GEO-SPATIAL FACTORS FOR WATER RESOURCE DISPARITY IN THAILAND

摘要

Social disparity in water resource accessibility is a crucial and urgent issue in all communities and regions. Many factors of this problem are population increasing, very low rainfall or heavy rainfall, water consumption, water demand for agriculture and industry sectors including the consequence of imbalanced development. The main objective is to analyze related factor and develop a conditional index of water resources contribute to the social disparity. So the component approach was applied to resolve into the main elements of physical landscape, meteorology, hydrology and social aspects. The disparity database stores geo-spatial information of the primary and secondary parameters which are adopted and weighted by experts. The factor analysis results found that the population density, rainfall intensity, water storage and water resource project, site and distance of soil erosion and also irrigation zone and system are the primary factors for assessing social disparity in water resources solution. Moreover, the conditional index from expert weighting indicates 80 % of social disparity in Thailand, the highest disparity found in 10 local communities at 5 districts of 3 provinces of the northeast part based on community prioritizing. This information has led to better understanding and operation for decision making in all levels and sectors. The result can also be applied used for water resources equalization management of economic and social demand including environmental balance in crisis community and implemented in another area afterward.