航片土壤普查就是使用飞机拍摄的象片进行土壤普查。在工作程序上,它和常规土壤普查不同之点是:通过室内判读初步确定土壤类型并把土壤界线勾绘在底图上,然后到野外进行补充调查与校核验证。而常规土壤普查,则先到野外挖坑钻孔研究鉴别土壤类型,许勾绘在底图上,然后转入室内工作。航片土壤普查具有工效、精确性高,节省费用,减少野外工作量,便于勾绘土壤界线,便于和群众结合进行土壤普查等优点。它的 Airborne soil census is the use of images taken by aircraft for soil census. In terms of working procedures, it differs from conventional soil censuses in that preliminary identification of soil types through indoor interpretation and mapping of soil boundaries on the bottom map, and then to the field for supplementary investigation and verification. The conventional soil census, the first hole to dig the study of the field to identify soil type, Xu hook painted on the bottom map, and then transferred to the indoor work. Airborne soil census with ergonomics, high accuracy, save costs, reduce the workload of the field, easy to draw the soil boundary line, with the masses to facilitate the combination of soil survey and so on. its