森林及相关信息的研究和探讨森林所在地的信息森林分布广，且具有多种经济效益和社会效益。用文字来说明森林覆被率、人工林、天然林、树种、林龄、防护林、自然保护区的分布位置，远不及以图像形式明了。大面积的森林全貌可以从一份图表中详尽地表示出来。为了加深对森林... Research and Discussion on Forests and Related Information Forests Locations Forests are widely distributed and have various economic and social benefits. Use words to illustrate the distribution of forest cover rate, plantation, natural forest, tree species, age, shelterbelts and nature reserves, much less than in the form of images. A large picture of the forest can be exhaustively presented from a chart. In order to deepen the forest ...