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21世纪是海洋世纪，开发海洋资源，发展海洋经济已成为国内外沿海地区实现经济振兴的重要举措。辽宁是海洋大省，海洋资源开发潜力较大对于加快发展海洋经济，建设“海上辽宁”，推动辽宁老工业基地的全面振兴，具有重要意义。文章以辽宁省为例，在分析海洋经济和东北地区经济发展现状的基础上探讨了海洋经济在振兴东北中重要的拉动作用。 相似文献
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发展临海产业实现辽宁海陆一体化建设栾维新辽宁师范大学地理系辽宁省是全国重要的沿海省区之一，具备发展海洋经济的优越条件，经过多年开发，海洋水产业、海上运输业、海盐业、滨海旅游业和海洋油气开来业等海洋产业部门都已形成一定规模。但这些并不是海洋开发的全部，... 相似文献
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韩勇 《海洋与海岸带开发》2012,(6):50-52
辽宁省海洋管理工作一直走在全国沿海省（自治区、市）的前列。早在20世纪80年代初期,辽宁省就在全国率先喊出了＂建设海上辽宁＂的口号;1992年国家海洋局授予辽宁省政府实施辽宁毗邻海域海洋监察管理权,辽宁省有了初步的综合性海洋行政执法管理权,也成为全国沿海首批拥有海洋监察管理权的省份。在辽宁省委、省政府的正确领导下,在中国海监总队的大力支持下,中国海监辽宁省总队以服务沿海经济建设为主线,以维护我国海洋权益、规范辽宁省海域使用秩序、保护海洋生态环境与资源为重点,不断加大执法力度、夯实执法基础、完善执法内容、创新执法方式,为捍卫我国海洋权益、促进辽宁沿海海洋经济可持续发展提供了有力的保障。近年来,辽宁省海监队伍规模不断壮大,执法装备不断改善,执法管理日渐规范,采取日常巡查与专项执法行动相结合的方式,不断增加检查次数,规范办案行为,严格处罚标准,海监执法威慑力和效果显著。 相似文献
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辽宁省开始实施一项海洋开发规划,决心在21世纪造出一个“海上辽宁”,全省海洋经济总值达到或接近全省陆域国内生产总值。辽宁省目前每年国内生产总值达9000亿元。 这是辽宁省省长闻世震在“海上辽宁”建 相似文献
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2013年我国首次向全世界提出人类命运共同体理念，在全球范围内积极倡导人类命运共同体的构建。东北亚共同体是人类命运共同体的组成部分，是中国打造周边命运共同体的重要助力，同时为辽宁海洋经济的发展带来了机遇和挑战。文章通过分析辽宁海洋经济发展现状，梳理辽宁海洋经济发展的相关法律和政策，发现辽宁海洋经济要实现高质量发展还存在海洋经济供给侧结构性改革、海洋环境综合治理、海洋经济协同发展合作等方面的法律和政策缺失，应当加强海洋经济供给侧结构性改革的立法和政策保障，加快海洋经济协同发展合作和海洋环境综合治理的区域性法律与政策的制定，促进东北亚海洋经济协同发展，共同打造东北亚命运共同体。 相似文献
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本文从辽宁省海洋经济发展现状及存在问题出发,提出发展海洋循环经济是辽宁省海洋经济发展的必然趋势,分析了发展海洋循环经济对于辽宁省海洋经济可持续发展的作用,并提出了今后发展海洋循环经济,促进辽宁省海洋经济可持续发展的具体措施。 相似文献
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为推动我国振兴东北老工业基地战略,充分发挥我国东北地区面向海洋的区位优势,加快区域经济的发展和繁荣,文章从基础条件、空间布局和实施重点3个方面,分析我国东北地区海洋经济的区域协同发展战略。研究结果表明:辽宁省是海洋经济大省,而在打破传统"沿海"观念的基础上发展吉林省和黑龙江省的毗海经济和向海经济,有利于辽宁省海洋产业的转型升级和整个东北地区海洋经济的区域协同发展,俄罗斯远东发展战略与我国振兴东北老工业基地战略也为此创造了环境和机遇;我国东北地区海洋经济区域协同发展的空间布局为"一轴一带两区",其中"一轴"为大连至佳木斯的铁路通道,"一带"和"两区"分别为辽宁沿海经济带、延边州海洋经济区和绥芬河海洋经济区,各地发挥各自的区位和产业优势,科学布局海洋产业,形成集聚、辐射和带动力量;我国东北地区应大力推动海洋经济一体化、资源配置市场化、对外开放国际化和科学技术创新化,从而实现海洋经济的区域协同发展。 相似文献
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Size-fractionated uranium isotopes in surface waters in the Jiulong Estuary in China 总被引：1，自引：1，他引：0
L&#; E ZHANG Lei CHEN Min QIU Yusheng XING N YANG Weifeng LI Yanping HUANG Yipu 《海洋学报(英文版)》2008,27(1):29-41
Surface water was collected from the Jiulong Estuary for determination of activity concentrations of uranium isotopes in different size fractions, namely, greater than 53, 10 -53, 2 - 10, 0.4 -2 μm, 10 000 u -0.4 μm and less than 10 000 u fractions by microfihration and cross-flow uhrafiltration technologies. Results indicated that most of the dissolved uranium （ 〈 0.4 μm） exis- ted in the low molecular mass fraction （ 〈 10 000 u）, and the colloidal uranium-238 （10 000 u -0.4 μm） only contributed less than 1% of the dissolved uranium-238. The fractions of colloidal uranium in the dissolved phases decreased with the increasing sa- linity. A positive linear relationship between uranium-238 activities and salinities was observed for the dissolved, colloidal and low molecular mass fractions, indicating a conservative behavior of uranium in the Jiulong Estuary. In the particulate phases （ 〉 