基于WebGIS与模型的农业经济监测与评价系统的建立  

Development of information system for investigation and evaluation of economic situation of regional agriculture based on WebGIS and models

作　　者：李卫江[1] 吴永兴[2] 茅国芳[3] 

机构地区：[1]上海师范大学地理系,上海200234 [2]华东师范大学地理系,上海200062 [3]上海市农业技术推广服务中心,上海201103

出　　处：《农业工程学报》2010年第5期213-219,共7页Transactions of the Chinese Society of Agricultural Engineering

基　　金：上海市教委重点学科<地理学与城市环境>项目(J50402);上海师范大学科研项目(SK200846);上海师范大学重点培育学科项目(DZL801);上海市科委科技攻关项目(08240514000)

摘　　要：为动态、准确获取区域农业生产的投入结构、产出水平、经济效益等信息,在时空数据库支持下,以开源SharpMap为地图服务器,利用ASP.NET(C#)语言,建立农业经济监测与评价系统(SHAEWS),SHAEWS的构建包括农业投入产出监测数据库和模型系统两部分。数据库由样本农户动态监测数据、地形图数据和元数据组成。模型系统包含作物数据聚合与分析模型、轮作茬口识别及数据聚合分析模型、柯布-道格拉斯模型和综合评价模型。SHAEWS包括样本数据采集与编辑、样本数据检验、作物评价、茬口评价、投入产出定量模型分析、时序分析、区域分析、报表输出、元数据浏览等9个功能子系统。结果表明,该系统能够把样本监测数据与地图数据相结合,并通过模型运算,实现区域农业投入产出等信息的在线共享、评价与服务。In order to dynamically and accurately obtain the information of input structure,output level,and economic benefits of regional agriculture production,based on the spatial-temporal database and the open source map server of SharpMap,the WebGIS-based information system for investigation and evaluation of economic situation of regional agriculture（SHAEWS） was developed with ASP.NET（C#）.The construction of SHAEWS was divided into two parts：agricultural input-output database and model system.The database was composed of sample monitoring data,relief map data and metadata.The model system covered crop data analysis and aggregation model,crop stubbles extraction and analysis model,Cobb-Douglas production model,and comprehensive evaluation model,etc.SHAEWS included nine functional subsystems named as sample data acquisition,sample data examination,crops evaluation,crop stubble evaluation,crops input-output simulation with Cobb-Douglas production function,time series analysis,spatial analysis,data report,and metadata browsing,respectively.The results show that SHAEWS can combine sample monitoring data with map data and through relevant model calculations,can achieve the on-line sharing,analysis,evaluation and consultant service of agricultural input-output information.

关 键 词：数据库系统 模型 监测 WEBGIS 区域农业 投入产出 评价 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] S126[自动化与计算机技术—计算机科学与技术]