全国农业资源一张图研制技术探讨

DISCUSSION ON DEVELOPMENT TECHNOLOGY OF A MAP OF NATIONAL AGRICULTURAL RESOURCES

[目的]文章围绕全国农业资源一张图生产需求,借助空间大数据处理技术,研究利用2018年度全国土地变更调查县级成果,加工全国及82个绿色农业先行示范区耕地、草地、水域农业资源空间分布图的关键技术和方法,探索全国农业资源一张图生产技术流程。[方法]需求分析和软件研发相结合。[结果]基于全国统一地理网格框架,设计由2880个县级土地利用数据库生产集成化全国耕地、草地、水域空间分布栅格图的技术流程,并开发了一体化处理软件平台,形成了全国、2个省、11地市、69县区多尺度耕地、草地、水域等农业资源一张图。[结论]综合采用现代空间信息集成技术,利用国家年度土地变更调查县级土地调查数据快速生产全国农业资源(耕地、草地、水域)一张图栅格数据的技术路线可行,且产品质量可靠,可为全国农业资源管理提供较好的基础数据支撑。

This paper focuses on the production demand of a map of national agricultural resources and uses the current spatial big data processing technology.And it studies the key techniques and methods of processing the spatial distribution map of national agricultural resources by using 2880 counties vector results in 2018.The method of combining demand analysis and software development was adopted.And the results were showed as follows.Based on the national unified geographical grid framework,a complete technical process of producing rasterized spatial distribution map of cultivated land,grassland and water area in 2880 county-level,10000 land use vector data was designed,and an integrated processing software platform was developed.In summary,using modern spatial information integration technology and using county land survey vector data of national annual change survey,it is feasible to produce a map of national agricultural resource grid quickly,and the product quality is reliable.It can provide better basic data support for national agricultural resource management.