| 天然林森林成熟确定原理及方法辩析 |
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| 引用本文： | 方旭东,李茂臣,程守涛,于学斌.天然林森林成熟确定原理及方法辩析[J].林业勘查设计,2010(1). |
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| 作者姓名： | 方旭东 李茂臣 程守涛 于学斌 |
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| 作者单位： | 国家林业局驻黑龙江省森林资源监督专员办;黑龙江省森工总局驻松花江林管局专员办;黑龙江省东方红林业局;黑龙江省森工总局驻合江林管局专员办; |
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| 摘 要： | 无论天然同龄林还是天然异龄林,森林成熟确定的原理都是在于对森林资源的投入、产出和产出效率的比较中如何取得最高产出效率,而比较的前题是投入量必须相等1]。在同龄林的几种森林成熟确定方法的应用中,由于标准地测算过程中就已完成了林地投入量公顷化的转换,因而所计算出的各龄级年平均生长量之间都具可比性,都是产出效率的体现,因而作为森林成熟确定的依据是科学的。异龄林是林分中个体林木的相继成熟,在林木成熟的确定过程中只有通过模式转换的方法,使各径阶林木产出量统一到单位立米立木上来,如立米立木的材种出材量或立米立木的价值量后,所计算出的各径阶间年平均生长量才具可比性,才是产出效率的体现,才可以用作为木材生产服务的林木成熟径阶确定的依据。而这正是天然异龄林森林经营的关键所在。
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| 关 键 词： | 森林经理学 林木成熟确定 原理和方法辩析 |
Natural forests mature theory and method of determining Differentiation and Analysis |
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| Fang Xudong Li Maochen Cheng Shoutao YU Xuebin.Natural forests mature theory and method of determining Differentiation and Analysis[J].Forest Investigation Design,2010(1). |
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| Authors: | Fang Xudong Li Maochen Cheng Shoutao YU Xuebin |
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| Institution: | Songhua river forestry Authority office of the General Bureau of Heilongjiang Forest Industry Harbin/a>;150010/a>;China |
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| Abstract: | The principle of the forest maturity determining method is to compare the input into the forest resource with the output from the forest product and get output efficiency and thereby achieve the highest output efficiency. But the comparable principle must be based on the condition that the input amounts should be equal and comparable.To the even-aged forest ,several forest maturity determining methods are correct because the input amounts are usually transformed into the same rate.Thereby the annual average... |
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| Keywords: | forest management forest maturity theory and method |
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