permanent sample plot [林] 固定样地 ; [林] 固定标准地 ; 永久标准地
temporary sample plot [林] 临时标准地 ; [林] 临时样地
yield sample plot 收获表标准地
sample plot method [林] 样地法
sample plot index 样地指数 ; 和样地指数
Sample-plot survey 标准地调查
A sample plot of the unstable frequency with crank speed is illustrated.
绘制了不稳定频率相对于曲柄速度的样本曲线。
Within the stand one sample plot is laid down, often covering a large part of the stand.
在群落片段范围内设置一个样地,通常应占据群落片段的大部。
The generation and damage regulation of red turpentine beetle (Dendroctonus valens) are studied with the method of sample plot and tree-by-tree survey.
采用标准地调查和单株调查的方法,研究了红脂大小蠹的发生和危害规律。
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