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Evaluation of Dispersive Soil Characteristics in Cambodia
Published: October 31,2026The Special Character of Angkor Sand and the Preservation of the Central Tower of Bayon Temple
Published: October 31,2026Case Studied of Fundamental of soil properties and their correlation of soil in Battambang Provinces
Published: October 31,2026Point Cloud Data from Different Measurement Methods in Road Embankments
Published: October 31,2026Basic Study on Problem Soils Encountered in Construction Works in Developing Countries
Published: October 31,2026Development of SPT and DCPT data Correlations for Foundation Design in Phnom Penh Capital City of Cambodia.
Published: October 31,2026Soil Stabilization using Cementless Geopolymer
Published: October 31,2026Development of Eco-Friendly Microplastic Removal Filter For Sea Salt Farm
Published: August 31,2026Comparison of Spatial Interpolation Methods to Map Soil Chemical Properties: A Case Study in Chrey Bak Catchment, Cambodia
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1. ITC
Academic Editor:
Received: January 22,2024 / Revised: / Accepted: January 22,2024 / Available online: June 01,2020
Assessing the characteristic of soil properties is important for various purposes, especially for agriculture. The spatial distribution mapping for soil properties in Chrey Bak Catchment can be generated by geospatial analyst (Ordinary Kriging) methods with different semivariogram models: Gaussian model, Exponential model, Pentaspherical model and Hole effect model. The objectives of this study are to: (i) compare and evaluate the most accurate interpolation method for soil properties, and (ii) generate the spatial distribution mapping for soil properties such as pH, Electrical Conductivity (EC), Total Nutrient (TN), potassium (K), Total Phosphorus (TP), Soil Organic Matter (SOM), Cation Exchange Capacity (CEC). Four indicator methods, including (Residual Sum of Squares (RSS), Root Mean Squared Error (RMSE), Mean deviation or Mean error (ME) and Average Kriging Standard Error (AKSE)) were used to evaluate the most accurate interpolation method. The log transformation chosen to estimate the direction or distribution of all parameters with the directional experimental semivariograms is 55o for all soil parameters. The nugget/sill ratio, RSS, and RMSE of Hole Effect model show the best statistical result than other models of OK interpolation method. And then, the soil properties (pH, EC, TN, K, TP, SOM, CEC) distribution mapping was plotted. These maps revealed the understanding of the soil quality in Chrey Bak Catchment.
