北京地区小麦生产控制系统中《植物保护决策模块》的建模设计

TENTATIVE PLANT PROTECTION DECISISON SYSTEM—A MODULE OF WHEAT PRODUCTION MANAGEMENT SYSTEMFOR BEIJINGa DISTRICT

植物保护决策模块作为"小麦生产控制系统"的子系统之一,是在总体设计的系统控制思想指导下完成麦田有害生物管理,实现在一定的环境条件下经济效益、生态效益、社会效益"最佳"或"较好"的植保决策工具。本模块以控制有害生物种群数量在经济损害水平(EIL)为目标,综合气象类型辨识、品种决策、有害生物种种动态模型、化学防治效果模式做出防治决策方案。本文主要介绍植保决策模块的基本原理、依据和程序设计,也提出了进一步改进的设想。

Decision-making system for pests cotrol,used as a sub- system in a wheat crop management syslem for region arottnd Beijing was tentatively constructed.It was intented to develop such a tool to help the Wheat growers to make appropriate decision so thai satisfactory com- prehensive benifit involving economic,ecologic,and social benifit, could be obtained.The objective of the system was to keep the popula- tions of target pests under the economic injury level,EIL.Simple submo- dels relevant to meteorology-discrimination,cultivar deployment,popu- lation dynamic of the pests,and benifit evaluation of the control mea- sures were developed and organized together to work out the final sugge -stion for pests management of wheat Basic points for simplification and programming approach were discussed and some ideas for further impro- vement were suggested.