1) annual diameter growth
直径年生长量
1.
The variable rate method out-performed the constant rate method in predicting future individual tree survival and diameter growth because the former accounted for the variable rate of annual diameter growth and tree survival probability,which were caused by changes of stand(basal area,dominant height) and tree attributes.
采用北京山区油松定期调查数据,比较研究固定生长率法和可变生长率法建立的单木直径年生长量模型和年存活率模型。
2) diameter increment
直径生长量
1.
Based on analyzing relationship between diameter increment of individual trees with tree size, competitive status, and site condition and finding out the major independent variables, the growth models for individual trees in the natural mixed forests, that have simple form, good pred.
本研究以大兴安岭地区和吉林地区天然混交林为研究对象,利用固定样地复测数据,通过分析各主要树种单木直径生长量与其自身大小、竞争和立地条件的关系,找出影响林木生长量的主要因子,并采用逐步回归技术建立了形式简洁、预估良好并便于生产应用的天然混交林各树种与距离无关的单木生长模型。
2.
Based on analyzing relationship between diameter increment of individual trees with tree size, competitive status, and site condition and finding out the major independent variables, the growth models for individual trees of 15 species in the natural mixed forests, that have simple for.
本研究以长白山地区白河林业局天然混交林作为研究对象,采用1990年～2000年10年间复测的712块固定样地数据,通过分析各主要树种单木直径生长量与其自身大小、竞争和立地条件的关系,找出影响林木生长量的主要因子,并采用逐步回归技术建立了形式简洁、预估良好并便于生产应用的天然混交林15个树种与距离无关的单木生长模型。
3) Diameter growth
直径生长
1.
As the solution of the definite problem,an analytical expression is obtained,which describes the changing structure in terms of diameter growth and mortality of the individual trees.
通过求解这个定解问题，得到了用单木的直径生长和枯损来描述林分结构动态变化的解析表达式。
5) growth diameter
生长直径法
1.
The growth diameter of fungi showed that Bacillus cereus 357 produced different amount of bioactive substance depending on the culture media as well.
建立了判断对357细菌活性物质相对浓度的方法即生长直径法,同时指出,抑菌圈不能有效地反映357细菌活性物质的相对浓度。
6) diameter growth rate
直径生长率
补充资料：直径
直径
diameter
直径【创恤md份;八“aMeTp} 1)二次曲线的直径(dian犯terofa涨戈ond一orderclu、℃)是通过平行弦中心的直线.称直径相对被它平分的弦(以及相对这些弦的方向)是共扼的(conju-即te).有心二次曲线的直径在曲线中心彼此相交;无心二次曲线的直径是平行的(或者重合).椭圆和双曲线的直径是通过其中心的直线.抛物线的直径是抛物线的轴以及与轴平行的直线. 2)度量空间中集合的直径(dian犯terofaset)是集合的各对点之间的距离的最小上界.
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