物种组成

转基因鱼试验湖浮游生物群落DNA多态性与物种组成关系

DNA polymorphism and species composition of plankton in an artificial lake for breeding transgenic fish

洞庭湖浮游生物群落DNA指纹拓扑结构与物种组成对应关系

Corresponding relations between DNA fingerprinting topological structure and species composition of plankton community in Dongting Lake

混合凋落物的物种组成对其N动态产生了显著的非加性效应。

There were additive and non-additive effects in the mixed litter decomposition , which depended on species composition of the mixed litters .

结果表明Pd颗粒表面覆盖着一些有机碎片，这些碎片主要由C1和少量C2，C3及C3以上物种组成。

The results show that the surfaces of Pd particles are covered by some carbonaceous fragments . These fragments are primarily composed of C1 species .

亚高寒草甸退化减少地上生物量、叶面积指数（LAI）和改变物种组成，因而改变S。

Sub-alpine meadow degradation is expected to change S because of reduced vegetation biomass and leaf area index ( LAI ) as well as changed species composition .

该结果也提供了新的分子遗传证据，支持懒猴属由Ncoucang和Npygmaeus两物种组成。

It also could provide a new molecular genetic evidence to support the view that the genus comprises two species : N. coucang and N. pygmaeus .

DCA分析表明种子库和地上植被在物种组成上具有明显的差异，种子库在物种组成上没有显著的差异。

The DCA ordination results were shown vegetation plots and seed bank plots clearly difference of species composition , but the among seed bank plots was not shown significant difference .

结果如下：将安太堡矿的植物群落演替划分为三个阶段，在第一阶段即复垦初期（1～3a），物种组成较单一，群落结构不稳定，群落层次分化不明显；

The results show that the succession is classified into three stages . In the first stage , the composition of species is simple and the structure of community is unstable .

物种组成改变对S的影响表现为：随着亚高寒草甸的退化，S减少的幅度先大于后小于LAI减少的幅度。

The effects of changes in species composition on S was highlighted by the fact that the reduction in S was firstly more than and then less than the proportional reduction in LAI along sub-alpine meadow degradation gradient .

CCA分析显示影响这5种群落物种组成的主要生境因子有土壤含水率、土壤总氮、土壤总磷、土壤C：N、土壤坚实度。

CCA analysis showed that the effect of community species composition of the five main habitat factors are soil moisture content , soil total nitrogen , total phosphorus , soil C : N , soil compactibility .

但由于缺乏充足的观测和实验数据，加上常绿阔叶林物种组成和属性复杂，造成LANDIS模型参数化比较困难。

However , the parameterization of LANDIS is difficult due to the complexity of species composition and attributes as well as the lack of adequate observation and experiment data of evergreen broad-leaved forest .

洪湖鱼类物种组成及影响因素评价

Fish Species Composition in Honghu Lake and Estimation of Influencing Factors

结果发现：该站物种组成以甲藻和硅藻为主要功能群。

The result shows that the predominant groups were dinoflagellate and diatom .

早春植物层片的物种组成及多样性分析研究

Studies on Specific Composition and Diversity of Early-spring Plant Synusias

天山云杉林土壤种子库物种组成及其垂直空间分布

Species Composition and Vertical Distribution of Soil Seed Bank in Picea schrenkiana Forest

土壤盐分含量变化影响着植物群落物种组成，随土壤盐分含量增加，群落中盐生植物种类逐渐占据优势。

With soil salinity increased , the plant community dominated by halophytes gradually .

北京山区栎林的群落结构与物种组成

Community structures and species composition of oak forests in mountainous area of Beijing

武汉市主城区不同非渗透面比例下植物的物种组成和多样性变化

Variation in Plant Species Composition and Diversity under Different Proportion of Impervious Surface

放牧对草地植物群落物种组成，尤其是优势种，产生了明显的影响。

Grazing obviously changed the plant species composition , especially on dominant plant species .

琼南与琼北沿海低山丘陵植物物种组成的比较分析琼北火山区大地电磁的三维数值模拟研究

Comparative Floristic Composition Study of Coastal Hilly Areas in Southern and Northern Hainan Island

北部湾海域浮游介形类物种组成、丰度分布及多样性

Species composition , abundance distribution and diversity of Planktonic Ostracoda in the Beibu Gulf

乡土植物以木本植物为主，在物种组成上占绝对优势（76.32%）。

Native plants are dominated by woody plants with respect to composition of species .

在景观尺度上，物种组成由区域种库决定。

Species composition of community was determined by regional species pool at landscape scale .

南岭东西段植物群落物种组成及其树种多样性垂直格局的比较

Plant community composition and tree species diversity on eastern and western Nanling Mountains , China

莽山和猫儿山的植被类型差异不大，但相同植被类型的物种组成有比较明显的差异。

Floristic composition , but not vegetation type , differed greatly between these two mountains .

退化植物群落结构及其物种组成在人为干扰梯度上的响应

Changes of Structure and Species Composition of Degraded Plant Community along Disturbance Gradients of Different Intensities

科尔沁沙地草地退化过程中的物种组成及功能多样性变化特征

Changes on Species Composition and Function Diversity in Degraded Process of Grassland in Horqin Sand Land

土壤种子库物种组成和种子密度均以一年生植物为主。

The annual plants dominated the species and soil seed density during sand dune succession process .

每一个群丛的物种组成各不相同，其结构和功能也就有所差异。

Each Association had different species composition , so their structure and function were different too .

内蒙古典型草原物种组成和群落结构对长期放牧的响应

Response of plant species composition and community structure to longterm grazing in Typical Steppe of Inner Mongolia