查询词典 species diversity

Gleditsia heterophylla ; richness indices ; evenness indices ; species diversity indices ; community type and structure

野皂荚；丰富度指数；均匀度指数；物种多样性指数；群落类型和结构

The detection and analyses of Gordonia populations within complex microbial communities were achieved precisely and rapidly by PCR-DGGE method and provide better assessment of the species diversity of Gordonia in the environment.

此外利用菌属特异性引子配合变性梯度凝胶电泳，成功应用至泡沫污水中Gordonia族群之分析，未来将探讨Gordonia在环境中之族群多样性。

On the basis of investigation data collected from 20 plots of the fixed dunes and the semi-fixed dunes in Wulanbuhe desert characteristics of species diversity and spatial distribution pattern of Hedysarum scoparium population were investigated.

根据乌兰布和沙漠固定沙丘和半固定沙丘20个样方的调查数据，对不同生境中花棒群落物种多样性及其种群空间分布格局进行了研究。

With the deflected succession of aquatic ecotype plant functional group,the dominance of mesophytes and xerophytes increased,while the dominance of aquatic and hygric plants decreased. However,there are only planting crops in the reclaimed wetland. In the composition of plant biotype functional group,the hydrophytes reduced quickly with the deflected succession and the dominance of perennial herbs is mostly marked,and there are only annual herbs in reclaimed wetland. Compared with primary swamp,the species diversity index of meadow is the highest,the swampy meadow follows,and the reclaimed wetland is the lowest.

植物的水分生态型功能群组成随湿地的逆行演替，水生、湿生类植物功能群的优势度不断减少，中生、旱生类植物功能群的优势度逐步增加，而在垦后湿地只有农作物；植物生活型功能群组成随湿地的逆行演替，水生草本迅速减少，陆生多年生草本增加占据优势，而在垦后湿地均为一年生草本；湿地植物物种丰富度、多样性指数由原生沼泽、沼泽化草甸到草甸依次增加，草甸为最大值，而垦后湿地则最低。

The Kalidium cuspidatum community was not stable and it preponderant tree was declining because of the lower index of species diversity and higher index ecological dominance.

盐爪爪群落物种多样性指数低，而生态优势度高，群落不稳定，盐爪爪种群处于衰败阶段，也是不稳定的。

Sition , life form spectrum, species diversity and richness of the tropical monsoonal evergreen broad2leaved

结构、种类组成、生活型构成、多样性、种面积关系等进行了分析研究，结果显示：西双版

It shows that total species diversity of mycorrhizal fungi isolated from R.

其它菌根菌如：Neonectria radicicola等在前人的研究中未见报道。

In China, the species diversity of Myxomycetes in the north temperate regions is well known, but that in the tropical and subtropical regions is still inadequately known and will become a key research point in the future.

研究表明，中国北温带地区粘菌多样性比较明了，但热带和亚热带地区的物种多样性研究是滞后的，不过这也是此领域在未来研究的重点。

The soil water content、available phosphorus、soil bulk density、total porosity、noncapillary porosity、total nitrogen also affected the species diversity.

土壤含水率、有效磷含量、土壤容重、孔隙度和全氮含量也对草本层物种多样性有一定的影响。

Orchidaceae ; geographical zone ; species diversity ; Fujian Province

兰科植物；地理分区；物种多样性；福建省

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。