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联邦德国历来使用收获表进行林业生产,在森林经理的范围内进行蓄积量清查、生长量调查和制定采伐计划.近年联邦德国提出了“接近自然的林业”的经营思想,发现再使用原有的收获表就有很大的问题.应用收获表做设计时,因为清查数据不正确而导致计划不确切.另一方面由于目前森林病态以及动态,应用收获表遇到了阻碍.为此,联邦德国试验用新的方法,如采用常设试验样地,设置临时的或长期的航测样地来调查森林状况和估计森林的生长量.
Federal Republic of Germany has always been using the harvest table for forestry production, within the scope of forest managers inventory volume, growth surveys and the development of harvesting plans.In recent years, the Federal Republic of Germany proposed the “close to the natural forestry” business ideas and found that the use of the original Harvest table has a big problem.When the harvest table design, because the inventory data is incorrect and lead to the plan is not accurate.On the other hand due to the current forest sickness and dynamic, applied harvest table has been hindered.To this end, the Federal Republic of Germany trial With new methods, such as the use of permanent test plots, provision of temporary or long-term aerial survey sites to investigate forest conditions and estimate forest growth.