IMPACTS OF LAND USE ON QUANTITY AND QUALITY OF URBAN RUNOFF (HERZLIYA AND RA'ANANA CASE STUDY)

摘要

This study presents an analysis of the quantity and quality of urban runoff from various land uses by remote-sensing and GIS technology coupled with hydrological and chemical monitoring. The study areas were located in the cities of Herzliya and Ra'anana, in Israel's coastal plain, where extensive urbanization has taken place over the last 30 years. Different image-processing methodologies were developed to establish a relationship between the land-use maps and field measurements of runoff quality and quantity. The advantages of the abovementioned remote-sensing means, used separately and together, were analyzed for the generation of suitable maps for decision-makers from the research area. The obtained land-use maps provide an understanding of the influence of surface-cover information on facilitated analysis of runoff-land cover relationships and can serve as a tool in other urban environments.