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A GIS based decision support system for eucalypt cultivation and management was developed. The system can help farmers make decision in planting suitability, eucalypt variety selection, planting scheme making etc. The system can also make an economic evaluation for the selected variety so that users can make decision to plant or not. The system supports two groups of users which are eucalypt farmers who cultivate eucalypt in a small scale and forest farms who cultivate eucalypt in a relatively large scale.

Meteorological conditions play an important role in agricultural practice and agricultural DSS usually takes weather data as a critical data source. A meteorological data service system was designed and implemented to provide better performance for Chinese users. Based on the service system, a web application providing online weather data retrieval and downloading was also developed. The service system was practically used in a decision support system for eucalypt management, and proved to be very feasible as an online weather data source for agricultural decision support system. Base on this service system, it is expected that agricultural researchers and decision support systems can easily obtain weather data and further improve their agricultural decision making process.