论文部分内容阅读
“长”和“短”本是一对矛盾。今天,它反映在林业上,成为影响林业建设的主要问题。所谓“长”是指林业生产周期长。我区生长最快的速生丰产林尚需10—15年成材,栽植其它树种要得到“大木头”,少则几十年,多则上百年,故有“前人栽树,后人乘凉”之说。仅以“大木头”看林业者,一个“长”字便导致其结论是:植树造林得利难矣。
“Long” and “short” this is a contradiction. Today, it is reflected in forestry and has become a major issue affecting forestry construction. The so-called “long” refers to the forestry production cycle length. The fastest-growing fast-growing and high-yielding forest in our district still needs 10-15 years of timber, planting other trees to get “big wood”, ranging from a few decades to as many as a hundred years. Therefore, . Only looking at foresters by “big woods,” a “long” character leads to the conclusion that afforestation is profitable.