10th WWF Bali, Indonesia Proposes Implementation of Watershed Management Policies for Bali Disaster Mitigation
Bali – The Indonesian government proposed implementing a watershed management planning policy (DAS) or Zero Delta Q at the 10th World Water Forum (WWF) in Bali.
This was conveyed by the Director General of Water Resources of the Ministry of Public Works and Public Housing (PUPR) Bob Arthur Lombogia when met in Bali.
“This policy is a solution to flood control during the 10th WWF political process in Nusa Dua, Bali,” said Bob.
Bob added that disaster management and mitigation, especially floods in Indonesia, requires harmony between structural controls.
“If most or all of Indonesia follows this principle, then we will have lots of water storage places. “In this way, our vision in disaster mitigation and flood control can be realized,” he said.
Based on Government Regulation Number 13 of 2017, the Zero Delta Q policy refers to the provisions. In this case, it is mandatory that no buildings should increase the flow of water into the drainage system or river flow.
“This policy is a prerequisite for obtaining various land use permits, such as Building Construction Permits (IMB) in a watershed. “Central and regional government support is very necessary, including the use of land in the watershed for agriculture and other community activities,” he explained.
Bob said that flood mitigation requires a structural strategy in managing water behavior for disaster mitigation. This includes building water reservoirs such as dams, ponds, reservoirs, absorption wells, etc.
“Apart from that, steps such as increasing river capacity, diverting river water, increasing river flow speed. “Then, controlling sedimentation, regulating the drainage system, and preventing sea water from flowing onto land can also be taken to overcome this problem,” said Bob.
Real examples of water management and flood mitigation infrastructure projects include the normalization of the Ciliwung River, a retention pond combined with embankments in Cilincing, North Jakarta, and the Ancol Sentiong pump.
The 2023 World Risk Report places Indonesia in second place as the country most vulnerable to disasters, with a World Risk Index (WRI) of 43.50. The assessment is based on exposure to disasters due to non-climate resilient infrastructure and vulnerability due to inadequate disaster risk reduction management.
Meanwhile, data from the National Disaster Management Agency (BNPB) shows that the number of flood events has increased from 2019 to 2021. Even though the El Niño phenomenon has occurred which has caused an increase in rainfall since 2022, the number of these events has decreased.
This shows the success of flood disaster mitigation efforts through structural strategies such as building flood control infrastructure. “Indonesia wants its experience and success in mitigating disasters to be spread to the international world through the 10th World Water Forum in Bali,” concluded Bob.
