Sediment Classification using Envirometric Technique: A Study Case in Pahang River, Malaysia

Abstract

Sedimentation is a main river problem in Malaysia. Particle size sediments analysis the river provides useful information to evaluate the rate and pattern of erosion, transportation and deposition at a time. The sediments sizes are classified according to sand, silt and clay. This study discusses about the results of sedimentation analysis at the Pahang River from 3 until 6 June 2015. 13 sampling stations were selected. The parameters used in this study are based on grain size distribution (g). Total of different sizes of material classifications were calculated using Phi scale (o) in older to statistically calculate their mean (M), standard deviation (D) and skewness (S). In this study, envirometrics technique were used to analyzed the classify parameter of this sediments. The classify results for each parameters mean, skewness and standard deviation has dominated by three main class like coarse sand, medium sand and fine sand size. Analysis of particle size sediment (M) shows the middle, right and left bank river is dominated by fine grain size with the phi 2 to phi 3. The uniformity of sediment or standard deviation (D) on the study ISSN 1394 2506 Ata et al: KLASIFIKASI SEDIMEN MENGGUNAKAN TEKNIK ENVIROMETRIK: SATU KAJIAN KES DI SUNGAI PAHANG, MALAYSIA 1172 areas has a worst with the fine grain sand with the phi 1 to phi 2. For the skewness (S), sediment size in study areas is coarse and very coarse size with phi -0.1 to phi -0.3 and phi -0.3 to phi -1. Therefore, Pahang River areas is an easily to change as a geomorphology landscape that are easily eroded by rain and change of the discharge rate.