2017 Volume 5 Issue 4 Pages 42-53
The Province of Pathumthani has played an important role in the Bangkok Metropolitan Region (BMR) in terms of its economics, industry, education, society, and culture in driving the urbanization process. However, the urban areas have been sprawling without control. Some urban areas have expanded to areas with risk of flooding. Especially, in the past 10 years, Pathumthani has suffered from more frequent and more severe floods, which might be affected by climate change. Together with inefficient climate change adaptation plans, the areas with risk of high impacts of flooding have expanded, making the urban settlements in Pathumthani face even higher impacts. The objectives of this research are to examine land use changes in order to understand the direction of urban expansion, to analyze the level of flood impact risk under climate change in Pathumthani by using Sieve Analysis and Geographic Information Systems, and to examine flood adaptation plans and the projections of urban development by using Scenario Analysis. The results show that the flood impact risk of Pathumthani has been higher under climate change, and the areas with flood impact risk have expanded, especially in the western side of Chao Phraya River which covers the majority of the areas in (1) Sam Khok District, (2) Mueang Pathum Thani District, and (3) Lat Lum Kaeo District. Moreover, the results suggest that the direction of urbanization is toward these three districts with high flood impact risk. Thus, climate change adaptation plans are essential for Pathumthani.