1) small sample plot method
小样地法
2) plot size
样地大小
1.
Data from 4 100 m×100 m natural forest plots were used to estimate tree number per hectare and basal area based on plot sizes, the difference between estimated and actual values was calculated.
采用4块100m×100m的天然林样地材料,根据不同样地大小对应林木的株数和断面积来估算其每公顷株数和断面积,计算估计值与实际值的差异;并分别利用角尺度和双相关函数分析不同大小的样地对应林木个体的空间分布格局。
3) Reference land unit method
样地法
1.
This paper dealed with the design of reference land unit method of arable land evaluation at county(level).
该文首先进行了县域耕地样地法评价的方案设计,该方法的核心是在耕地质量分计算中,将评价单元的特征与设置与评价区域内的标准样地进行对比后完成的。
4) wheat soil sample
小麦地土样
5) small sample method
小样本方法
1.
A small sample method for testing the fatigue crack growth rate curve of pressure vessel steel;
压力容器钢疲劳裂纹扩展速率曲线测试的小样本方法
2.
A small sample method for testing fatigue crack growth rate curve of steel was presented in this paper using a formula of two-dimensional one-side tolerance factor.
应用二维单侧容限系数公式,提出了一种测定金属材料疲劳裂纹扩展速率的小样本方法。
3.
A small sample method for obtaining the surface fatigue crack growth curve of engineering materials is presented.
提出了一种测试表面疲劳裂纹扩展性能曲线的小样本方法 ,该方法可以综合利用以往的经验数据和当前试验数据确定表面疲劳裂纹扩展性能曲线 。
6) Quantative plot sampling
定量样地法
补充资料：平头小样巾
1.头巾名。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条