生态学

The effects of antibiotic barrier (physical and mucilaginous elimination) and joint prevention in the antibacterial immunity system of Eisenia fetida were analyzed in this study by applying animal immunology, ecology and biochemistry. The main results of this study were as the followings.

本研究以动物免疫学、生态学、生物化学为指导思想，以蚯蚓的生态免疫系统为主线，探讨了赤子爱胜蚓的体壁屏障系统(包括皮肤的物理排除作用和随体表粘液分泌排除)和协同防御作用在其免疫系统中的作用。

In this paper, we review recent advances on mucilaginous seeds, with emphasis on （1） chemical composition of seed mucilage;（2） morphological characteristics of mucilaginous seed coats and mucilage;（3） biochemical processes in and genetic regulation of differentiation of mucilage-secreting cells, mucilage biosynthesis and mucilage secretion in the seed coat; and （4） ecological significance of seed mucilage.

为此，在广泛查阅相关文献的基础上，该文综合分析了国内外种子粘液的研究进展，并重点探讨了以下几方面问题：（1）种子粘液的化学成分：（2）粘液及粘液种皮的形态特征：（3）粘液细胞分化与粘液生物合成的细胞学及基因调控机制以及粘液的释放方式：（4）种子粘液的生态学意义。

From the point of view of the symbiosis theory, the tourism symbiosis system of Guanzhong -Tianshui economic region was constructed, and in order to make sure that the system would evolve toward the direction of the symmetrical mutualistic symbiosis, some suggestions were proposed.

本文基于种群生态学中的共生理论，认为共生系统是一种有效的合作组织形式，构建了关中天水经济区旅游合作的共生系统，并就经济区的旅游共生进化提出一些对策建议。

Firstly, an invasive species must be invasive enough in itself or has some biological distinction, such as quantitative and qualitative differences in the genome, or patterns of recombination. Secondly, to invade successfully, a new environment for an invasive species must be invasible, and this we may call the ecological basis of invasion. An invasive species may need to establish new interactions with other species, especially those mutualistic relations such as animal related pollination, seed dispersal by animals, mycorrhizal fungi, and symbioses between plants and nitrogen fixing bacteria.

首先从其自身来说，需要有足够的入侵性，这可以认为是入侵种的生物学基础，可能表现为具有多倍性、一定的遗传变异、杂合性或表型可塑性，以及不同的交配系统等；其次一个物种的入侵成功还取决于入侵生境的可入侵性，这可以认为是入侵种的生态学基础，而新的种间关系的形成，尤其是入侵种与其他种类的互惠共生关系的建成是关键。

The aims of the Cascade Mycological Society are: study fungi; educate members and the public about fungi identification and ecology; promote conservation of fungi; promote health and safety in the gathering and consumption of edible fungi; have fun!

这是客斯客特真菌学会的网站。该学会的目的是：真菌研究；教育其成员和公众对真菌的鉴别及其生态学；促进真菌的保护；提高可食性真菌的采集和消费的安全性；娱乐！

STUDIES ON PHYSIOLOGICAL ECOLOGY OF SHORT- NECKED CLAM Ⅱ.

菲律宾蛤仔生理生态学研究Ⅱ。

Bacillus subtilis str. B5423, Pseudomonas fluorescens str. Pf7-14, nonfluorescent pseudomonads str. P13 are antagonistic to rice sheath blight. Resistance to antibiotic is the character that was chosen to use to mark the strains in order to monitor the population dynamics of the strain on the surface of rice plant and to elucidate the mechanism of suppressing the diseases.

中文题名拮抗细菌的生态学及其对水稻纹枯病的抑制作用副题名外文题名 Ecology of biological control agents and their suppressive effect on rice sheath blight 论文作者李湘民导师许志刚教授苗东华博士学科专业植物病理学研究领域\研究方向植物病害生物防治学位级别博士学位授予单位南京农业大学学位授予日期2002 论文页码总数116页关键词纹枯病拮抗细菌水稻馆藏号BSLW /2003 /S435 /19 Bacillus subtilis B5423，Pseudomonas fluorescens Pf7-14，和非荧光假单胞肝菌Pseudomonas sp.P13是对水稻纹枯病菌有拮抗作用的三支细菌菌株。

By setting the sample and using the optional index of Vanderloeg and Scavia,we have had a preliminary study on the habitat selection of Nycticorax nycticorax at Beihu Park in Nanchong City.

夜鹭作为世界广布的夜行性鹭科湿地鸟类，在鸟类研究中占据重要位置，其生态学研究一直受到各国鸟类学家的重视。

The spatial planning on the watershed may help implementing ecosystem management. The related concepts applied in the planning included the model, advocated by Odum regarding the environments that human need, ecosystem classification, landscape ecology and ecological integrity, etc.

本研究的流域空间规划能帮助生态系统管理的实行，而规划所用的观念，包括：Odum提出的四种人类需求环境模型、生态系统分类、地景生态学以及生态完整性等。

The authors analyzes the function change of urban in its evolvement and the eco\|environmental problems caused by this change.Based on this analysis and the method of systems ecology founded by Odum H T,the authors discuss the aim and the principle of urban eco\|environment planning under the sustainable development;put forward the general view of urban eco\|environment planning in which the kernel is the adjusting of industry structure,land\|use structure and spatial pattern;construct the dynamic simulatin...

在剖析城市演化历程中的功能变迁与导引的生态环境滞胀类型和危害的基础上，着重利用系统生态学的原理和方法，探讨了可持续发展要求下的城市生态环境规划的目标、原理和研究的内容、方法及过程；提出了以产业结构、土地利用结构和空间格局的调整为核心制定城市生态环境规划的总体思路；创造性地融大气扩散、雨水沉降和植被吸纳SO2 ，NOx 及TSP等污染物模型与经济、人口和碳氧平衡等模型于一体，构建了案例城市广州的生态环境综合调控模型，并借助DY NAMO语言模拟得到了广州市未来生态环境规划的优化方案。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。