Abstract
This study discusses the settlements location and land use of the Vientiane plain in relation to Geo-environment and seasonal water level change of the rivers. The plain is located on the northernmost part of the Korat plateau which was formed by deposition and erosion by the Mekong River, Gum River and their tributaries. The plain can be divided into four components.Seasonal water level change of the rivers and lakes are recognized on the plain. The water level of the rivers in rainy season is about 3m higher than the level in dry season. In rainy season, the flood of Gum River's tributaries occurs, and it forms the wetland on the flood plain.The settlements of Vientiane city and surrounding villages are located on the highland adjacent to the flood plain. Flood plain is mainly used as rice field throughout the year. And, emergence of lakes and marshes in rainy season allow people to engage in fisheries.
