森林资源管理“一张图”与国土“三调”成果融合研究

Integration of"One Map"of Forest Resource Management and Results of Land"the Third Survey"

长期以来,自然资源部门与林草部门在土地分类体系和地类认定标准上不统一,国土“三调”(第三次全国国土调查)数据与森林资源管理“一张图”数据存在较大差异,亟待进行数据融合,形成相对统一的数据底板。本文基于国土“三调”成果,梳理了森林资源管理“一张图”与“三调”林地数据之间的地类转换标准,消除了二者在林地分类上的混淆,利用地理空间分析技术有效处理了融合过程中图斑边界不套合等情况,建立了部门之间的联动更新机制,提出了“高分遥感影像+林地要素智能识别+外业举证”的地类核实方法,解决了融合过程中地类不一致等问题。本研究夯实了“以图管地”的自然资源管理工作基础,为履行“两统一”职责打下了坚实的数据基础。

For a long time,the natural resources department and the forest and grass department are not unified in the land classification system and land category recognition standards,and there are great differences between the data of land"the third survey"(the third national land resource survey)and the"one map"data of forest resource management.It is urgent to conduct data fusion to form a relatively unified data base.Based on the results of land"the third survey",this paper combed the land type conversion standards between the"one map"data of forest resource management and the forest land data of land"the third survey",eliminated their confusion of forestry land classification,effectively dealt with the cases such as the mismatching of map spot boundaries during the fusion by using geospatial analysis techniques,established the linkage updating mechanism between departments,proposed the land type verification method of"high-resolution remote sensing image+intelligent identification of forest land elements+field evidence"to solve the problems such as land type inconsistency in the fusion process.This study consolidated the foundation of natural resource manage-ment work of"managing the land with maps",and laid a solid data foundation for performing the responsibility of"two unifications".