Study on Suspicious Breeding Environment of Oncomelania in Three Gorges Reservoir Area

摘要

In this paper, we developed method to find the suspicious breeding region of oncomelania in Three Gorges reservoir area based on GIS. Major data used in this study include meteorological data of 56 stations during 1971-2000, hydrological data of the main channel and tributaries of Changjiang River, and ETM remote sensing data. With the evaluation of refined meteorological element distribution maps, water-level-fluctuation zone, vegetation, and other factors, we found the suspicious breeding region of oncomelania in Three Gorges reservoir area, and selected two focus regions of qukou in Kaixian and dachang in Wushan for further monitoring.