Assessment of water balance potential for effective water management in the Kok River Basin Chiang Rai Province

Abstract

This research objective to assess land use and water use from land use and assess water balance of the Kok River. Chiang Rai Province area. Based on field survey data and using geographic information systems

The research results found that the Kok River Basin in Chiang Rai Province has an area of 1,910.46 square kilometers or 1,194,027.31 rai. The land use and land cover characteristics are mostly deciduous forests, paddy fields, corn fields, Urban and buildings areas, and Para rubber plantations, with an area of 340,043.68 rai, 277,597.56 rai, 128,878.47 rai, 122,426.93 rai, and 76,138.61 rai, respectively. And the amount of water found that the Kok River area in Chiang Rai Province has 14,132,812.33 square meters, or 8,833.01 rai, has an average water surface depth of 3.30 meters. The spatial characteristics of the river have a capacity to store water at 46,638,280.67 cubic meters and water use was 1,833,880.11 cubic meters. This results in the amount of water used being lower than the spatial capacity of the Kok River. However, This is only an assessment of water use from land use within 2 kilometers from the river.