生物多样性保护与生物资源永续利用          下载免费PDF全文

娄治平  赖仞  苗海霞 《中国科学院院刊》2012,27(3):359-365

通过阐释生物多样性研究的概念,探讨生物资源与生物多样性对人类的重要影响,分析生物资源研究状况、生物多样性研究进展、现代高新生物技术在生物资源利用和生物多样性保护中的应用等,提出了在扩大内需满足我国不断增长的社会需求之时,应注重生物多样性的有效保护机制、长效保护策略研究,为重点物种保护工程提供理论基础和关键核心技术支撑;同时加强具有自主知识产权的生物资源永续利用研发,推动新兴生物产业升级,对现代化生态城市建设、构建资源节约型和环境友好型社会都有重要指导作用。寻求自身发展与自然界和谐相处的可持续发展方式,将是人类发展道路的必然选择。  相似文献   

以质量和创新为导向的人文社会科学学术评价研究     

杨建林  朱惠  潘雪莲  张野 《情报理论与实践》2012,35(5):25-27,40

文章对以质量与创新为导向的人文社会科学学术评价的内涵以及学术质量与学术创新的辩证关系进行探讨,在此基础之上给出一些关于建设以质量与创新为导向的人文社会科学学术评价机制的建议。  相似文献   

基于ESI的中国农业大学植物与动物科学学科竞争力分析   总被引：4，自引：0，他引：4  

李茂茂  张子倩  陈仕吉  左文革 《科技管理研究》2012,32(8):128-132

基于ESI数据,以计量学理论为基础研究了进入ESI前1%(top1%)的中国农业大学植物与动物科学论文数、总引用量及其排名变化和高被引论文情况,并与国内外部分研究机构进行对比分析。从学科生产力、学科影响力、学科发展力、学科创新力四个方面对中国农业大学植物与动物科学的学科竞争力进行了定量分析与客观评价。结果表明,中国农业大学植物与动物科学的学科生产力、学科影响力水平较高,处于快速提升的阶段;学科发展力、学科创新力处于低水平,还需大幅提升。总体来看,中国农业大学植物与动物科学的学科竞争力已经初步形成并处于继续提升中,有望成为世界一流学科。  相似文献   

近十年社科院系统国家社科基金项目统计分析     

蒋晨 《科技管理研究》2012,32(3):190-192,201

根据全国哲学社会科学规划办公室网站公布的国家社科基金项目立项资料,重点分析2001-2010年社科院系统承担的国家社科基金立项的基本情况、特点,借以探讨社科院系统在国家高水平的社会科学研究中的现状及十年间变化状况。  相似文献   

文科综合类实验教学示范中心实验教学问题探讨   总被引：2，自引：0，他引：2  

黎小勇  周仲秋 《湖南师范大学教育科学学报》2010,9(5)

此研究围绕文科综合类实验教学示范中心实验教学课程、教学方法、考核办法以及师资队伍建设等方面的问题进行探讨,并得出了有实践意义的结论。  相似文献   

学习环境的社会结构设计   总被引：1，自引：0，他引：1  

杨南昌  刘晓艳 《远程教育杂志》2010,28(2):19-23

学习科学在学习的社会维度上的强调,要求学习环境的设计超越传统技术中心的设计视界,更加关注学习的社会结构设计。文章概要描述了一个由“文化信念”、“实践”、“社会-技术-空间关系”、“与外部世界的交互”四维度组成的社会结构设计框架,并借此分析了一个智能互动白板技术环境下的课堂社会结构的设计研究案例。研究表明,学习的社会结构是影响整个学习环境设计效果的重要因素,应该引起广大教育技术研究者们的重视与关注。  相似文献   

体育高职院校运动人体科学实验室建设存在的问题及对策     

王庆博  郭朝霞 《中国现代教育装备》2010,(23):21-23

体育高职院校对培养体育行业应用技术型人才起着重要的作用。本文分析了目前多数体育高职院校运动人体科学实验室建设中存在的问题,如经费投入不足、管理体制不完善等,并依据相关文件精神,对体育高职院校运动人体科学实验室建设提出自己的观点,以供参考。  相似文献   

