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- The density, basal area and volume of CWD trended to decrease from north to south slope. 从阴坡、半阴、半阳到阳坡,CWD的密度、胸高断面积和体积都呈现递减的趋势;
- Albrektson A.Sapwood basal area and needle mass of Scots pine (Pinus sylvestris L.) tree in Central Sweden[J]. 王桂岩王彦等.;13种杨树木材物理力学性质的研究[J]
- For both sapwood and wetwood basal area, there were highly significant differences at various planting densities. 对边材面积和湿心材面积影响均达极显著水平。
- In the tree crown, the basal area growth of trunk sapwood is approximately equivalent to that of the upper branch sapwood. 在树冠内，树干边材断面积生长量与其上部的枝条边材断面积生长量大致相等。
- Large-sized sectional material used in sub-way carriage has the feature of complex profile,big circumscribed circle and large basal area. 地铁车辆用大型铝合金型材一般断面形状较复杂,壁厚相差悬殊,断面积及外接圆大,且宽厚比较大,是生产难度很大的一类型材。
- Finally, a method combined both the dominant direction and area factor is used to reconstruct the target buildings into regular polygons. 最后，提出一种主方向结合面积因子的方法将建筑物目标标绘为规则的矢量多边形。
- Stand density was reduced from 404 to 387 stem/hm 2,and basal area from 44 83 to 43 79 hm 2.All species in high canopy layer except Acer mono decreased in number of stems. 林分密度从404株/hm2降至387株/hm2，而基础面积从44.;83hm2降至43
- On Mt. Mang, maximum DBH and basal area showed significantly negative correlations with altitude while stem density did not change significantly with altitude. 莽山乔木的最大胸径、胸高断面积之和与海拔呈明显的负相关性,而立木密度的变化规律不明显。
- Mang, maximum DBH and basal area showed significantly negative correlations with altitude while stem density did not change significantly with altitude. 莽山乔木的最大胸径、胸高断面积之和与海拔呈明显的负相关性，而立木密度的变化规律不明显。
- The results showed that Pielou evenness index, gap-fraction, openness, stand basal area, and stand density were influenced by spatial structure of the community at a broad scale. 结果表明,群落均匀度指数、空隙度和开度、林分胸高断面积和林分密度在大尺度上表现出显著的空间结构。
- Richards growth model and Schumacher growth model were used as the basal area growth model in establishing the basal growth prediction of Larynx lenses and Cunningham lancelet plantation in this study. 在构建间伐和未间伐林分断面积生长模型时，选用了Richards和Sehumaeher模型进行拟合。
- More-over,the method of this paper can predict multi-power moments(for example,ones concernedwith average basal area,skewnessand so on)in addition to having the same use and effectivnesswith Murray method. 该方法除具有与Murray方法同样的作用和效果外，还能预估诸如林分断面积平均直径、偏度等所需要的多阶矩。
- Cratoxylum cochinchinens, Canthium horridum, and Glochidion fagifolium were the most abundant species, while Liquidambar formosana, C. cochinchinens, and G. fagifolium had the highest basal area. 在次生演替过程中, 落叶物种比例以5年恢复群落中最高, 而后随群落演替进程下降；
- This article makes a system analysis on the restricting factors from four aspects of emigrant area factor, immigrant area factor, intervening obstacles factor and labor force personal factor. 本文从迁出地因素、迁入地因素、中间障碍因素和劳动力个人因素等四个方面对存在的制约因素进行了系统分析。
- He steered into the parking area. 他把车开进了停车区。
- Basal area distribution of Chinese fir plantation 杉木人工林林分断面积分布规律的研究
- Study on Basal Area Growth Model for Thinned Stands 间伐林分的断面积生长模型研究
- individual tree basal area growth 单木断面积生长
- The slum area was sordid and filthy beyond belief. 该贫民区之污秽肮脏简直令人难以置信。
- The flood cut a wide swath in this area. 洪水席卷了这一地区，满目一片疮痍。
