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林分的动态(即;生长、死亡,再生产和林分中各种错综复杂的变化。)可以通过直接的或间接的方法予估。直接法,如林分表法,包括在现有林分中进行野外观测。在林分中观察过去的生长和死亡状况用来推断未来的发展趋势。然而,直接观测森林的生长和死亡,在许多情况下是不可能实现的。通过林分表法导出长期的直径生长,死亡和内生长之间的关系是不可靠的。此外,经营者往往要求估价一个涉及广泛经营措施的选择。然而根据过去的生长推论会受到限制。同时直接观测的费用有时大的惊人。因此,林学家们往往依靠间接的方法预估林分的动态-即根据另一些林分的研究推断林分的生长,死亡和与一个林分有关的数量。使用表,公式或计算规模拟模型等方法来推论。预测林分动态的一些方法统称为生长和收获模型。
The dynamics of stand (ie, the intricate changes in growth, death, reproduction and stand) can be estimated either directly or indirectly. Direct methods, such as the stand table method, include field observations in existing stands. Observations of past growth and mortality in the forest are used to infer future trends. However, direct observation of the growth and mortality of forests is not possible in many cases. The relationship between long-term diameter growth, death and endophytic growth is not reliably established by stand-alone tables. In addition, operators often ask for an option that involves a wide range of business practices. However, the corollary based on past growth is limited. At the same time the cost of direct observation is sometimes staggering. As a result, forest scientists often rely on indirect methods to predict the dynamics of the stand - that is, to infer the stand growth, the number of deaths and the number of stands associated with the stand based on studies of other stands. Use tables, formulas or computational modeling methods to deduce. Some of the ways to predict stand dynamics are collectively referred to as growth and harvest models.