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- The tree layer can be easily divided into three sublayers in terms of height. 长序榆更新严重受阻，种群明显处于衰退期；
- Therefore, the carbon stocks are ordered: soil (0-100 cm) > tree layer > shrub > herb > litter > duff. 云杉林的碳库分布序列为土壤(0~100cm)>乔木层>灌木层>草本层>枯落物层>地被物层。 云杉天然林分平均净生产总量为6838.;5kg
- There was no significant difference of diversity index between the tree layer and the shrub layer. 乔木层与灌木层之间多样性各项指标总体无显著差别。
- Species number ranked in the following order: brush and herb layer > tree layer > litter layer > soil layer. 每样地的物种数量都是以灌木草本层最多，依次为乔木层、枯枝落叶层和土壤层。
- The species in tree layer mainly are plants of Fagaceae, Lauraceae and camelliaceae which are evergreen. 植被组成中，乔木层以壳斗科、樟科、山茶科等常绿树种为主；
- Generally, the order of the magnitude of species diversity was: shrub layer>tree layer>herb layer. 总体来看,栲属群落物种多样性在群落不同层次的变化规律为:灌木层>乔木层>草本层;
- The accumulation of ten nutrient ele-ments of RA system at tree layer was 2214. 22 kg/hm2, which was 1. 46 times of PP system. 乔木层10种营养元素的积累量胶砂间作林为2214.;22kg/hm2，纯胶林为1511
- The complicated vertical structure could be divided into tree layer, shrub layer and herb layer, as well as a definite number of interstratum plants. 群落垂直结构复杂,可分为乔木层、灌木层和草本层,并有一定数量的层间植物。
- The species diversity index of the tree layer was a bit low, and the general trend was shrub layer > treelayer > herb layer. 乔木层物种多样性指数偏低,垂直结构各层次间物种多样性大小依次为灌木层>乔木层>草本层。
- The species richness and species diversity index of the tree layer and shrub layer are obviously bigger than those of the herb layer. 乔木层、灌木层的物种丰富度、物种多样性指数均明显大于草本层。
- The species richness and diversity index of the tree layer and the shrub layer was obviously higher than that of the herb layer, and their evenness had evident difference. 乔木层、灌木层的物种丰富度、物种多样性指数均大于草本层,且差异极显著,群落均匀度差异显著。
- The spatial patterns of E. henryi population mostly conformed to clump distribution, and the tree layer could be easily divided into 3 sublayers in terms of height. 香果树在群落水平结构上整体成聚集分布状态，垂直结构上明显分成3个亚层；
- The diversity, richness and evenness of tree layer and bush layer descended when altitude rose, however, the diversity and evenness of grasses rose from 1 700 m to 1 900 m with rise of altitude, and the richness rose from 1 900 m to 2 700 m. (2 )群落不同层次表现为 :乔木层和灌木层多样性、丰富度和均匀度随海拔升高而下降 ,草本多样性和均匀度表现为上升趋势 ,丰富度下降到 190 0m后开始上升 ;
- As the car hit the tree he was snot out. 汽车扭在村上，他被猛地摔了出来。
- In the light of different layers,the species diversity of tree layer largly increased with succession,while those of shrub layer and herb layer increased first,and then decreased. 从群落各层次来看，乔木层随着演替进程物种多样性逐步升高，灌木层、草本层则先升高后又降低。
- It was found that: (1) In all 17 plots, herb layers had the highest species abundance,and tree layers had the highest species evenness. 结果如下：（）门个样方中物种丰富度指数是草本层最高，均匀度指数是乔木层最高。
- The bird sang high and clearly in the tree. 鸟儿在树上清脆地高歌。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- The annular markings on a tree indicate its age. 树的环形纹理显示其年龄。
- The car hit the tree with a sickening crash. 那辆汽车撞在树上发出让人难受的撞击声。
