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中文摘要：
以Jensen水分生产函数为基础,运用多目标规划的方法,建立了旱作条件下小麦、玉米、大豆、马铃薯、高粱等作物种植结构优化系统,并编制了可视化应用程序。输入多年降雨资料、日照时数、每日最高最低温度、每日风速等基本气象资料以及相关的土壤、作物参数,就可优化出研究地区主要作物种植比例和结构,操作简单,具有实用性。以山西晋中地区为例进行应用,系统根据多年的降雨资料预测出不同水文年型下每种作物的单产,在此基础上对种植结构进行了优化,并与实际结果比较证明其可靠性,从而对作物种植结构进行优化和指导,使粮食产量、经济效益、水分利用达到协调统一。
英文摘要：
Based on Jensen model of water production function,using the multi-objective program methods and Visual Basic 6.0,a visual decision support system was developed to optimize planting structure of dryland crops,such as wheat,corn,soybean,potato,sorghum and other crops.The users can input related data（multi-year rainfall,sunshine hours,daily maximum and minimum temperature,daily wind speed,etc.） and other basic parameters（soil,crops）,and can optimize the structure of the main crops.Its operation is simple and practical.Its application was conducted in Jinzhong area in Shanxi,each crop＇s yield was predicted based on multi-year rainfall data under different types of year.Compared with the actual results,it proved to be reliable,so it can optimize and guide the crop planting structure and area,while uniting food production,economic benefits and water use.
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