【摘要】 以ArcGIS8.1系列作为组建WebGIS数据库及进行时空分析的基本软件平台,介绍了WebGIS的工作原理、技术支持标准、体系结构和数据库建库的方法。根据稻飞虱历史资料,分别建立了空间及属性数据库,应用该数据库可以对稻飞虱种群动态进行时空分析。最后给出了广东省稻飞虱灾害预警信息系统的初步应用实例。更多还原

【Abstract】 Development of WebGIS-based warning information system of planthoppers disaster is a significant work in rice insect pest control. Based on the principle of WebGIS database, ArcGIS8. 1 was used to design and develop warning system for planthoppers in Guangdong Province, which was also used as a analytical platform to predict the spatial-temperal fluctuation of planthopper population. The principle of WebGIS, technical supporting standard, systematical structure and methods of creating database and spatial analyzing modes were described in details. A database including spatial and corresponding attribute sub-database was constructed based an history records. The warning system will provide great assistance for pest managers in spatio-temporal analysis, besides its basic database management functions such as data inputting, outputting, editing and querying. An example of WebGIS-based system was presented for planthopper management in Guangdong Provincial.更多还原