0.4 μm）, the partitioning of uranium isotopes among different size fractions was controlled by the partitioning of particle concentrations. In the regions with salinities below 20, the partitioning of uranium-238 among different size fractions was as follows： 10 - 53 μm 〉 2 - 10 μm 〉 0.4 - 2 μm greater than above 53 μm. However, the order at the offshore station with salinities above 30 changed as follows ： 0.4 - 2 μm 〉 10 - 53 μm 〉 2 - 10 μm greater than above 53 μm. The fraction of the 0.4 - 2 μm particles increased at the offshore station, suggesting the increased contribution of the authigenic uranium. The activity ratio of uranium-234 to uranium-238 in the dissolved phases, including the low molecular mass fraction and the colloidal fraction, was larger than unity, showing the occurrence of excess uranium-234. In contrast, the activity ratio of uranium-234 to uranium-238 in all size fractions of the particulate phase was close to the equilibrium value （1.0）. The observed different values of the activity ratio of uranium-234 to uranium-238 in the dissolved phase and the partic 相似文献
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中国科学院海洋研究所建所70年来，在海洋贝类分类学研究领域取得了长足发展与进步，做出一系列开创性研究成果。本文综述了建所以来我所海洋腹足类分类学研究方面的主要进展，概述了取得的主要科研成果，分析了现代腹足类分类学研究的发展趋势以及面临的挑战，并对今后的发展提出了相应对策和建议。 相似文献
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In order to investigate factors controlling nutrient cycling in the shallow and turbid coastal ecosystem of Galveston Bay, data from: (1) the Texas Water Commission (TWC) database 1980–1989, and (2) salinity transects in 1989 and 1993 are presented and analyzed. Statistical regression and time-series analysis were carried out on data acquired by TWC between 1980 and 1989, in an attempt to establish seasonally of nutrient and chlorophyll-a (chl.-a.) concentrations in the bay and to determine factors which regulate these concentrations.A strong seasonality was found for phosphorus and chl.-a. in the upper and mid-bay stations. A recurring maximum for phosphate occurred in September and a chl.-a. maximum occurred regularly in March–April. It is hypothesized that benthic regeneration of phosphorus at the end of summer is responsible for the phosphate maximum. The inverse correlation of the partition coefficient (Kd) for phosphate with the concentration of suspended particulate matter (SPM), coupled to a strong enrichment of phosphate in suspended particles at low SPM concentrations, indicates additional control by geochemical and physical processes such as particle sorting and/or particle-colloid interactions. Nitrate is inversely correlated with salinity at the upper and mid-bay stations, indicating the Trinity River is a major source.Nutrient concentrations in the lower bay (East and West Bay stations) are considerably lower and less predictable, as they are not correlated with salinity or temperature. Data from the 1989 and 1993 transects confirm the yearly maximum in phosphate concentration in late summer months, with peak concentrations in the upper Trinity Bay. It is concluded that despite possible phosphate buffering by physical and geochemical mechanisms, relatively large concentration maxima recur regularly every year during the summer, possibly caused by a benthic source of phosphate. 相似文献
