建筑湿地的植物种群结构及其用于净水的能力
Junshuang Yu1,2, Ling Xian1, Fan Liu1
1Core Botanical Gardens/Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
Plants (Basel, Switzerland)
|January 25, 2025
概括
具有多种植物物种的建筑湿地 (CWs) 显示出稳定的水净化,尽管物种随着时间的推移而发生变化. 专注于已建立的物种可以确保在这些关键的生态系统中持续的废水处理效率.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 水处理工程水处理工程
背景情况:
- 在建筑湿地 (CWs) 中的植物社区结构可以随着时间的推移而波动.
- 这些时间变化的对水质的影响仍然不完全理解.
- 调查这些动态对于优化CW性能至关重要.
研究的目的:
- 检查多个物种CW中的植物种群结构在一年内发生的变化.
- 评估这些结构变化的对废水处理效率的影响.
- 确定影响植物群落和CWs水质的关键因素.
主要方法:
- 在波尔德系统中建立了一个多物种构造湿地.
- 在12个月内监测植物种群结构和多样性指数 (例如,香农指数).
- 分析了关键的水质参数:总 (TP),总 (TN),化学氧气需求 (COD) 和a (Chla).
- 使用冗余分析 (RDA) 来将环境变量与物种群体组成相关联.
主要成果:
- 总物种丰富度下降,但在营养吸收中发挥功能作用的20个核心物种仍然存在.
- 功能组件保持一致,由稳定的香农指数值表明.
- 观察到TP (57%),TN (50%),COD (37%) 和Chla (75%) 的显著减少.
- 导电性是唯一影响物种群体结构的环境变量.
结论:
- 根深蒂固的植物物种是保持多种CW中持续净化水的关键.
- 专注于核心功能组的弹性,可以确保持续的废水处理.
- 碳水化合物设计应优先考虑重要的植物群落的稳定性,以实现长期的有效性.
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