So it's really the density of very large old trees that are draped in moss that is important at a forest stand level.
因此被苔藓所覆盖的非常古老的树木的密度确实对森林的林分水平很重要。
By using observation data over 50 years, the paper systematically analyzed the relations of different stand density with diameter, height, crown of trees and so on.
利用近50年的系统定位观测资料，分析红松果材兼用林不同林分密度与直径、树高、冠幅等主要测树因子的关系。
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 stand of big density has a larger quantity of living beings and net productivity.
密度大的林分，生物量和净生产力也大。
Higher density stands reach quatitive maturity earlier than lower density stands, the annual stem volume produced by unit land area of higher density stand is larger than that of lower density stands.
随着密度的增加，林分达到数量成熟期的年限变短，若以数量成熟期为采伐年限，则单位面积年均材积产量仍以高密度林分为最大。
And the effects of the site type, silviculture density and stand age on the above indexes are studied.
并分别立地类型、造林密度、林分年龄对这些指标的影响进行了研究。
The standing nutrient accumulation in whole stand increased with the increase of density.
林分营养元素积累量随林分密度的增加而增加；
The evaluation of the stand density.
对林分密度的评价。
In addition, the paper analyzed and simulated growth process of stand basal area, volume and biomass under different initial planting density for Cunninghamia lanceolate, plantation.
另外，对杉木不同初植密度下林分断面积、蓄积和生物量的生长过程进行了分析和模型拟合。
A proper integration of both azimuthal and radial variations in SAP flux density within a tree can be scaled for whole-tree transpiration, which can relatively accurately estimate stand transpiration.
对树木液流密度在径向和方位上进行适当的整合，可较准确地计算整树和林段蒸腾。
With increase of planting density, market income price and cost price of stand which have same site grade gradually enhance.
相同立地等级的林分随着造林密度的增加，林分的市场收入价格和成本价格逐渐增大。
The ratio of damaged trees was negatively correlated with stand density, soil depth and size class of diameter, and positively correlated with tree height.
林分密度和受灾率及土层厚度和受害株数均呈显著的线性负相关；
This not only tested the forest dynamics model but also verified the theory of stand density effect.
通过本文的研究既检验了林窗动态模型又印证了林分密度效应理论。
By means of the studies we also found that the stand density and site conditions had important effects on the dead and dying tree number, but the density was more important than the site conditions.
研究发现，林分密度和立地条件对枯死木株数均有重要作用，但密度比立地条件更重要。
The model of calculating new culm yield has also been established depending on the nonlinear relationship between new culm yield and bamboo stand density, culm age component.
并根据新竹产量与竹林密度和林分年龄组成的非线性相关关系，建立了新竹产量的预测模型。
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。
But stand volume descents to a great extent, age class and stand density structure are maladjusted badly, and the number of stand growth is low.
但蓄积量大幅下降，林分的龄组、密度结构严重失调，林分生长量偏低。
At last, this paper will also apply the stand density model established with artificial neural network in asset assessment of forest resources and the estimation of growth and harvest.
最后，本文还将把人工神经网络建立的林分密度模型用于森林资源资产评估，进行生长收获的预估。
The shearing strength in tangential face and shearing strength in radial face of P. densiflora wood from the stand with low density were lower than those from the stand with high density.
弦面和径面抗剪强度，林分密度相对低的林分人工林赤松低于林分密度相对高的林分人工林赤松；
Stand density had a weak impact on height, crown height, crown width, diameter and length of upper branches;
密度对上层木的树高、冠长、冠幅、树冠上层枝直径和枝长等的影响比较小；
The stand density of SWCFSWL was determined.
研究确定了辽西地区林分密度；
The correlation between the output of different dimension stock and stand density was significant.
植株密度和果实产量之间存在一种相关关系。
The correlation between the output of different dimension stock and stand density was significant.
植株密度和果实产量之间存在一种相关关系。
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