KNN method, as a non-parametric method, has been widely used in the multi-source surveys and the estimation and retrieval of forest volume.
KNN方法,作为一种非参数方法,已经被广泛的用于寒带和亚寒带地区的多源林业调查和森林蓄积量估计反演。
参考来源 - 基于KNN法的森林蓄积量的遥感估计和反演·2,447,543篇论文数据，部分数据来源于NoteExpress
DID model was used to analyze net effects of CFTRC on the changes in forest areas and forest volume;
DID模型用于分析集体林改对森林面积和森林蓄积量变化的净影响；
According to the shape of scatter plot, the authors fitted and optimized regressive equation, and then estimated the forest volume.
根据其散点图形状进行方程拟合及优选，完成蓄积量的估测。
Based on the comprehensiveness of forest coverage rate, total standing forest stock, average forest volume, a new indicator called 'Forest Thickness'(FT) is put forward in this paper.
本文在综合森林覆盖率、活立木蓄积量、单位面积森林蓄积量等传统林业评价指标的基础上，研究提出了一项新的指标——森林厚度。
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