Conservation Analysis of Kuranji Watershed using SWAT Application

Irsyad, Fadli and Ekaputra, Eri Gas (2017) Conservation Analysis of Kuranji Watershed using SWAT Application. In: International Symposium on Soil Management for Sustainable Agriculture 2017, August 28-30, 2017, Gifu, Japan.

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Abstract

Land degradation is a major cause of high runoff compared to other factors. Changes in land use occurring in an area cause a change in the catchment area conditions and may cause changes in runoff. If runoff occurs during minor rain and infiltration of water into large soil, then water is first stored in soil that will increase ground water availability. The Kuanji watershed is one of the watersheds in Padang City with an area of 202.7 km2 and consists of 5 sub-catchments. This research was conducted on Kuranji watershed which geographically located at 100o20'31.20 "- 100o33'50.40" E and 00o55'59.88 "- 00o47'24" S. This research was conducted in March - June 2013. This study has used ArcSWAT 12 application. Initial stages in this research are data collection, SWOT analysis in Kuranji watershed, and determination of conservation area of Kuranji watershed. Results of research using ArcSWAT for Kuranji watershed were more than 3000 HRUs. The largest runoff was 84 mm with an area of 75.195 ha, and spread in four sub-districts (Pauh, Padang Utara, Nanggalo, and Koto tengah). The recommended conservation areas are Limau Manih (81.56 ha), Lambung Bukit (42.27 ha), Gunung Sarik (86.32 ha), Kuranji (60.20 ha), and Lubuk Minturun (64.45 ha).

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