Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan
Vol 21, No 1 (2024): March 2024

Determination of Reservoir Ecosystem Status in Cimahi City Govenrment Office

Eka Wardhani (Institut Teknologi Nasional)
Faza Kamilah Kusnadi (Institut Teknologi Nasional)
Athaya Zahrani Irmansyah (Institut Teknologi Nasional)
Dian Noor Handiani (Institut Teknologi Nasional)



Article Info

Publish Date
31 Mar 2024

Abstract

Cimahi City continues to try to repair the damaged reservoir to function optimally as a raw water reservoir. This effort requires identifying the status of the reservoir ecosystem by assessing three standard criteria: aquatic, boundary, and terrestrial quality status. Two methods were carried out: field observation and laboratory research. The field observations are observations and interviews, determining the water sampling point and water sampling, and aerial photography for mapping surveys. The parameters of chlorophyll-A, algae, total nitrogen, and total phosphate were analyzed for the laboratory research. Based on research, the status of aquatic is in the threatened-destruction category because trophic level includes hyper-eutrophic, moderately polluted water quality, low biodiversity, and loss of food webs. The quality of the boundary ecosystem is in the damaged category because >25% of the area of the boundary is a settlement, and there is the disposal of domestic waste that enters the reservoir through canals. The quality of terrestrial ecosystems is in the threatened-damaged category because the land vegetation in the water catchment area is low, and there is an average annual siltation of ≥2% of the depth of the reservoir. It was concluded that management must be carried out in the water catchment area.

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