based on the experiment data of summer maize in irrigation experimental station of north west a & f university during 2001 ~ 2004, a normalized model between leaf area index ( lai ) and accumulated temperature was developed 摘要通过对连续4a夏玉米叶面积指数的研究,建立了夏玉米叶面积指数与积温之间的归一化模型。
model coding normalization conveniences model management and retrieval; model data normalization includes the model description file ( mdf ) and the operation on the mdf, which separates model description and model implementation, unifies model expression, normalizes model data and model operation, and so on; model encapsulation supports models programmed by any kind of language running on the same operation systems, and conforms them to normalization; model normalization provides the basis for efficient management, organization, operation and encapsulation of models used in dss, which makes them easy to understand, use and combine 模型编码规范化便于模型管理和查询;模型数据规范化包括模型描述文件和对该文件的操作两个部分,使得模型描述和模型实现相分离,统一了模型的表达,规范了模型数据的操作以及模型运行等。模型封装支持多种语言实现的模型,使之符合模型规范化要求。模型规范化提供了有效管理、组织、运行、封装决策模型的基础,使得模型易于理解和使用,并方便模型组合。