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The diversity index and species richness index of original vegetation in Karst area are lower than in nonkarst area. 石灰岩地区原生植被生物多样性和物种丰富度指数较砂页岩地区的原生植被低。
Species richness indices 物种丰富度指数
The richness index and the evenness index of the species have a similar trend, that is, forestland is the highest and eroded land the lowest. 物种的丰富度指数、均匀度指数也有类似规律。也就是说,芽孢杆菌属内物种多样性程度最高的是林地,最低的是侵蚀地。
Species richness was generally low in all shrub communities. 各类灌丛之间物种丰富度指数相差不大。
In complex bactaria The species richness of PSB is obvious. 在复合菌群中,光合细菌的优势度明显。
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 results showed that the species richness,individual abundance,PFU colonization rate,and especially bio diversity index were useful for indicating the water quality. 原生动物群落的种类数、密度、生物多样性指数、集群速度均能反映水质状况。
Species richness of shrubland in the Project Area is considered very low. 工程项目区内的灌木丛的品种丰盛程度非常低。
For soil and humus bryophytes, the species richness is highest in dark conifer forest,Shannon index is highest in Larix olgensis-bogs and dark conifer forest. 地面生苔藓植物的物种丰富度以暗针叶林(dark conifer forest)最高，而多样性以落叶松-沼泽地(Larix olgensis-bogs)和暗针叶林为最高；
LIN Yu-chang Area Serai, intertwined vines and plant species richness. 景区林郁苍茏，藤蔓交织，植物物种丰富。
On S. grandis+L. chinensis, the richness index and Shannon-Winner index of the communities were the highest, while the Simpson index was the lowest. 大针茅+羊草群落的物种丰富度指数、物种多样性指数最高，优势度指数最低。
In all hassock communities, species richness was high in ruderals but was low in typical degraded hassocks. 杂类草草从具有较高的丰富皮指数，而演替到较为稳走的退化草丛物种丰富度指数呈下降趋势。
The species richness of herb layer was fitted in the topographic and soil feature factors, as well as the topographic relative moisture index (TRMI) by the generalized linear models (GLM). 通过广义线性模型(generalizedlinearmodels,GLM)拟合了草本层物种丰富度与地形因子、土壤因子以及地形相对湿度指数(TRMI)之间的关系。
The moth diversity obviously decreases with increasing elevation, and the diversity index, species richness and individual number of Korean pine broad-leaved forest are the highest, and those of alpine zone are the lowest. 苔原带物种丰富度、个体数和多样性指数最低，多样性指数与丰富度和均匀度相一致，相关系数都大于0.;9。
Species richness and evenness were unrelated to similarity in species composition. 物种丰富度和均匀度均与物种构成上的相似性没有显著相关关系。
But it looks as though their species richness is caused by the same underlying mechanism. 但看上去，它们的物种丰富性是由同一种潜在的生物机制所产生的。
Based on the inquisitional data of sampling sites,the biodiversity of the natural plant community in Aral area is analyzed by adopting diversity index, richness index and evenness index. 根据对样地的实际调查资料,采用物种多样性指数、丰富度和均匀度指数对塔里木河上游阿拉尔地区的天然植被的物种多样性进行了分析。
The average species richness was 42.9 for forest, 15.96 for shrub, and 17.89 for hassock communities. 6个岛屿的植物种数分别为126、157、175、189、242、254；其中森林群落的平均物种丰富度指数为42.;19，灌、草从分别为15
Based on the inquisitional data of sampling sites, the biodiversity of the natural plant community in Aral area is analyzed by adopting diversity index, richness index and evenness index. 根据对样地的实际调查资料，采用物种多样性指数、丰富度和均匀度指数对塔里木河上游阿拉尔地区的天然植被的物种多样性进行了分析。