基于GIS的区域作物生长模拟模型  

Regional crop growth model based on GIS

作　　者：唐天均 雷玉平[2] 

机构地区：[1]深圳市环境科学研究院,国家环境保护饮用水水源地管理技术重点实验室,深圳518001 [2]中国科学院遗传与发育生物学研究所农业资源中心,石家庄050021

出　　处：《农业工程学报》2012年第2期180-185,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：中国科学院知识创新工程重要方向项目(KZCX2-YW-449)

摘　　要：利用VB程序语言改写SUCROS作物生长模型,将其模块法并改进了水分平衡和作物系数算法。通过试验数据对参数的校验,模型可以较准确模拟主要作物生长变量和预测产量。以GIS与作物生长模拟模块紧密集成的方式,采用ArcGIS Engine控件开发了区域作物模拟模型(RCGM),可用以模拟区域作物生长和产量时空分布。建立空间数据库管理区域作物生长模拟所需空间数据。以河北省栾城县为例,应用RCGM进行县域冬小麦生长模拟和产量预测,模拟产量平均相对误差为12.51%,表明区域模型模拟也有较高准确性。SUCROS crop growth model was rewritten into a modular model using VB programming language,and its calculation of water balance and function of crop coefficient were improved.With parameter calibration by crop field experimental data,the model may accurately simulate the major crop growth variables and yield.A regional crop growth simulation model,RCGM,was developed using ArcGIS Engine components by a tightly integrated method to combined GIS and simulation module,and it can be used to simulate crop growth and predict crop yield in a regional scale.The spatial database was established to manage spatial data for the regional model.RCGM was applied to simulate winter wheat growth and estimate crop yield at a county scale in Luancheng county,Hebei province.The simulating results were reliable with an average relative error of 12.51% between measured and estimated yields.

关 键 词：GIS 模型 作物生长 空间数据库 冬小麦 产量预测 

分 类 号：Q141[生物学—生态学]