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The background survey and tracking survey of artificial reef area in Chenghai Laiwu were carried out before and after reefing in 2003 and 2007, respectively. The results indicated that after the deployment of artificial reefs, the biomass density of fishery resources increased by 25.63 times, which were much higher than before. The resources species was much more abundant; total number increased from 23 to 41, which increased by 0.78 times. The crab resources sharply increased by 1.75 times after artificial reef were deployed. Harpodon nehereus and Portunus sanguinolentus , which did not appeared in background survey, now became the dominant species in tracking survey. There were high diversity indexes in artificial reefs area and control area in tracking survey. In conclusion, the results indicated that the fish-aggregating effect of artificial reef site has improved a lot, and the community structure and the habitat environment have been significantly improved.

摘 要:2003和2007年分别对澄海莱芜人工鱼礁区进行了投礁前的本底调查和投礁后的跟踪调查,结果表明,投礁后礁区海域游泳生物的资源密度明显比投礁前高,增加了25.63倍;礁区海域各类资源种类均比投礁前丰富,总种数由投礁前的23种增加至41种,比投礁前增加了0.78倍,其中,蟹类种数增加最多,增加了1.75倍;在本底调查中没有出现的经济种类龙头鱼 Harpodon nehereus 和红星梭子蟹 Portunus sanguinolentus 在跟踪调查中已成为主要优势种;Shannon-Wienver多样性指数在礁区和对比区均比投礁前有所增加。

This essay mainly focused on the analyzation and discussion of how to enhance the management of science and technology information of high education , and to develop and utilize the resource of science and technology information reasonably, straining to make full use of it, to make high education to be the collecting and distributing center of science and technology information, boosting the development of economic society of the nation and the region and cultural advancement.

决定一个国家、一个地区经济高速发展的因素之一,就是在于具有丰富信息资源,并能充分利用信息的作用。如与我国一衣带水的日本是一个资源缺乏、土地面积狭小的国家,但是由于重视开发与利用信息

Information Resource Planning is the basal project of an enterprise s information system construction, which origin is Information Engineering Methodology.It emphasizes particularly on strategic data planning and absorbs a lot of experiences from Information Resource Management and Data Adiministration.It also combines practice of many large or medium domestic information construction projects.Then it has developed a complete set of system including theory, method and tools by the principle of science, brachylogy and practicality.

信息资源规划是企业信息化建设的基础工程,源于信息工程方法论,侧重于战略和总体上的数据规划,并大量吸收信息资源管理和数据管理等诸多方面的理论和经验,同时结合了国内许多大中型信息系统建设项目的丰富实践,本着科学、简明并实用的原则,发展成为理论、方法和工具相结合的一整套体系。

There exists extraordinarily affluent literature of historical earthquake.Currently,we inadequately utilize macro phenomena of earthquake and isoseismal,therefore,further explore the source of historical earthquake,and emphasize the uncertainty of epicenter and magnitude of historical earthquake.Since 1970,along with the advancement of observational technique, we greatly improve seismic observational accuracy,and moderate and small seismic data recorded by instrument is more and more sufficient.

历史地震的文献资料异常丰富,但是对地震宏观现象及等震线的利用显得不足,历史地震资源还待进一步开发;而且历史地震震中位置和震级的不确定性问题需要注意。1970年以来,由于观测技术的提高,地震观测精度得到很大程度地改善,仪器记录的中小地震资料也越来越丰富。

Drawing on the rich experience of our primary and secondary KB teachers in KLAs such as primary school general studies and extra curricular activities, secondary level languages studies, liberal studies, sciences and humanities etc, the project teachers and the project team will highlight their insights and give pointers to the various resources in the professional development website.

参与本计划的老师及研究小组成员,将引用他们在中小学不同学习领域,例如小学的常识科和课外活动,以及中学的语文教育、通识教育、科学、人文教育等方面的丰富经验,重点介绍他们的心得,并演示上述为知识建构老师而设的资源网站内的各种教学资源。

SSR markers are used to do cluster analysis on 100 snap bean germplasms which divided into 6 groups.

利用SSR标记的多态性对100份菜豆种质资源进行聚类分析,根据聚类分析结果,所有供试材料在相似系数为0.33~1.00范围内聚在一起,在阈值0.54处可将所有的种质资源分成六个组群,第一组群主要是由肉质脆的蔓生菜豆构成,这一组群的遗传背景丰富。

This paper reviews the recent progress on the Chinese syntheic research of marine natural products according to type classifications: marine cyclopeptides, cembranes, cembrenss, cembranolides, quinolone derivativcs, triacetonamine and subergorgic acid analogues.

由于海洋中的生物资源非常丰富,海洋中的生态环境与陆地显著不同,因此海洋天然产物具有独特的化学·结构和多种多样的生理活性。对这些物质的合成进行深入地研究,必将丰富天然产物化学的内容,促进有机化学基础

Based on premising the traditional function of water resources and ensuring socioeconomic development and security of residential environment and sustainable development of urban water resources,it is ...

在发挥水资源传统功能的前提下,在保障城镇社会经济发展和人居环境安全、水环境资源可持续发展的基础上,根据城镇自然环境、社会经济发展水平、城市的发展定位、城镇经济产业格局与结构、城镇经济发展规划等个性特点,遵循城镇居民的享受意愿选择,规划布局城镇的水体景观资源,建设城镇居民的水体景观休闲娱乐设施,丰富城镇水生态景观效应,是当前我国城镇规划建设的重要内容,也提升城镇生活品质的重要途径。

The results showed:(1)Nitrogen addition changed the soil physical and chemical properties, enhancing the content of NO3—- N available resources in the soil, increasing the plants height and cover, reducing the vegetation light penetration. With increasing of N addition, both the species richness and the diversity decrease sharply (P 0.001).(2)N addition increased the aboveground biomass significantly (P 0.05). With increasing of N addition, the aboveground biomass increased first then decreased, and the grasses biomass increased while the forbs and legumes biomass decreased.(3)There was a significant linear positive relationship between species richness and vegetation light penetration (P 0.05), and also between aboveground biomass and soil NO3—- N content (P 0.05). The relationship between aboveground biomass and species richness was negative upon enhanced N supply.

结果表明:(1)氮素添加提高了土壤中NO3—- N等可利用资源的含量,增加了植物群落植被的盖度,减小了植被的透光率,随着施氮量的增加群落中物种丰富度显著降低(P 0.001);(2)氮素添加显著改变了植物群落地上生产力(P 0.05),随着施氮量的增加地上生产力呈现先增加后降低的变化趋势,各功能群中禾草生物量显著增加,而杂草和豆科生物量随施氮量增加逐渐减少;(3)物种多样性与植被透光率呈线性正相关(P 0.05);地上生产力与土壤NO3—- N含量呈线性正相关(P 0.05);随着施氮量的增加物种丰富度与生产力之间呈负相关关系。

A: Partially yes. Natural resources are rich in varieties. China, however, presently only levies the Resource Tax on those businesses engaged in the exploitationof taxable mineral products and the production of salt. Tax is computed on the basis of the quantities of taxable resources sold or self-consumed.

不全对。自然界中的资源极为丰富,目前中国开征的资源税是对在我国境内开采应税矿产品及生产盐的单位和个人,就其应税资源销售数量或自用数量为课税对象而征收的一种税。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。