基于ArcGIS Engine构建测土配方施肥信息系统

以重庆忠县为研究区域,利用可视化程序设计语言Visual Basic6．0结合二次开发平台ArcGIS Engine,在充分分析丘陵山地农业生产特点基础上建立了测土配方施肥信息系统和相应的地理空间数据库。探讨了系统的总体结构、数据库与模型库的构建以及功能设计．提出对地形空间数据与土地利用现状空间数据按县、镇、核心示范片3个层次进行组织;在对各种空间数据叠加分析的基础上,重点对研究区域内的“3414”试验数据进行肥料试验回归分析,形成了配方施肥模型．系统的建立实现了对测土配方施肥所需相关数据的科学管理和相应的分析功能,为测土配方施肥技术的推行提供了技术支撑和辅助决策．

Development of a Recommended Fertilization Information System Based on ArcGIS Engine

Taking Zhongxian conuty in Chongqing as study area,using VisualBasic6.0 combined with ArcGIS Engine,on the bases of making full analysis of agriculture production in hilly region,this paper established recommended fertilizer information system and corresponding geographical spatial database.The paper discussed the structure and functions of the system,also discussed the foundation of database and fertilization model.This paper brought forward a way to organize the terrain spatial data and the land using status spatial data based on three levels,i.e.county,town and the core demonstration area;by analyzing of each spatial data and stressing on regress analysis of "3414" experiment in the study area,the authors formed the model of fertilization.The establishment of the system realized scientific management with the relevant data of recommended fertilizer scientifically and a series of analyzing functions,also provided technical support and assistant decision to extend recommended fertilizer information.