一、问题的提出林业的发展一直面临着如何解决日益增长的木材需求和生态环境需求的问题,工业人工林——为生产工业用材而培育的人工林——在解决这些问题中正发挥着越来越明显的作用。由于森林的功能具有多样性,而且多种功能之间又有不同程度的矛盾性,林地的自然潜力和所处的经济环境也有着明显的差异性,这就使人们可以利用少量自然条件、经济环境优越的林 First, the problem raised The development of forestry has been facing how to solve the growing demand for timber and ecological needs, industrial plantations - for the production of industrial timber and cultivate the plantation - are playing to solve these problems more and more The more obvious effect. Due to the diversity of functions of forests and the different degrees of contradictions among them, the natural potential of forestlands and the economic environment in which they are located are obviously different. This makes it possible for people to make use of a few natural conditions, Forest superior environment