摘要
以实现小麦优质高效生产为目标,探讨了基于网络GIS的作物品质监测与肥水调优栽培系统的设计、实现与应用。系统以组件GIS、网络GIS和空间数据库技术等主流地理信息技术为支持,实现以遥感为主要数据源的多源数据融合分析、模型与知识的灵活管理。系统以小麦栽培农艺学知识为基础,明确影响小麦籽粒品质形成的主要因子,通过反演模型和评价模型从遥感影像中提取相关因子用以指导小麦栽培,并根据主要影响因子建立小麦品质综合评价模型,实现小麦品质预测。
To realize wheat quality monitoring and planting optimization in fertilization and irrigation, a web-based geographical information system was developed. On the basis of agronomic knowledge for wheat planting, it determined the main factors which determine the formation of wheat grain quality, including wheat variety, soil texture, wheat growing status, blight temperature of wheat canopy, surface soil moisture. The multi-factors evaluation model for estimating wheat grain quality based on the multiple factors that derived from remotely sensed images or background data stored in GIS was developed. Finally, the distribution of integrative quality index or quality grades indicating the grain quality was obtained. Supported by Component GIS, Web-based GIS, Spatial Database Engine technology (SDE) and other advanced Geographical Information Technologies, the system well dealt with the fusion analysis of remotely-sensed data, GIS data and other multi-sources data, flexible management of models and knowledge, and effective linkage between Remote Sensing retrieval models and agronomic models was built.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2004年第6期120-123,共4页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家863项目(2002AA134073
2002AA243011)
北京市优秀人才资金资助
关键词
作物
品质监测
调优栽培
网络地理信息系统
crop
quality monitoring
planting optimization
web-based geographical information system(GIS)
