对大量的样木进行长期的固定观察时,必须要挂上树号牌,一般常见的挂牌方法都是用鈇丝穿上树号牌,两头拧在一起(如图1)。这种方法经多年采用,发现有它的缺点:随着树木的生长,树干的加粗,会把树号牌和铁丝包长进去,影响了树木的生长和发育,病虫害也会从此处侵入。 Long-term fixed observation of a large number of samples of wood, you must hang the tree plate, the common method of listing are used to wear a tree license plate, screwed together two (Figure 1). This method has been adopted for many years and found to have its drawbacks. With the growth of trees and the thickening of tree trunks, tree numbers and wire packs will grow in, affecting the growth and development of trees and pests will invade from here.