生物多样性

Applying quadrat method,the vegetation of Yanchi county of Ningxia Ningxia Hui Autonomous Region was investigated to study the influence of different fencing time on community structure and biomass.

在宁夏自治区盐池县人工封育区采用样方调查法对不同封育年限封育区植被的群落结构和生物量进行调查分析，并运用丰富度指数、均匀度指数和综合性多样性指数分析生物多样性变化。

Based on the relationship between species and area,the rarefaction is an effective method for assessing the biodiversity in a regional scale.

在生物多样性保护实践中，多样性指数常被用来作为评价群落或生态系统状况的重要指标〔1-5〕，从而为制定保护对策提供依据。

Microorganism ' s extremely abundant bio-diversity has determined they have supersession type and supersession result variety , and there are close relations with the mankind , animals and plants and environment , make microbiolody become and use a door of very active disciplines in research field .

微生物极其丰富的生物多样性决定了它们具有代谢类型与代谢产物多样性，并又与人类、动植物和环境有着密切的关系，使得微生物学成为应用研究领域里一门十分活跃的学科。

In this review the current status of endophytic fungi in tropical area, resource diversity and host preference were focused on.

简要介绍了热带地区植物内生真菌研究概况、资源多样性、寄主选择，并对热带内生真菌生物多样性的发展前景作了分析。

The journal dedicates to the studies of the taxonomy, phylogeny and evolution of botany. Research areas mainly include plant diversity conservation, molecular phylogenetics, population biology, morphology, biodiversity, herbaria and nomenclature etc.

该刊致力于植物学的分类学、系统发生和进化方面的研究，研究领域主要涉及植物多样性的保存、分子系统发生学、种群生物学、形态学、生物多样性、干燥标本集以及命名法等等。

In this paper , the species resources and genetic diversity of lac insects were briefly introduced , and

本文将在紫胶虫物种、遗传多样性和生态环境的基础上讨论紫胶虫生物多样性

Based on the systematic research on investigation and taxonomy of Botany and Zoology as well as application of the indigenous knowledge to utilization and conservation of biodiversity, the families and species of mammals, distribution types and habitat distribution of birds, and faunas of amphibian and reptiles, types and characteristics of the fish in the area were investigated and analyzed.

基于系统的植物学和动物学调查和分类学研究，以及乡土知识在生物多样性的利用和保护方面的应用，对分布于保护区的哺乳动物的科和种、鸟类的分布类型和生境分布、两栖和爬行动物的区系、鱼类的类型和特点作了调查分析，讨论了分布于保护区的陆生和水生动物、动物的生态系统和多样性特征。

Logistic model was used to model tree mortality of Pinus tabulaeformis based on the data from 105 remeasured plots in Beijing.

同时，林木枯损率在维持种群动态变化、生态系统生物多样性和结构多样性等方面也起到了重要的作用。

Conservation and research of desert plant diversity is an important part of the biodiversity protection.

荒漠植物多样性研究及其保护是生物多样性保护的重要组成部分。

By bio-diversity we mean the variety of the species of animals and plants, genies and ecosystem of the earth.

我们所说的生物多样性，指的是地球上动植物物种、基因和生态系统的多样性。

We will see more and more activist government policies that distinguish economic activities according to the nationality of the actors.

我们将看到越来越多激进的政府政策，这些政策根据企业的国籍来区分经济活动。

If we can prove the independence of an axiomatic system, then we can guarantee the conciseness of this system, ie.

如果能够证明某个一阶谓词系统的独立性，那么就能够保证该系统的建立是精炼的，即没有任何一条公理或推理规则是多余的。