文档介绍：中国农业科学 2005,38(6):1142-1147
Scientia Agricultura Sinica
基于知识模型和 GIS 的作物生产潜力评价
周治国,孟亚利,曹卫星
(南京农业大学/江苏省信息农业高技术研究重点实验室,南京 210095)

摘要:引入知识模型概念,通过光、温、水、土、施肥、灌溉、社会等因子的逐步衰减,建立作物生产潜力
估算的知识模型。将知识模型与数据库有机结合,以为系统开发平台,利用 MapBasic 和 VB 程序设计
语言,建立基于知识模型的作物生产潜力分析系统,实现作物生产潜力评价的计算机辅助决策。以江苏省作物生
产系统为案例,应用本系统对江苏地区作物生产潜力区域优势进行实例评价,并与实际单产相比较,进行单产潜
力、潜力系数和总产潜力的对比分析,确定作物生产地域优势。
关键词:知识模型;GIS;作物;生产潜力;评价

Knowledge Model and GIS-Based Crop Potential
Productivity Evaluation
ZHOU Zhi-guo, MENG Ya-li, CAO Wei-xing
(Nanjing Agricultural University/Hi-Tech Key Laboratory of Information Agriculture, Jiangsu Province, Nanjing 210095)

Abstract: The concept of knowledge model was introduced, and the knowledge model of crop potential productivity estimation
has been set up by the factor attenuation of solar radiation, temperature, water, soil, fertilization, irrigation and the social factor.
Based on the support of MapInfo systemic development platform and knowledge model, with MapInfo development language
including MapBasic and , an analysis system on crop potential productivity was developed by integrating the knowledge
engineering and database. puter aid decision of crop potential productivity has been realized. An application example in
Jiangsu province was provided, paring to the practical yield per unit area, the potential yield per u