Tenth International Conference on The Constructed Environment

Abstract

This paper discusses the land cover changes in urban areas through Kata watershed, Phuket, Thailand. It examines the dynamic process of land cover changes and their hydrological effects by comparing past-to-present impacts from land cover change during the last thirty years by collecting field survey data and analyzing two aerial photographs from two periods — 1987 and 2016 — to create land cover maps. The study aims to quantify the land cover changes and its effect on hydrological characteristic using GIS and WIN-TR 55 to identify and estimation on the watershed hydrological characteristic. The research suggests using integrative knowledge of landscape ecology into landscape architectural design and planning in the current context to mitigate the impacts of surface runoff. The results show that in the past thirty years, the increasing of impermeable surface increase runoff and peak flow. The increasing of the wooded area generated runoff and peak flow less than green open space, and also decrease that chance that discharge would overflow from the stream.