基于GIS和ES的电子农务平台

【作者】 惠建华；

【导师】 王万森； 赵春江；

【作者基本信息】 首都师范大学 ， 计算机应用技术， 2004， 硕士

【摘要】 本研究从搜索和分析农作物信息、环境地理信息和管理信息及三者之间的关系入手，利用GIS和ES集成技术，综合现有的技术成果和专家经验，建立了以农作物管理为主体的电子农务平台，以充分协调和利用各种农业资源，进行优化配置和综合规划，提供特定区域内降低成本、增加产出、提高效益的作物管理方案，为政府宏观决策和生产者提供快速、准确、定性、定量的信息服务。 本电子农务平台具有五大功能模块：(1)信息查询可以通过光标指定位置或者根据不同属性和逻辑关系的组合条件进行属性查询，并以表格和图形形式输出查询结果；可以实现地图的自由放大、缩小、漫游及缓冲区分析，可以量测不同区域的周长、面积；(2)专题分析可以根据用户选择的内容动态生成各种专题图，并根据专题的历史数据进行各种统计分析和预测。(3)智能决策可以对区域农业资源的空间位置、空间分布进行综合分析，并结合应用模型及专家经验进行作物优化布局、良种推荐、肥料优化分配和优化灌溉决策。系统能根据用户不同的决策目标或意向，给出多种决策方案，并利用综合评价函数进行方案满意度分析和经济效益评价。(4)系统维护包括数据库维护、模型库维护和知识库维护。数据库维护主要是数据的编辑、更新等；模型库维护主要是模型参数的修正；知识库维护主要是知识的编辑、一致性检验和知识求精、完善等。(5)系统帮助主要功能是系统操作指南和学习系统。更多还原

【Abstract】 Based on searching for and analyzing the crop information, geographic environment information, management information and their relation, making use of the integrated technique of GIS and ES, synthesizing current technological results and expert’s experience, this research established electronic platform for agriculture, to harmonize well and make use of kinds of agricultural resources, to optimize its distribution and programming, and to provide the crop management projects of the low cost, incremental output and high benefit inside the particular district. The platform can provide the fast and accurate information service with governments and farmers.The system has five main functions:(1) Information Search Making use of mouse to specify position on the map, or according to combined condition of the different attribute and logic relation, it may search for the attribute information of certain region, and display the results with table or graph; It also has the following functions: zoom-in, zoom-out and roam of map, buffer zone analyzing, measuring perimeter and area of certain zone on the map. (2) Special Subject Analysis: According to item that user choose, this system can make the map of all kinds of subjects, and can realize every kind of statistics, analysis and forecast according to the historical datum of some special subject. (3) Intelligence Decision: This system realizes the integrated analysis of spatial allocation and spatial distributing of the agricultural resources in a curtain region, and provides users with the decisions of optimization of layout of farm crops, recommend of good breeds, optimization of fertilizers distribution, optimization of water resources ,utilizing applied models and expert’s experience to solve problem. It can give various decision projects according to different decision targets or intentions of users, and analysize satisfaction of the project and evaluate the economic benefit utilizing synthetical evaluation model. It may output the results in the form of the spatial distribution diagram or table. (4) System Maintenance: It includes the maintenance of database, model-base, and knowledge-based. The maintenance of database includes the editing and updating of datum; The maintenance of mode-base includes modification of model parameters; The maintenance of knowledgebase includes editing and extension of knowledge-base. (5) System Help :It helps user operate and study the system.更多还原