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- The density, basal area and volume of CWD trended to decrease from north to south slope. 從陰坡、半陰、半陽(yáng)到陽(yáng)坡,CWD的密度、胸高斷面積和體積都呈現遞減的趨勢;
- Albrektson A.Sapwood basal area and needle mass of Scots pine (Pinus sylvestris L.) tree in Central Sweden[J]. 王桂巖王彥等.;13種楊樹(shù)木材物理力學(xué)性質(zhì)的研究[J]
- For both sapwood and wetwood basal area, there were highly significant differences at various planting densities. 對邊材面積和濕心材面積影響均達極顯著(zhù)水平。
- In the tree crown, the basal area growth of trunk sapwood is approximately equivalent to that of the upper branch sapwood. 在樹(shù)冠內，樹(shù)干邊材斷面積生長(cháng)量與其上部的枝條邊材斷面積生長(cháng)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. 地鐵車(chē)輛用大型鋁合金型材一般斷面形狀較復雜,壁厚相差懸殊,斷面積及外接圓大,且寬厚比較大,是生產(chǎn)難度很大的一類(lèi)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，提出一種主方向結合面積因子的方法將建筑物目標標繪為規則的矢量多邊形。
- 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. 林分密度從404株/hm2降至387株/hm2，而基礎面積從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. 莽山喬木的最大胸徑、胸高斷面積之和與海拔呈明顯的負相關(guān)性,而立木密度的變化規律不明顯。
- Mang, maximum DBH and basal area showed significantly negative correlations with altitude while stem density did not change significantly with altitude. 莽山喬木的最大胸徑、胸高斷面積之和與海拔呈明顯的負相關(guān)性，而立木密度的變化規律不明顯。
- 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. 結果表明,群落均勻度指數、空隙度和開(kāi)度、林分胸高斷面積和林分密度在大尺度上表現出顯著(zhù)的空間結構。
- 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. 在構建間伐和未間伐林分斷面積生長(cháng)模型時(shí)，選用了Richards和Sehumaeher模型進(jìn)行擬合。
- 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. 該方法除具有與Murray方法同樣的作用和效果外，還能預估諸如林分斷面積平均直徑、偏度等所需要的多階矩。
- 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. 在次生演替過(guò)程中, 落葉物種比例以5年恢復群落中最高, 而后隨群落演替進(jìn)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. 本文從遷出地因素、遷入地因素、中間障礙因素和勞動(dòng)力個(gè)人因素等四個(gè)方面對存在的制約因素進(jìn)行了系統分析。
- He steered into the parking area. 他把車(chē)開(kāi)進(jìn)了停車(chē)區。
- Basal area distribution of Chinese fir plantation 杉木人工林林分斷面積分布規律的研究
- Study on Basal Area Growth Model for Thinned Stands 間伐林分的斷面積生長(cháng)模型研究
- individual tree basal area growth 單木斷面積生長(cháng)
- The slum area was sordid and filthy beyond belief. 該貧民區之污穢骯臟簡(jiǎn)直令人難以置信。
- The flood cut a wide swath in this area. 洪水席卷了這一地區，滿(mǎn)目一片瘡痍。
