山地森林与平原森林不同,平原森林主要是生产木材,而山地森林的水土保持和调节气候的作用占首位。林业的任务是保证综合利用山地森林的全部有利特性。不应当由于利用木材而破坏它们的水土保持效能。为使山地森林得到合理利用和再生产,经营方式具有决定性的意义。在山地森林中应该完全禁止皆伐,因为它会使这些森林丧失它们的水土保持和调节气候的特性,促进地表遥流的形成和土壤侵蚀。不久 Mountain forest and plain forest is different from the plain forest is mainly the production of wood, and mountain forests to soil and water conservation and climate regulation role in the first place. The task of forestry is to ensure the comprehensive utilization of all the favorable characteristics of mountain forests. Soil and water conservation effectiveness should not be compromised by the use of timber. For the mountain forests to be rational use and reproduction, mode of operation is of decisive significance. Clear logging should be completely forbidden in mountain forests, as it will deprive these forests of their soil and water conservation and climate regulation, and promote the formation of surface currents and soil erosion. soon