The Effect of Climate Changes on Sediment Concentration in the Saddang Irrigation Area

Abstract

Abstract Saddang irrigation area does not get water evenly this is due to, among other things, the condition of the network experiencing a decrease in capacity. The decrease in capacity was caused by sedimentation at the bottom of the channel and the condition of the channel lining was damaged, resulting in seepage/leakage and the building and sluice gates were not functioning properly. This study aims to analyze seasonal changes to sediment concentrations in the main channel Rappang Pinrang Regency. This research was conducted in the Rappang main channel, Pinrang Regency with the coordinates of 3°41′44.93″S 119°40′43.12″E. Data collection was divided into 3 research locations, namely the upstream, middle and downstream of the Rappang main channel with a distance of ± 33 km from upstream to downstream. Sediment sample testing was carried out at the Civil Engineering Soil Mechanics Laboratory, Hasanuddin University, Makassar. Data collection in the form of flow velocity, suspended load and flow rate was carried out in the upstream, middle and downstream areas of the Rappang main channel. The expected result of this study is to find the value of the effect of seasonal changes on sediment concentration in the Rappang Pinrang Regency.

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