Water security of river basins in West Java

Abstract

West Jawa is a very important province in Indonesia. There are six river basins in West Jawa, namely: Ciliwung-Cisadane, Citarum, Cimanuk-Cisanggarung, Cisadea-Cibareno, Ciwulan-Cilaki, and Citanduy. The capital city of Jakarta is in the Ciliwung-Cisadane River basin, but the public water supply is supplied mostly from the Citarum River basin, which has three hydropower reservoirs and irrigates 240,000 hectares of rice field. Water security in West Jawa plays an important part in the sustainable development of the nation. This paper formulates and computes the water security for river basins in West Jawa. The method of constructing water security dimension is adapted from the Asian Water Development Outlook, having five dimensions of 1) household water security; 2) economic water security; 3) urban water security; 4) environmental water security; and 5) resilience to water-related disasters. At the river basin level, the water security indices are designed to be effective, simple, widely available, having no ambiguity, and directly related to the progress of infrastructure development. The water security results are presented as a radar diagram, and spatially in the thematic map. It is concluded that the overall water security score in West Java is “capable” (score of 3). The weakest security is Ciliwung-Cisadane and Citarum as “engaged” (score of 2). Both river basins are suffering from “hazardous” environmental water security.

Spatial-Temporal Changes in Water Supply and Demand in the Citarum Watershed, West Java, Indonesia Using a Geospatial Approach

“…Meanwhile, Ciliwung Cisadane and Citarum were "engaged" (score 2). Both watersheds suffer from "dangerous" environmental water security because of the shortage of water allocated for environmental purposes [80]. Juwana's research (2020) on the water sustainability index shows that all conditions of water resources in the CW are considered poor [81].…”

Field survey of seawater reverse osmosis (SWRO) usage for overcoming water scarcity on small islands in Indonesia

“…[14,15] However, there are few comprehensive studies on the state of water resources on very small islands, [16][17][18] particularly in Indonesia, where governments tend to focus efforts on larger islands such as Java. [19][20][21][22] Indonesia is committed to achieving SDG 6 of the 2030 Agenda for Sustainable Development, which is to ensure universal access to safe drinking water and sanitation. The SDG targets have also been incorporated into the national targets in the 2020-2024 Rencana Pembangunan Jangka Menengah Nasional (National Medium-Term Development This manuscript is a preprint and has not been peer reviewed.…”