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《Deep Sea Research Part I: Oceanographic Research Papers》1999,46(8):1391-1415
The biomass, species and chemical composition of the mesozooplankton and their impact on lower food levels were estimated along a transect across the Arctic Ocean. Mesozooplankton biomass in the upper 200 m of the water column was significantly higher (19–42 mg DW m-3) than has previously been reported for the Arctic Ocean, and it reached a maximum at ca. 87°N in the Amundsen Basin. The lowest values were recorded in the Chukchi Sea and Nansen Basin, where ice cover was lower (50–80%) than in the central Arctic Ocean. In the deeper strata (200–500 m) of the Canadian and Eurasian Basins, the biomass was always much lower (4.35–16.44 mg DW m-3). The C/N (g/g) ratio for the mesozooplankton population was high (6.5–8.5) but within the documented range. These high values (when compared to 4.5 at lower latitudes) may be explained by the high lipid content. Mesozooplankton accounted for approximately 40% of the total particulate organic carbon in the upper 100 m of the water column. Mesozooplankton species composition was homogeneous along the transect, consisting mainly of copepods (70–90% of the total number). It was dominated by four large copepod species (Calanus hyperboreus, C. glacialis, C. finmarchicus and Metridia longa), which together accounted for more than 80% of the total biomass. According to measurements of gut pigment and gut turnover rates, the mesozooplankton on average ingested between 6 and 30% of their body carbon per day as phytoplankton. Microzooplankton may have provided an additional source of energy for the mesozooplankton community. These data emphasize the importance of mesozooplankton in the arctic food web and reinforce the idea that the Arctic Ocean should no longer be considered to be a “biological desert”. 相似文献
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JIN Xianglong 《海洋学报(英文版)》2013,32(12):1-3
In China submarine geosciences represents a newly established discipline of oceanography, focusing on the oceanic lithosphere, and its interface with the hydrosphere and biosphere. Recently, supported by the National High Technology Research and Development Program and other high-tech development projects, significant progress has been made in the development of advanced technologies and equipment. This en- ables the scientists in China to carry out explorations of the international seabed area in the Pacific Ocean and on the Southwest Indian Ridge. In addition, they have been active in the research activities associated the mid-ocean ridges and western Pacific marginal seas. It is anticipated that this research field will continue to be highly fruitful in the near future. 相似文献
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湄洲湾夏季的初级生产力 总被引：2，自引：3，他引：2
湄洲湾１９９２年夏季的叶绿素ａ，三磷酸腺苷，碳比积累速率，初级生产力的变化范围和均值分别为０．４５－４．７２，１．４９ｍｇ／ｍ＾３；０．１２－１．０７，０．３１μｇ／ｄｍ＾３；０．０６－０．５８，０．３４ｄ＾－１；０．０７－０．３４，０．２１ｍ／（ｍ＾２．ｄ）。叶绿素ａ与三磷酸腺苷之间。初级生产力与碳比积累速率之间均呈正相关关系。叶绿素ａ三磷本能腺苷的比值为４．８，湄洲湾夏季浮游植物的生长受氮不足 相似文献