Silicon＇s organic pool and biological cycle in moso bamboo community of Wuyishan Biosphere Reserve   总被引：3，自引：0，他引：3  

Li ZJ  Lin P  He JY  Yang ZW  Lin YM 《Journal of Zhejiang University. Science. B》2006,7(11):849-857

Biomineralization of Si by plants into phytolith formation and precipitation of Si into clays during weathering are two important processes of silicon’s biogeochemical cycle. As a silicon-accumulating plant, the widely distributed and woody Phyllostachys heterocycla var. pubescens (moso bamboo) contributes to storing silicon by biomineralization and, thus, prevents eutrophication of nearby waterbodies through silicon’s erosion of soil particles. A study on the organic pool and biological cycle of silicon (Si) of the moso bamboo community was conducted in Wuyishan Biosphere Reserve, China. The results showed that: (1) the standing crop of the moso bamboo community was 13355.4 g/m², of which 53.61%, 45.82% and 0.56% are represented by the aboveground and belowground parts of moso bamboos, and the understory plants, respectively; (2) the annual net primary production of the community was 2887.1 g/(m²·a), among which the aboveground part, belowground part, litterfalls, and other fractions, accounted for 55.86%, 35.30%, 4.50% and 4.34%, respectively; (3) silicon concentration in stem, branch, leaf, base of stem, root, whip of bamboos, and other plants was 0.15%, 0.79%, 3.10%, 4.40%, 7.32%, 1.52% and 1.01%, respectively; (4) the total Si accumulated in the standing crop of moso bamboo community was 448.91 g/m², with 99.83% of Si of the total community stored in moso bamboo populations; (5) within moso bamboo community, the annual uptake, retention, and return of Si were 95.75, 68.43, 27.32 g/(m²·a), respectively; (6) the turnover time of Si, which is the time an average atom of Si remains in the soil before it is recycled into the trees or shrubs, was 16.4 years; (7) the enrichment ratio of Si in the moso bamboo community, which is the ratio of the mean concentration of nutrients in the net primary production to the mean concentration of nutrients in the biomass of a community, was 0.64; and lastly, (8) moso bamboo plants stored about 1.26×10¹⁰ kg of silicon in the organic pool made up by the moso bamboo forests in the subtropical area of China. Project (No. 30370275) supported by the National Natural Science Foundation of China  相似文献   

农村幼儿园本土生物类课程资源的开发与利用     

王立志 《陕西教育学院学报》2013,(1):119-122

幼儿园生物类课程资源是幼儿园课程资源的重要组成部分,是决定幼儿园科学领域教学内容能否实现的重要因素之一,其开发利用的水平不仅直接影响着幼儿园课程资源建设质量,也关系到幼儿园教学改革实践的顺利进行。从农村幼儿园生物类课程资源开发的理念入手,分析其开发的特征,可以找到农村幼儿园生物类课程资源开发的有效途径。  相似文献   

Hidden voices in higher education: inclusive policies and practices in social science and law classrooms     

Rosario López Gavira 《International Journal of Inclusive Education》2013,17(4):365-378

This paper pertains to a broader biographical-narrative research project which studies barriers and support as identified by students with disabilities at a Spanish University (Barriers and Support That Disabled Students Identify in the University. Project funded by the Spanish Ministry of Science and Innovation (Dir. Dr Anabel Moriña; Ref. EDU 2010–16264, 2010–2014)). The present study focuses specifically on barriers and support identified by students with disabilities enrolled in undergraduate programmes in the Social Sciences and Law. The purpose of this paper is to analyse, from the point of view of disabled students (applying the biographic-narrative methodology), which barriers and which support this group encounters in Higher Education. To this end, findings are organised in the following categories: general institutional data; infrastructure, architectural and accessibility-related data; faculty and teaching-related data; data relating to fellow students; and suggestions for improving the university and/or university classrooms. In the Conclusions section, we return to our earlier discussion of key findings which shed some light on how the University helps or hinders learning among participants in the study. From this perspective, taking as a reference the social model of disability, we conclude that in order to be inclusive, the University needs to commit itself to adopting proactive measures that eliminate the barriers that do not permit the learning and the full participation of the students in question.  相似文献