Kajian Penentuan Garis Sempadan Danau Anggi Giji Di Kabupaten Pegunungan Arfak

Abstract

Lake Anggi Giji is a lake that is still classified as natural with lakeside conditions in the form of plantations, settlements, and public facilities, so the opportunity for prevention to support the preservation and conservation of natural resources is still very large. One of the efforts to prevent this is by establishing a lake borderline. The government through the Ministry of Public Works and Public Housing regulates spatial planning to preserve the function and limit the occupancy of land around the lake by setting boundaries based on floodwater levels that have occurred. Communities around the lake also have customary laws regarding spatial planning around Lake Anggi Giji to maintain the utilization and use of an area. The data that has been obtained is in the form of contours and lake depths that can help determine the capacity of the water volume on each contour line. The elevation and boundary of the lake are obtained based on the empirical history of lake water level rise and also calculated by floodrouting. After getting the flood water level elevation, then an area with a distance of 50 meters from the edge of the flood water level is determined as the lake border area. The flood water level of the Anggi Giji lake is at 1,940.00 masl with an area of 2,303.61 ha. The determination of the lake border is expected to be able to maintain the existence of the lake by setting policies between all policymakers.