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广西北部湾海产资源丰富,生态环境多样化.而北部湾的过度开发,给广西沿海的海洋生态环境带来了不良影响,近岸海域水质的污染影响与破坏海洋生物资源生存环境,海洋过度捕捞、海水养殖扩大,影响与破坏海洋生态环境,海洋资源综合利用与管理的欠缺,阻碍了海洋生态环境的可持续发展.对广西北部湾海洋生态环境的保护对策:一是地方政府加强海洋生态环境保护的立法和规划;出台了一系列治污与减排措施;增强海洋生态环境保护意识,改变海洋生态环境保护理念;二是钦州学院为北部湾海洋生态环境保护提供基础和交流平台. 相似文献
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1．加强海洋生物基因资源的研究 有利于保护海洋生物多样性;进一步探究海洋生命的奥秘;发掘海洋生物基因,有利于保护海洋生物资源;从海洋生物的功能基因入手,有助于培育出优质、高产、抗逆的养殖新品种,从根本上解决海水养殖生物“质”、“量”和“病”的问题;开发海洋基因工程新药,部分解决海洋药源问题。 相似文献
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教学目标《海洋生物》属于三年级下册第三单元《生物大家族》中的内容。本课旨在通过一系列活动的教学,让学生深入研究海洋生物的生活习性,以及环境对生物习性的影响。教材以海洋生物的形态结构及其生活习性与环境相适应的特点为重点。本课教学目标如下:1.能够通过查阅书刊及其他信息源,搜集有关海洋及海洋生物的信息,能通过交流与观察分析探究海洋生物与海洋环境的适应性特征。2.了解各种各样的海洋生物,了解更多的海洋生物在形态方面适应环境的具体实例,了解环境对生物生长、生活习性等多方面的影响。3.感受海洋世界的多样性,欣赏各种美丽… 相似文献
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全球性的气候变暖不仅加速了陆地上的荒漠化速度,同时也使得“海洋沙漠”的面积在迅速扩张。被称为“海洋沙漠”的海域,其主要特征是海水表层的叶绿素含量极低,通常每立方米表层海水的叶绿素含量在0．07毫克以下。在“海洋沙漠”中,海水表层含叶绿素的生物如藻类等几乎绝迹,因此,很难为中下层海域的生物提供足够的食物营养来源。在这类海域的生态系统中,初级生产者的数量和种类极少,食物链接近断裂,基本呈现出一派死寂。 相似文献
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1.赤潮指海水中某些微小的浮游植物、原生动物或细菌,在一定环境条件下突发性地增殖和聚集,引起一定范围内海水在一段时间内变色的现象.赤潮发生的原因有:海域水体高营养化;某些特殊物质参与为诱发因素;环境条件改变,如水温、盐度等变化.赤潮对海洋环境、海洋养殖业及人类健康造成危害. 相似文献
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山东半岛蓝色经济区在建设中会伴生一系列生态环境隐患,如由现代海洋产业体系的构建以及海洋工程建设、滨海旅游等引发的海域污染、海洋生态系统破坏和海洋资源枯竭问题等。为保持山东半岛海陆生态系统的完整性,推进海洋生态文明的建设,需要从现行的法律体系中寻求相关的法律依据,并分析其不足和缺陷,提出改进的建议。此外相关制度的完善对推动山东半岛蓝色经济区走生态文明发展之路至关重要,着重对海洋生态补偿机制、海洋资源有偿使用制度以及海洋功能区划制度作了论证,从而为半岛蓝色经济区的健康发展提供制度支撑。 相似文献
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Scientific research exploring ocean acidification has grown significantly in past decades. However, little science education research has investigated the extent to which undergraduate science students understand this topic. Of all undergraduate students, one might predict science students to be best able to understand ocean acidification. What conceptions and misconceptions of ocean acidification do these students hold? How does their awareness and knowledge compare across disciplines? Undergraduate biology, chemistry/biochemistry, and environmental studies students, and science faculty for comparison, were assessed on their awareness and understanding. Results revealed low awareness and understanding of ocean acidification among students compared with faculty. Compared with biology or chemistry/biochemistry students, more environmental studies students demonstrated awareness of ocean acidification and identified the key role of carbon dioxide. Novel misconceptions were also identified. These findings raise the question of whether undergraduate science students are prepared to navigate socioenvironmental issues such as ocean acidification. 相似文献
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我国海洋生物资源及其可持续利用 总被引：6，自引：0，他引：6
我国海洋生物资源极为丰富,物种种类繁多,是我国海洋经济发展的物质基础.近20年来沿海经济发展引起日益严重的环境污染.过度采捕、围海造田和滩涂开发已严重影响了我国海洋生物资源的可持续利用.应采取包括法规建设、污染治理、保护物种多样性、发展远洋渔业及可转让的捕捞证制度等各种措施,保证我国海洋资源的可持续利用. 相似文献
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Géraldine Fauville 《International Journal of Science Education》2013,35(16):2151-2170
ABSTRACTIn this article, 61 high-school students learned about ocean acidification through a virtual laboratory followed by a virtual lecture and an asynchronous discussion with a marine scientist on an online platform: VoiceThread. This study focuses on the students’ development of ocean literacy when prompted to ask questions to the scientist. The students’ questions were thematically analysed to assess (1) the kind of reasoning that can be discerned as premises of the students’ questions and (2) what possibilities for enhancing ocean literacy emerge in this instructional activity. The results show how interacting with a scientist gives the students an entry point to the world of natural sciences with its complexity, uncertainty and choices that go beyond the idealised form in which natural sciences often are presented in school. This activity offers an affordable way of bringing marine science to school by providing extensive expertise from a marine scientist. Students get a chance to mobilise their pre-existing knowledge in the field of marine science. The holistic expertise of the marine scientist allows students to explore and reason around a very wide range of ideas and aspect of natural sciences that goes beyond the range offered by the school settings. 相似文献
