划分集材类型,是林区总体设计(或规划)中伐区设计时首先碰到的一个极其重要的问题。但是,目前我国尚未有一个统一的标准。在过去的设计中,即使跑遍山山水水,花了大力气,也只能笼统地选择。这样,毕竟是缺乏科学根据的。集材类型如何划分?据日本教授岩川治先生在《林道与林道网》一文中指出,在采运作 Dividing the type of timber is an extremely important issue that we first encountered in the design of the cutting area in the overall design (or planning) of the forest area. However, at present, our country does not have a unified standard yet. In the past design, even if all over the mountains and rivers, spent a lot of effort, only a general choice. In this way, after all, there is a lack of scientific basis. How to divide the type of skid? According to the Japanese professor Mr. Iwasawa governance in the “forest Road and Link Road,” a paper pointed out that the mining operation