tree layer造句
例句与造句
- 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。 - Effects of selective cutting of different intensities on the tree layer structure and species diversity of evergreen broadleaved forest
择伐作业对常绿阔叶林乔木层树种结构及物种多样性的影响 - Effects of different intensities of artificial disturbance on tree layer of castanopsis carlesis forest using method of diversity measure
多样性的测度方法探讨不同人为干扰强度对米槠林乔木层的影响 - The vertical structure of each forest community were obvious and could be divided into tree layer , shrub layer , herbage layer and lianas
各群落垂直结构十分明显，可分为乔木层、灌木层、草本层和层间植物。 - 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。 - It's difficult to find tree layer in a sentence. 用tree layer造句挺难的
- 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 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 multilayer films instead of the single ito films were deposited to reduce the sheet resistance of films . the multilayer structure consisted of tree layers , ito / ag / ito
最后,制备了由商用ito膜、自制的单层ito膜和ito / ag / ito复合膜作为阳极的oled器件,并对三种oled器件的性能进行了比较。 - There were 66 species in the community 3 ( castanopsis fargesii + schima superba - itea chinensis - maesa japonica community ) , and castanopsis fargesii and schima superba were the dominant species of tree layer , and itea chinensis and symplocos sumuntia were the dominant species of succession layer , and maesa japonica and ardisia japonica was the dominant species of regeneration layer
采用物种数、 m雌alef丰富度指数、 simpson和shannon一wiener多样性指数、 simpson和shannon一wiener均匀度指数对黄茵岭生态保护小区森林群落多样性进行测定，结果表明该地区有较高的物种多样性。 - There were 71 species in the community 2 ( castanopsis fargesii - itea chlnensis - maesa japonica community ) , and castanopsis fargesii and itea chinensis were respectively the absolute dominant species of tree layer and succession layer , maesa japonica was the dominant species of regeneration layer
群落次生天然演替过程是以地带性植被壳斗科、茶科、冬青科等物种为主。总体上黄茵岭生态保护小区群落种子植物属的分布类型是以热带分布成分占绝对优势，种子植物以热带起源为主。 - The results were following : ( l ) generally , all four indices showed the similar variation patterns in species diversity ; ( 2 ) generally speaking , the order of species diversity indices changed with the pattern : shrub layer tree layer herb layers ; ( 3 ) the species diversity of evergreen broadleaved forests was larger than that of warm conifer forests ; ( 4 ) the species diversity of forests in meizi lake area has been affected by human factors
结果表明： ( 1 )梅子湖森林植被样地物种多样性测度的结果，上述4种指标总体上表现出相同的变化趋势。门）总体看来， 14个样地的物种多样性指数在群落不同层次的变化规律为：灌木层乔木层草本层。 （ 3 ）不同植被类型的物种多样性特征是：常绿阔叶林暖性针叶林。 - There were 83 species in the community 4 ( castanopsis sclerophylla - camellia oleifera - maesa japonica community ) , and castanopsis sclerophylla , castanopsis fargesii and schima superba were the dominant species of tree layer , and camellia oleifera , itea chinensis and symplocos sumuntia were the dominant species of succession layer , and maesa japonica was the absolute dominant species of regeneration layer . there were 76 species in the community 5 ( castano
用物种重要值代替物种多度来测定物种多样性，结果表明: margalef丰富度指数随着群落层次的物种数增加而增加，与群落各层次的个体数无关，各群落的乔木层的simpson多样性、 shannon一wiener多样性、 simpson均匀度、 shannon一wiener均匀度4个指数一般小于其演替层的相应指数，演替层与更新层的相应指数之间无必然大小关系。 - The species richness and diversity index order of coniferous and broad - leaf forest and evergreen broad - leaf forest in different geology plots was as follows : shrub layer > herb layer > tree layer ; in shrub plots , the order was herb layer > shrub layer . in general jsw , jsi and ea index order was herb layer > shrub layer > ree layer . that indicated that the species of tree and shrub in karst area distributing is not even , and the species , which are dominant and adapt to the karst environment are cleaer
不同地区样地针阔混交林和常绿阔叶林物种丰富度指数、多样性指数均表现为灌木层草本层乔木层，而在灌丛样地，物种丰富度和多样性指数表现为草本层灌木层；整体上，石灰岩地区样地jsw 、 jsi和ea指数为草本层灌木层乔木层；砂页岩地区样地为灌木层草本层乔木层。 - The results shows that the community richness , species diversity indices and evenness of tree layer and shrub layer share the same order , of which is higher in pure limestone region than that of in pure dolomite region , but it reverse in herb layer ; the coefficient of similarity is considerably low between all plots , while species turnover rate is quite high among the plots and is higher in dolomite region than that of in limestone ; in different karst regions , karst processing leads to niches diversity characterized by special morphologies and special element geochamical features , and therefore affect the dynamic and features of plant communities
我们在最有代表性之一的贵州茂兰喀斯特森林保护区选取纯灰岩和纯白云岩两种岩性的喀斯特环境，对其元素地球化学特征及其中原生性植物群落的相异性和物种多样性进行了对比，结果发现：不同岩性区域多样性：乔木层和灌木层为纯灰岩区纯白云岩区，草本层为纯白云岩区纯灰岩区，总体上纯灰岩区的高于纯白云岩区的；各样地间的相似性系数都很低，相同岩性类型内的明显高于不同岩性类型之间的相似度；物种周转率高，且白云岩区高于石灰岩区，种类组成差异明显；喀斯特区可溶岩地球化学背景通过喀斯特作用导致特殊的地形条件与元素地球化学特征，并引起局部小生境的分异从而影响植物群落特征。 - The research result is following : the annual species richness index of studied forest plant community averaged 64 . 688 , the species diversity index was 2 . 982 . the proportion of every functional group of forest plant community is : herbaceous layer ( average is 68 . 89 % ) > tall tree layer ( average is 15 . 266 % ) > shrub layer . ( average is 15 . 845 % ) the proportion of every functional group in forest insect communities is remarkably different , and the order of the proportion is herbivorous insect group ( average 0 . 729 ) > predatory natural enemy insect group ( average 0 . 136 ) > parasitical insect group ( average 0 . 135 ) . with seasonal change , the proportion of herbivorous and predatory insect group decreased obviously , while that of parasitical insect group increased on average by 147 %
研究结果如下：森林植物群落种的全年物种丰富度指数平均为64 . 688种，多样性指数为2 . 982森林植物群落内各功能类群物种所占比重依次为：草本层(平均为68 . 89 ) >乔木层(平均为15 . 266 )灌木层(平均为15 . 845 ) 。森林昆虫群落中，全年各功能类群所占比重以植食性昆虫类群为最大，平均占0 . 729 ；捕食性昆虫类群次之，平均占0 . 136 ；寄生性天敌类群为最小，平均为0 . 135 。
更多例句： 下一页