การวิเคราะห์ธรณีสัณฐานในพื้นที่น้ำท่วม อำเภอพุนพิน จังหวัดสุราษฏร์ธานี

Abstract

Flooding is a kind of hazard from a lot of water. As a result of heavy or long continuousraining for a long time, due to low of pressure atmosphere Amphoe Phunpin Chanwat Suratthani is one of effected area from low pressure atmosphere, caused widely flooding in march 2011. The flooding damaged vast asset and life. Flooding is always lack of geomorphic analysis in the area which is essential understanding nature and water characteristic of drainage basin. The data is very important for applied with other knowledges. For protect and dissolve the flooding problem in the area. Associated with topography in Amphore Phunphin Changwat Suratthani is vary of geomorphology and has 2 main rivers, Tapi river and Phum Dueng river. Hence this study is aim to study about geomorphology which is the factor of flooding and identified the real boundary knowledges flooding and some is anomalous flooding. From analysis in the study area found that most of flooding area was in floodplain of Tapi and Phum Dueng river. Which is natural flooding. The most important of flooding in this area is inappropriate land use of geomorphology and water obstruction from building. Associated with long continuous raining. Make water over flooding. And drainage system of Tapi river was changed.