Study And Development On Forest Growth Model Base System

Keep forest's sustainable development involves the nature, environment, ecosystem and social numerous factorses, needing a great deal of mathematics model to provide the support. This paper combines forest model,statistics,DSS and database technique etc. to develop a professional applied system-Forestry Growth Model Base System(FGMBS). By giving growth model management and maintenances, it carried out a quantitative support and assistance decision for the forest worker and researcher.This paper first studied the concept, development and application of model and forestry model. By consulting a great deal of information, it limits the concept category of the research. It sets up a frame structure according to the three-parts DSS and designs a function structure of FGMBS by studing forest and model base information.According to Software Reuse and COM technique, FGMBS integrates applied procedure and calculative software-Matlab. Ask for help the strong calculation function of Matlab, added the part of the applied procedure calculate way availably, carry out the support of the other party method database parts, economized the energy and time of the development biggest.The establishment of FGMBS carries out to manage and support to a great deal of classification of growth model, Support the dynamic state enlargement of the models and the model database, establish the new model quickly and effectively, Provide the customer interface support model from the definition to run, include the dynamic modification of the model formula, the model parameters modification, the choice data source...etc.In the development, according to the technical characteristics of COM, this system adopts Delphi7 combining together with Matlab6.5 to develop and the ADO technique to visit data base, comparing to carry out the management target of the system goodly, also providing good reference for developer to draw lessons from.