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慕容雪村的小说一方面解构情感、否定理想与信仰,进而否定现实存在;一方面凸显对人类命运的关注,聚焦环境污染等问题,表现出鲜明的忧患意识,同时亦表现出都市生活中诗意的消解与都市人失去精神栖息地之后的困窘。独特的内蕴使其文本具有强烈的人文情怀与当下意识。然而,文本中情感的过于浓烈和真情缺失以及与现代生活的疏离感,也使其小说少了几分作家应有的冷静思考和辩证反思。 相似文献
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Calcium carbide slag, generated in the hydrolysis process of calcium carbide, is an potential carbon capture reagent because its main ingredient is Ca(OH)2. Calcium carbide slag, a by-product of a resin factory was used as carbon capture reagent. The change of pH and electrical conductivity (EC) of the calcium carbide slag slurry with different solid-to-liquid ratios, as well as the capture efficiency and dynamics under different temperatures and flow rates of CO2 were studied. The properties of solid were characterized with XRD, TG-DTA, SEM and FT-IR before and after capturing carbon. The results show that the change of pH and EC were greater with low solid-to-liquid ratio than that with high solid-to-liquid ratio. The analysis of XRD and SEM show that the content of CaCO3 increased significantly, which improved that Ca(OH)2 and free CaO were reacted with CO2. The results of TG-DTA and FT-IR show that the physicochemical properties and microstructure of the slag changed after capturing CO2 because of the increase of CaCO3 content. All the results mentioned above improve the feasibility of utilizing calcium carbide slag to capture CO2 and offer a practical way for carbon emission reduction and disposal of wasted calcium carbide slag. 相似文献
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In recent years, rapid changes in the Earth's climate and environment have influenced our lives greatly. The ocean occupies 70% of the Earth's surface and is intimately related to the regulation of climate, fostering of life, and also to social economy, as well as sports and leisure. Students in the senior years of primary education are in a phase of developing value systems. Concurrently, these students are also constantly using the Earth's resources. More importantly, they will play leading roles in the next generation. From the perspective of education, the learning status of student's cognition, attitudes, and behaviors regarding protection of the marine environment must be understood more clearly to avoid future mismanagement of marine environmental problems on the part of these students. Hence, this study uses correlative, regressive, and path statistical analysis to examine data collected from questionnaires. Results show that student knowledge of and attitudes toward marine environmental protection do not have significant influences on behaviors; however, student's marine environmental protection knowledge, attitudes, and behaviors are all within the medium to high range. Because of relatively low student curricular involvement, and because involvement has no correlation with knowledge performance, this study infers that school curricula are not the main sources of student information and attitudes regarding marine environmental protection. Rather, building student attitudes toward marine environmental protection by increasing their involvement in field trips indirectly influences behaviors that are protective of the marine environment. Such an approach is comparatively more effective and can serve as a reference for modifying the implementation methods of marine protection curricula. 相似文献
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尚荣 《南通师范学院学报》2014,(5):8-13
＂无事＂作为寒山诗的一个意象,最能体现出寒山诗中闲适安然的境界。＂无事＂之含义是随着＂事＂的意涵不断变迁而变化的。寒山诗中的无事,融汇了佛道两家对于无事的理解。寒山诗中的＂无事＂意象一方面表现为对生死之事的彻底理解,从而成为歇心意味上的无事;另一方面,寒山诗在体认心性时,重视其中所具有的在世意趣,由此表现为任运意味上的无事。上述两方面,揭示出了寒山诗逍遥自在感的生成过程和理解寒山诗的一个背景。 相似文献
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海洋开发使中华民族与海洋的关系交融和谐,密不可分。在不同的历史时期,形成了不同的海洋观念。现代海洋观念的产生、变化和发展是一个循序渐进地过程。在海洋开发实践中,人们形成了海洋价值观、海洋政治观、海洋权益观和海洋国土观等现代海洋观念。现代海洋观念的形成,有助于人们合理有序地开发和利用海洋,造福人类。 相似文献
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靳安广 《南阳师范学院学报》2014,(5):1-5
每一个人都渴望拥有出彩的人生,即创造和实现价值。如何才能拥有人生价值,也许需要每一个人去寻求去思考。只有在不断地追问中才能逐渐澄明。这或许根源于人生价值的内在矛盾性:既有平等性,又有差异性。每一个人作为人的体现和独一无二,不以各种外在的条件而有高低贵贱之分,都有同等的做人的权利,有同等的人格尊严,因此其存在的价值是平等的。另一方面,现实的人所具有的具体条件,使其与其他人存在种种差异,每一个人因其不同的作为而书写出不同的人生,从而具有不同的价值。肯定人的价值的平等性,人与人才能有一个交流、理解、合作和共处的基础。承认人的价值差异性,我们将意识到人生的责任,努力创造和提升自身价值,珍重自己独特的人生并尊重和容纳他人的人生。 相似文献