Latest Issue
Study on Mechanical Structure Design for Plug-and-play Wheel Mobile Robot
Published: December 31,2023PI Controller for Velocity Controller Design based on Lumped Parameter Estimation: Simulation and Experiment
Published: December 31,2023Attitude Estimation by using Unscented Kalman Filter with Constraint State
Published: December 31,2023Characterization Study of Cambodian Natural Rubber and Clay Composites for Shock Absorption Floor Mat
Published: December 31,2023Selection of Observed Gridded Rainfall Data for different Analysis Purposes in Cambodia
Published: December 31,2023An Empirical Investigation of Gold Price Forecasting Using ARIMA Compare with LSTM Model
Published: December 31,2023Prediction of California Bearing Ratio with Soil Properties of Road Subgrade Materials in Cambodia
Published: December 31,2023Non-intrusive Load Monitoring Classification Based on Multi-Scale Electrical Appliance Load Signature
Published: December 31,2023Development of Control Framework Based on ROS Platform for a 3-Axis Gimbal
Published: December 31,2023Effects of Solvent and Time on Extraction of Bioactive Compounds from Cambodia Black Turmeric Using Ultrasound-Assisted Extraction
-
1. Faculty of Chemical and Food Engineering, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh, Cambodia
Received: July 19,2021 / Revised: Accepted: July 19,2021 / Published: December 30,2021
Accelerated soil erosion caused by water is one of the most widespread problems affecting environmental quality, agricultural productivity, and food security in many countries. These issues tend to cause more severe impacts on developing countries, especially in the tropical highland areas. Therefore, this study was conducted in the Prek Thnot Basin, a sub-catchment of the Mekong Basin in Cambodia, to (1) simulate sediment yield at the outlet by using Soil and Water Assessment Tool (SWAT); and (2) identify productive sediment yield area of the catchment. The SWAT model was selected due to the availability of data and the capability to represent the reality of hydrological and water quality processes, which is the best method to determine the answer to the study objectives. In response, the SWAT provided an actual performance in each calibration and validation process of both runoff and sediment yield. The annual soil erosion in most parts of the study area range from approximately 100 to more than 1400 tons/km2/y. This study indicated that the most erosive part of this study area covers 91.78 km2, which contributed to 1.64% of the whole watershed with a sediment yield of about 2206 tons/km2. In addition, the assessments of sediment deposition and erosion using Modified Universal Soil Loss Equation (MUSLE) indicated the annual sediment load along the flow direction of the mainstream, from the upper river to the outlet of the Prek Thnot river basin, about 0.2 million tons. As a result, the middle to the upstream of the watershed is the most sensitive to produce the sediment yield.