在城市相互连接的水体中,为减轻环保变化而进行生态恢复:评估,可变性和战略
Linlin Wang1, Huaihao Shao2, Yuehua Guo3
1College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China.
Journal of environmental management
|June 21, 2024
概括
城市相互连接的水体的生态修复减少了污染,但降雨导致下游营养堆积. 营养减少和增加水流的联合战略是有效污染管理的关键.
科学领域:
- 环境科学 环境科学
- 水资源管理 水资源管理
- 城市生态城市生态学
背景情况:
- 城市相互连接的水体往往遭受低流量和弱水力学,导致污染积累和高化.
- 在城市相互连接的水系统中对安化进行的研究是有限的,特别是关于变异性和修复策略的研究.
- 综合式水系统虽然解决了流量问题,但可以加剧下游污染.
研究的目的:
- 在生态修复前后,评估一个相互连接的城市水体 (卢昆河,深) 的水质变化.
- 在这些系统中建立一个新的评估水质指数 (WQI) 的方法.
- 调查营养积累模式,并确定有效的污染管理策略.
主要方法:
- 人造湖的生态修复,包括地下改善,植被恢复和水生增量 (称为"水下森林"项目).
- 在修复前和后对水质参数 (总,总,藻类密度) 的比较分析.
- 开发和应用改进的水质指数 (WQI) 方法.
- 评估降雨对下游营养动态和藻类繁殖发生的影响.
主要成果:
- "水下森林"项目在人工湖中显著降低了总 (43.58%),总 (79.17%) 和藻类密度 (36.90%),控制了藻类繁殖.
- 降雨事件加剧了下游的营养积累,与干旱季节相比,总增加了4.56倍,氨增加了1.30倍,导致未恢复地区的开花.
- 改进的WQI有效地评估了水质,证实了互联系统下游大量的营养积累.
结论:
- 生态修复可以有效地改善相互连接的城市水体的特定部分的水质.
- 降雨加剧了相互连接系统下游地区的营养污染,需要有针对性的管理.
- 营养减少和增强水流的联合策略对于减轻下游营养积累和管理城市水体健康至关重要.
相关概念视频
Bioremediation
18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K
Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
Ecological Disturbance
17.1K
An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
17.1K
Ecological Succession
17.2K
Ecological succession is influenced by the processes of facilitation, inhibition, and toleration. Facilitation occurs when early successional species create more favorable ecological conditions for subsequent species, such as enhanced nutrient, water, or light availability. In contrast, inhibition happens when early successional species create unfavorable ecological conditions for potential successive species, such as limiting resource availability. In some cases, later successional species...
17.2K
Conservation of Mass in Moving, Nondeforming Control Volume
1.1K
Stormwater detention basins are essential in managing runoff during heavy rainfall, particularly in urban areas where impervious surfaces increase the risk of flooding. Understanding the conservation of mass in these systems allows engineers to optimize basin performance, balancing inflow, outflow, and water storage.
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
1.1K
What is an Ecosystem?
39.6K
Overview
39.6K


