Modeling approach to determine priority sub-catchment for volcanic lake restoration. Issue 1 (June 2021)

• Record Type: Journal Article
• Authors: Rustini, H A; Harsono, E; Ridwansyah, I
• Is Part Of: IOP conference series. Volume 789:Issue 1(2021)
• Publication Date: 2021-06
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/789/1/012027
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: Catchment restoration is one of important aspects taken into account when planning lake restoration. The initial step to this is identifying the location and characteristics of the problem areas for further analysis in deciding suitable restoration measures. The objective of this study is to identify and characterize priority sub-catchment to be managed in order to promote Lake Maninjau restoration by using calibrated and validated 2-dimensional multilayers hydrodynamics and water quality model. Results showed that small sub-catchments which are significantly occupied by settlements in the verge of the lake should be prioritized since they provide higher immediate nutrient which lead to eutrophication near the lakeshore area. While large sub-catchments may not cause immediate eutrophication in the lakeshore area, they must also be managed wisely to increase water quality in the much wider part of the lake.