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"海上山东"建设战略实施以来,山东省海洋经济得到了空前的发展;但面临的各种挑战不容忽视,其中如环境、生态和资源问题以及科学开发与管理体系滞后等越来越威胁山东海洋经济的可持续发展.针对山东海洋经济发展过程中存在的主要环境问题进行了探讨. 相似文献
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文化生态理论是建立在马克思主义方法论之上的关于文化的生态学理论。与其他文化生态相比,海洋文化生态具有开放性、多样性、丰富性、主体性等特征,强调人类整体利益、人与自然和谐以及经济平衡发展。山东海洋文化资源丰富,海洋文化产业开发应秉持生态化原则,建设海洋文化生态保护区,加强海洋文化旅游基础设施建设,重点开发滨海文化旅游、海岛休闲旅游、海洋艺术等产业项目,促进“双碳”和“海洋强省”目标的达成以及经济社会发展的全面绿色转型。 相似文献
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山东加快发展海洋经济、建设海洋强省,是深入贯彻落实习近平总书记经略海洋、建设海洋强国重要指示精神的重要举措,是山东实现两个走在前列、推进新时代现代化强省建设的必由之路。海洋是现代科技的"新战场",建设海洋强省,海洋科技创新是核心关键,也是重要保障。山东海洋科技力量优势明显,但也存在着一些问题和不足,打造山东半岛海洋科技创新中心,提升海洋科技创新能力,完善区域海洋科技创新体系,对于推动海洋经济发展,支撑引领山东新时代海洋强省建设具有重要意义。 相似文献
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山东省海洋工作形势山东是海洋大省,伴随着海洋开发战略的不断深化和提升,全省海洋经济发展不断实现新跨越。"蓝黄"经济成为全省最为活跃的经济板块,预计2012年全省海洋生产总值将达9460亿元,比2011年增长15%,继续在全国处于前列。全省海洋综合管理工作不断跃上新水平,为"蓝黄"两区建设和全省经济社会发展提供了服务保障,作出了不可替代的贡献。近年来,山东根据海洋经济发展的需 相似文献
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海洋蕴藏着生物、矿产、空间、"可燃冰"等多种新能源和可开发功能,而陆地上的煤、石油、天然气等能源,经过数百年的消耗将不可逆转地趋向枯竭。发展蓝色经济是世界各国经济可持续发展的战略选择。海洋知识信息的积累和传播,可提高全民海洋教育和环保意识、海洋国土意识,促海洋高技术创新发展,而海洋高新技术将助中国经济崛起。 相似文献
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在海洋经济产业构成中,海洋油气开发是新兴海洋产业。山东海洋油气资源的开发利用,不但能缓解我国油气安全问题,同时也为经济快速增长的渤海经济区的发展提供物质基础。 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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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
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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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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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《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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