林草湿与国土三调数据对接融合方法探讨

Discussion on Data Fusion Method of Forest Grassland Wetland with The Third Nationwide Land Survey

在全国首次开展“林草湿与第三次全国国土调查数据对接融合”背景下,针对图斑融合难度大的实际问题,对比分析了裁切法和区划法两种小班细化方法,得出裁切法具有人工参与少、适合批量操作、效率较高等优点;区划法具有成果数据量小、碎图斑少、图面整洁、利于林草部门管理和使用等优点。通过效率和成果综合对比,裁切法适合林草资源较多、地形破碎的地区;区划法适合林草资源较少、有林带的地区。

Under the background of"data fusion of forest grassland wetland with the third nationwide land survey"for the first time,in view of the practical problem of the difficulty of map fusion,this paper compared and analyzed the two shape division methods of cutting method and zoning method,and concluded that the cutting method had the advantages of less manual participation,suitable for batch operation,high efficiency,and the zoning method had the advantages of small amount of results data,less broken map spots,clean map,and convenient management and use of forest and grass departments.Through the comprehensive comparisons on efficiency and results,the study showed that the cutting method was suitable for areas with more forest and grass resources and broken terrain,and the zoning method was suitable for areas with less forest and grass resources and forest belts.