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在热带地区恢复城市湖泊的好处

Priyanka Jamwal¹, Laurence Carvalho^2,3, Sumita Bhattacharyya⁴

¹Centre for Environment and Development, Ashoka Trust for Research in Ecology and the Environment, Jakkur Post, Bangalore, India. priyanka.jamwal@atree.org.

Environmental monitoring and assessment

|October 11, 2023

概括

污水处理显著改善了城市热带湖水质,使渔业和娱乐活动成为可能. 虽然还没有完全恢复,但Jakkur湖比未经处理的Bellandur湖有好处,减少了污染和温室气体排放.

科学领域:

环境科学环境科学
生态生态学生态生态学
水资源管理水资源管理

背景情况:

热带城市湖泊面临着未经处理的废水造成的严重污染,这阻碍了恢复工作.
高温加剧了微生物和藻类的生长,使湖泊复苏复杂化.
发展中国家的恢复目标往往定义不佳或无法实现.

研究的目的:

为了比较废水处理和建筑湿地在恢复城市热带湖泊方面的有效性.
评估印度班加罗尔的Jakkur湖 (恢复) 和Bellandur湖 (未恢复) 的水质变化.
评估恢复对生态参数和湖泊利用潜力的影响.

主要方法:

两个城市湖泊的比较案例研究:Jakkur (处理废水和湿地) 和Bellandur (未经处理的废水).
对关键水质参数的分析:生物化学氧气需求 (BOD5),便大肠杆菌,悬浮固体总量 (TSS),总量 (TN),总量 (TP) 和叶绿素-a.
评估溶解氧水平和Secchi深度 (SD),以评估光线透率和湖泊的整体健康状况.

主要成果:

贝兰杜尔湖的水质非常差,有机污染,脱氧和甲排放很高.
在废水处理和湿地循环后,Jakkur湖显示有机污染和营养水平显著降低.
贾库尔湖支持植物浮游生物的繁荣,并改善了溶解氧气,使渔业和娱乐活动成为可能,与贝兰杜尔湖不同.

结论:

标准的废水处理和建筑湿地为恢复城市热带湖泊提供了巨大的好处.
即使是部分恢复,如在Jakkur湖,可以重新建立生态功能和支持社区使用.
需要采取进一步的措施来管理季风污染物负载,但社区参与是重建的关键里程碑.

关键词:

欧洲化是什么意思?营养素营养素营养素城市湖泊城市湖泊污水处理污水处理污水处理水的污染污染水的污染

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