Abstract: For adapting to urban modern agriculture service needs and promoting efficiency of farming weather forecast, Beijing urban modern farming weather forecast service system was developed by IDL language, Flex added Java, ArcGIS drawing technical and information-net technology and the system was applied in Beijing area. The study results showed that the system was featured by urban modern agriculture service. It included hundreds of farming activities of 12 species of main field crops, featured fruit trees and establishment crops which embodied professional and selective service. The system adopted index decision method and farming weather index model for forecast of suitable grade of meteorological conditions for various farming activities. And it could predict daily in the next 1-7 days with spatial resolution of town unit and 3 kilometers grid which reflected the fine service of urban modern agriculture. The system was used by provincial and country level operators. It was designed with separation strategy of data management and accessing application based on B/S frame and it had such functions as data analysis, index database management, graphic production, prediction calibration, user distribution and result exhibition with GIS spatial distribution. The system significantly increased objective and automatic levels and product quality of farming weather forecast service. It could provide some references for specialization and fine in domestic farming weather forecast technology which were development directions in future.

Key words: Urban, Farming weather, Forecast system, B/S frame, Specialization, Fine, Beijing