影象地形图,比过去进行森林经理时,编制的象片平面图、纠正象片略图、图解分区图优越得多。它与线划地形图比较,有着影象信息丰富、地形逼真、生产效率高、成本低、出图周期短等优点,同时它还具有象片平面图和线划地形图两者的作用。如果把它应用在林区 Image topographic map than the past when the forest manager, the preparation of the image plan, correct image thumbnails, graphical partition map is much more superior. Compared with the line topographic map, it has the advantages of rich image information, realistic terrain, high production efficiency, low cost and short drawing cycle. It also has the functions of both the image plan and the line plan. If it is applied in the forest