| The paper is based on the analysis and research of a large number of literature. By combining with the related theory on site quality evaluation and plantation management, integratedly applying of model parsing techniques and software development technology, the plantation site condition evaluation system is designed and developed.The technology of using binary search algorithm to quickly determine the site index and site level has been discussed in this paper. The method and technology of using stand average tree height models to evaluate site quality has been proposed in the absence of site index tables or site level tables. The principle and process of using bisected distance algorithm on the method of stand average tree height model has been elaborated in detail. By designing the forest growth model database and realizing model analytical algorithm, the system is suitable for various kinds of models, which means the system is universal. The two function modules named site quality evaluation and harvest forecast has been designed and developed, which made the system can according to the results of site quality evaluation, using the stand growth models to predict forest growth and harvest in the future.This system is applied to evaluate site quality and forecast stand growth and harvest for foresters and basic forestry departments, and provide auxiliary decision for plantation management. |
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