查询词典 species diversity

Despite its higher index of species diversity, the Reamuria soongorica community was not extremely stable because it had lost its ability of multiplying and resuming, it would be replaced by the community composted of herbages.

红砂群落草本层物种发育良好，导致多样性指数较高，但红砂种群是一个极不稳定的种群，已完全丧失了繁殖能力和恢复能力，取而代之的是以草本植物为主的群落。

The soil desiccation as a soil degradation is existed widely in the artificial forest of hot-dry river valley, for instance the simple community structure, the low plant species diversity and a long time - soil desiccation.

干热河谷现有的人工林植被普遍存在土壤干化的土壤退化形式，群落结构简单，植物物种多样性低，土壤水分长时间亏缺。

Abundance index and other indicators of forest Mangdangshan Mountain Nature Reserve, and a comparative analysis of species diversity.

福建南平茫荡山与万木林森林群落物种多样性比较分析摘要本文以物种多样性指数、均匀度、丰富度指数等指标对茫荡山与万木林自然保护区的群落物种多样性进行比较分析。

The effects of ECM fungal inoculations and species diversity in the inoculums on the growth of containerized seedlings were determined in Chapter Four.

在第三章中，我们应用点格局的分析方法和二元逻辑回归分析对外生菌根真菌的主要类群，即鹅膏菌科，牛肝菌科和红菇科，的空间格局及其与周围（5×5米样方）树种组成的关系进行研究。

The fungi are one of the great groups of living organisms, comparable in numbers of species, diversity and ecological significance with animals, plants, protists and bacteria.

菌，菌是伟大的许多活著生物 Living beings 体之一，在许多种类，差异和生态的意义用动物，植物，protists和细菌方面可比较。

However, the research on the species diversity of soil nematodes and

然而， 有关土壤线虫的多样性与土壤生态系统

This paper investigates over the change of species diversity of Pinus massoniana secondary plantation caused by its low-intensity surface fire.

采用样地调查法对低强度地表火干扰样地马尾松次生林的物种多样性进行了调查。

Three types of community of 5000m^2, where herbaceous scrub, shrub forest and evergreen broad-leaved forest were damaged by M. micrantha, were established in the Country Park of Hong Kong. The herbicide sulfometuron-methy concentration 0.05~0.1 gm^(-2 was tested to Kill M. micrantha. The effect of herbicide sulfometuron-metny killing M. micrantha and its influence on other plants and species diversity in communities were analyzed.

在香港郊野公园内选择薇甘菊危害较严重的草灌丛、灌木林和常绿阔叶林3种群落类型，设置样地5000平方公尺，用0.05~0.1gm^(-2)嘧磺隆对样地中的薇甘菊进行化学防除试验，并在施用除草剂后3、5和14个月跟踪调查施药对薇甘菊的杀灭效果以及对样地中其他植物和群落物种多样性的影响。

The productive capacity and species diversity,etc.are controlled by upper canopy and in a dynamic change.

生产能力、物种多样性等指标受上层体冠控制，并常处于一种动态变化之中。

Our results showed that sampling scale and region should be taken into account when studying species diversity in this 20ha monsoon evergreen broadleaved forest.

本研究结果表明在分析鼎湖山季风常绿阔叶林20ha样地物种多样性时应考虑尺度效应和取样区域。

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。