预测林分生长和收获量的方法,主要由四个因素确定: 1.林龄或年龄分布(异龄林); 2.林地的生产潜力; 3.过去和现在对生产潜力的利用程度; 4.经营作业的应用(如间伐,施肥、植被竞争的控制等)。第二个因素,即生产潜力,涉及到立地质量,本文将作详细介绍。第三个因素,即立地占用率,在很大程度上与“林分密度”的概念是同义的。 The method of forecasting stand growth and harvest is mainly determined by four factors: 1. Forest age or age distribution (Aging forest); 2. Production potential of forest land; 3. Past and present utilization of production potential; 4 Applications for operating operations (eg thinning, fertilization, control of vegetation competition, etc.). The second factor, the potential for production, involves the quality of the site, which will be described in more detail in this article. The third factor, site occupancy, is to a large extent synonymous with the concept of “stand density.”