响缩管理期间水沉积界面酶活性的关键因素.

主要方法:

实验应用不同LMB比率 (0-30%) 与三种SM物种 (Vallisneria natans,Potamogeton lucens,Hydrilla verticillate) 结合使用.
监测覆盖水和沉积物中的营养度.
使用部分最小平方结构方程建模 (PLS-SEM) 测量沉积物酶活性和分析.

主要成果:

结合SM和LMB有效地降低了水面上的营养度.
沉积物酶活性增加, (N) 循环过程得到增强.
PLS-SEM表明,沉积物参数,特别是酸盐- (NO3-N),显著影响了酶活性.

结论:

结合LMB和SM处理,在水沉积物界面上促进营养循环.
这种方法通过降低营养物质负载并促进沉积物的生物活动,有效地管理湖泊缩.
沉积物质,特别是NO3-N,是这些地球工程生态系统中酶功能的关键调节者.

关键词:

用兰修饰的本托尼特.部分最小平方结构方程模型沉积物酶是一种沉积物酶.沉积物的特性沉积物的特性潜水中的巨生物.

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