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Indonesia Calls for Sustainable Water on World Lakes Day

Indonesia has initiated efforts to ensure the sustainability of lake ecosystems, recognizing their critical importance. Through Presidential Regulation No. 60/2021, the government has launched a program to preserve the ecosystems of 15 priority lakes.

Dwi Rachmawati

27 Mei 2024 - 19.47
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Indonesia Calls for Sustainable Water on World Lakes Day

Lake Batur in Kintamani, Bangli Regency, is the largest lake in Bali. This lake supplies water to six districts in Bali./Bisnis

Bisnis, JAKARTA - More than 80 countries have agreed upon World Lakes Day, following an initiative by Indonesia at the 10th World Water Forum in Bali. Minister of Public Works and Housing (PUPR) Basuki Hadimuljono emphasized that lakes are a crucial source of water supply for human life, providing significant social and economic benefits.

As the host of the 10th World Water Forum, Basuki proposed the establishment of World Lakes Day to the United Nations (UN) to serve as a momentum for all parties to strive for a sustainable lake ecosystem. Many natural lakes are experiencing degradation due to climate change and human activities. "This is the purpose of commemorating World Lakes Day," said Basuki at the Bali Nusa Dua Convention Center on Tuesday (21/5/2024).

Indonesia has initiated efforts to ensure the sustainability of lake ecosystems, recognizing their critical importance. Through Presidential Regulation No. 60/2021, the government has launched a program to preserve the ecosystems of 15 priority lakes. These lakes include Toba, Singkarak, Maninjau, Kerinci, Rawadanau, Rawapening, Sentarum, the Mahakam Cascade (Semayang, Melintang, Jeumpang), Limboto, Tondano, Poso, Matano, Tempe, Batur, and Sentani.

Director of Inland Water and Mangrove Rehabilitation at the Ministry of Environment and Forestry (KLHK) Inge Retnowati stated that Indonesia boasts more than 2,000 lakes. The selection of the 15 priority lakes was based on their critical conditions and the high demand for their water resources.

"Managing lakes, like other freshwater ecosystems, is challenging due to the immense pressure they face. Numerous actors and factors influence the condition of these lakes," Inge explained.

Water pollution, sedimentation, and decreased biodiversity due to eutrophication are prevalent issues in many lakes. One of the priority lakes that needs urgent conservation efforts is Lake Batur in Bali, as emphasized by Inge.

Lake Batur is a crater lake in Kintamani, Bangli Regency in Bali, Sunday (27/5). Lake Batur is one of the lakes with threatened status/Bisnis-Adam Rumansyah


She explained that threats to lake ecosystems can originate from water catchment areas and activities within the water bodies themselves. In water catchment areas, pollution is commonly caused by household and agricultural waste, as well as soil erosion leading to sedimentation. Within water bodies, pollution often results from fishing activities, such as pond net.

 

Sustainable Lake Management

Inge noted that controlling human activities around lakes is essential to mitigate the threat of pollutants that risk damaging the ecosystem. She pointed that fishing in lake and agriculture around lakes must be managed sustainably and in a green manner.

Inge explained that waste from these activities should not exceed the lake's capacity to absorb pollutants. Therefore, collaboration across sectors is crucial. To achieve a sustainable lake ecosystem, a shared vision is required from the government, business actors, and the local community.

"Lake Batur is one of the areas where we must intensify efforts to control water pollution. This doesn't mean we can't use the lake, but there is an optimal way to do so. A healthy lake equates to a prosperous community," said Inge.

Environmental expert from Universitas Diponegoro Sudharto Hadi supports Indonesia's proposal for World Lakes Day at the 10th World Water Forum, considering it a great idea.

Lake Batur is a crater lake in Kintamani, Bangli Regency in Bali, Sunday (27/5). Lake Batur is one of the lakes with threatened status/Bisnis-Adam Rumansyah

"The World Lakes Day can serve as a reminder to all parties that our lakes are in critical condition and require comprehensive protection and management," said Sudharto when contacted on Monday (27/5/2024). 

Echoing Inge's concerns, Sudharto acknowledged that the condition of lakes in Indonesia is generally critical, facing issues such as pollution, silting, algae blooms (water hyacinth), and drought.

He further pointed that addressing pollutant sources in lakes should not be approached piecemeal. This implies that controlling water pollution in lakes must be effectively managed at the sources of pollution, both upstream and within the water body. For instance, in addressing the shallowing of lakes, Sudharto highlighted the necessity of regulating land conversion along the lake perimeters and upstream areas.

"Lake management needs to be comprehensive and integrated, spanning from upstream to downstream," Sudharto emphasized.

Cek Berita dan Artikel yang lain di Google News dan WA Channel
Editor: Rayful Mudassir

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