stand density index的意思|示意
林分密度指数
stand density index的网络常见释义
林分密度指数 马尾松造纸原料林生长收获预估模型的研究_松香网 关键词： 马尾松；林分密度指数；全林分模型 [gap=922]Keywords ：masson pine; stand density index; whole stand model
林分密度指标 4.3.2 林分密度指标 林分密度指标（Stand density index）是评定林分内林木间拥挤程度的尺度。林分中 林木间的拥挤程度取决于单位面积上的林木株数、林木平均大小以及林木在林地上的分布。
stand density index相关例句
Stand density index (SDI) was applied as a quantitative index to measure mean crowd degree between trees.
选择林分密度指数(SDI)作为反映林分中林木之间平均拥挤指标。
Single age variable stock volume growth model had low coefficient of determination, but it was improved a lot by introducing site index and stand density index in reparameterization.
林龄单因变量的蓄积量生长模型决定系数低，引入地位指数和密度指数再次参数化的生长模型可显著提高模型拟合度。
The ratios of stem, bark and branch biomass to total biomass of stand and individual tree are basically steady in different site index and planting density.
林分和单株的树干、树枝、树皮生物量组成比例均随立地指数、造林密度的变化无明显的差异。
It was larger in sunny slope than in shady slope under the similar density, and the index gap between different slope increased with the increase of stand density.
叶面积指数随林分密度的增加而增加，在相同密度条件下阳坡的叶面积指数大于阴坡，且密度愈大两者相差愈大。