生态群落

Anaerobic synecology of the hydrogen-producing fermentation system was investigated under certain test condition in this thesis. In the continuous flow system of anaerobic hydrogen-producing fermentation, the succession of hydrogen-producing acidogenic microbiology may be regressive process. By regressive process we means that the original community getting from nature which structure being complex with a high ability would degenerate gently to a certain climax community which structure being simple with less ability.

产氢发酵系统的微生物群落生态学研究证明，在连续流发酵产氢反应系统中产氢产酸发酵细菌群落的演替过程，是在人为控制的生境条件下，微生物从自然群落这种稳定性大、组成及生化反应过程复杂的生态群落，向稳定性小、组成和生化反应过程相对简单的某一产酸发酵顶极群落进行的"逆行演替"。

The Journal of Vegetation Science publishes papers on all aspects of vegetation science, with particular emphasis on with that papers including theory, methodology, spatial patterns (including plant geography and landscape ecology), temporal changes (including palaeoecology and demography), processes, and description of ecological communities (by phytosociological or other methods), provided the focus is on increasing our understanding of plant communities.

植被科学杂志》发表有关植被科学方面的论文，着重于理论、方法论、植物地理学和景观生态学研究的空间模式，古生态学和人口统计学中的时空变化，生态生理学中的过程和植物社会学中的生态群落描述等方面内容，目的在于提高人们对植物群落知识的认识和了解。

The most worrying result was the reshuffling of ecological communities-species that live together.

最令人担心的结果是，生态群落—居住在一起的物种—的重组。

The most worrying result was the reshuffling of ecological communities-species that live together.

科学家在墨西哥进行研究，因为那里的生物具有多样性，最令人担心的结果是生态群落——居住在一起的物种——的重组。

It is found that (1) the aquatic protozoa communities consists of thirty-six taxa in twenty-six genera and twenty-four families;(2) the groups of ecological function include: Photosynthetic autotrophs (P groups, 25%), Bactivores detritivores (B groups, 44.44%), Saprotrophs (S groups, 2.78%), Algivores (A groups, 11.11%), Nonselective omnivores (N groups, 11.11%) and Raptors (R groups, 5.56%);(3) according to the characteristics of karst water, substrates and mosses, four ecological types and eight sub-types of aquatic protozoa communities can be distinguished.

2水生原生动物群落含6个功能营养群。其中，原生动物光合营养群（P群，Photosynthetic autotrophs），占总数的25%；细菌取食者群（B群，Bactivores detritivores），占总数的44.44%；腐生营养类群（S群，Saprotrophs，占总数的2.78%；食藻者类群（A群，Algivores），占总数的11.11%；非选择性杂食者群（N群，Nonselective omnivores），占总数的11.11%；食肉者群，占总数的5.56%。(3)根据岩溶水流、基质和藓类植物特征，划分该区附生水生原生动物生态群落为4个类型和8个亚类型。

A group of interacting organisms that live in a particular habitat and form an ecological community.

生物群落一组生活在特定栖息地且形成一生态群落的一组相互影响的生物

The selection of the plants in the water and soil conservation should adhere to the principle of panting suitable trees in suitable places,emphases the diversity of the tree species,make the arbors and bushes be mixed and matted with the herbages for meeting the natural growing regularities and forming a long-term and stable ecological community.

水土保持中植物的选择，要根据适地适树的原则，强调树种多样化，使乔木和灌木混交并与草本植物搭配，符合自然生长规律，形成长期稳定的生态群落。

TAis primary, SHEI(Shannon's Evenness Index)is the second, LNPis the third. This result provides the reference resources in the farm ponds that ecological community the investigators is unable to reach.

分析结果同时显示景观层级指数对生物多样性热点之影响力，以TA为首要，其次为SHEI(Shannon均匀度指数)，再者为LNP，此结果将可作为调查人员较无法到达、可及性也较低之农塘生态群落情况参考依据。

Based on the research on the evolution mechanism of information ecological communities,and by the use of the system development view and the related theories of complex systems,this paper redivides the evolution process into formative process,linear evolution process,non-linear evolution process and dissolution process according to the essential characteristics of information ecological communities.

本文在信息生态群落演化机理的研究基础上，运用系统发展观和复杂系统的相关理论，根据信息生态群落演化过程的本质特点，对演化过程进行了重新划分：信息生态群落的结体创生过程、线性常规演化过程、非线性超常规演化过程和分化解体过程。

Based on the research on the evolution mechanism of information ecological communities,and by the use of the system development view and the related theories of complex systems,this paper redivides the evolution process into formative process,linear evolution process,non-linear evolution process and dissolution process according to the essential characteristics of information ecological communities.

李北伟；靖继鹏；王俊敏；刘智喜本文在信息生态群落演化机理的研究基础上，运用系统发展观和复杂系统的相关理论，根据信息生态群落演化过程的本质特点，对演化过程进行了重新划分：信息生态群落的结体创生过程、线性常规演化过程、非线性超常规演化过程和分化解体过程。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。