[Establishment of a monitoring database of historical environments at grass - root level for schistosomiasis prevention based on Google Earth].

Objective: To establish a monitoring database of historical environments at grass-root level for schistosomiasis prevention based on Google Earth (GE), so as to improve the management efficiency of historical environments.

Methods: GE was labeled with the information about the historical environments through adding landmark, path and polygon. Meanwhile, POCO web album was used to storage the practice situation pictures of the environments, which could be imported into GE so that the environments could be monitored dynamically.

Results: There were 553 historical snail environments in Yangjian Town, Xishan District, Wuxi City and the accumulative area was 506 000 m. Among these environments, 224 (40.5%) were Class IV environments, accounting for 40.5% of accumulative area.

Conclusions: The monitoring database of historical environments based on GE at country level is established successfully and it can be used to manage the historical snail environments visually and monitor the changes dynamically.