林业资源信息空间基底生成的技术方法研究

The technology and method of building spacial fundus of Forestry Resources Information

建立林业资源信息空间基底是为林业资源的属性信息提供空间数据,为GIS在林业方面的应用提供基础数据.本文提出了林业空间基底制作的技术路线,即:采用国家测绘局提供的1∶100万和1∶25万数据库作为与林业信息相结合的空间基础信息,根据林业的需要提取数据,利用现势性强的测绘资料更新数据,制作林业资源信息的空间基底,并对数据质量进行评定.

Building spacial fundus of Forestry Resources Information can offer spacial data for attribute information of forestry resources and base data for GIS application in forestry.This article refers to technical route of process spacial fundus of forestry.That's to say:the 1∶1?000?000 and 1∶250?000 databases National Survey and Drawing Bureau offers are regarded as spacial information base combined with forestry information,it abstracts data according to the need of forestry,renews the data with material of survey and drawing which is more approached to the circumstances of land being used now.It makes the spacial fundus of forestry resources information and gives the quality assessment of the data.