An integrated approach to flood damage mitigation of flood plains

摘要

Flood damage mitigation of flood plains is a very complex problem because it is greatly associated with a considerable variety of natural, technical, economic and social factors. In this paper the fundamental subjects treated in the damage mitigation study are discussed. An integrated approach including damage risk assessment and damage mitigation policy analysis is presented. After that, a probability model and a flood routing model, which is developed for flood frequency and flooding feature analyses, respectively, are developed. Based on the detailed information obtained by the two models, two kinds of decision making models for safety construction planning and for instructing land use are proposed. At last, the utility of these models is demonstrated by applying them in the Dujiatai flood diversion and storage basin to the Hanjiang River.