异龄林是指林木年龄相差一个龄级以上的森林。
... undulated 起伏的，波动的 uneven aged forest 异龄林 uneven grain 不均匀性，不平坦性 ...
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To show the forest quality exactly and guarantee the precision of surveying and calculating the average stand diameter at breast height, the starting measured diameter was suggested to be raised from 6cm to15cm for the natural uneven-aged forest.
为了准确描述林分质量,客观反映林分平均胸径的基础上保证蓄积调查测算的精度,建议对天然异龄林林分,可将起测直径由6cm提高到15cm。
参考来源 - 天然异龄林资产评估研究·2,447,543篇论文数据，部分数据来源于NoteExpress
异龄林经营决策是一个涉及到森林的经济效益和永续利用等多个目标的决策问题。
In this paper, the problem of uneven-aged forest management decision making is considered as a problem of multi-objective decision making.
对直径生长转移概率矩阵模型进行了线性扩展，用以研究混交异龄林的树种组成问题。
A transfering probability matrix model of linearly generalized diameter growth was used to deal with the tree species composition problem of mixed unevenly aged forest.
经研究证明，威布尔分布不但适用于同龄纯林直径分布，而且亦适用于复层异龄林直径分布。
The result showed that the Welbull Distribution was not only suited to diameter distribution of the even-aged pure forest, but also to the multi.
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