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1.
青岛市位于黄海之滨、胶州湾畔,是我国东部沿海重要的经济中心城市和港口城市,是中国历史文化名城和滨海旅游胜地。全市海岸线长862.64km,沿岸分布着49处海湾和69个岛屿,拥有滩涂375km2,20m等深线以内浅水域水面3255km2,全市管辖海域1.38万km2,比陆地面积大了约1/3,海洋资源十分丰富。进入21世纪,人类步入了全面认识海洋、综合开发海洋和科学保护海洋的新时期,沿海各地都纷纷调整了发展战略,把加快海洋开发作为沿海城市调整产业结构,促进结构优化升级,增强城市国际竞争力的重要举措。面对新的形势,青岛市将立足于海洋资源、海洋区位、海洋科…  相似文献   

2.
连云港市位于我国沿海中部,是东海海区的北大门,东临黄海,西通中原,南屏江淮,北接齐鲁,是中国沿海首批14个对外开放城市之一、新亚欧大陆桥的东方桥头堡,也是中国三大海洋特殊开发区之一。拥有176km海岸线、30.6km岛屿岸线和14座基岩海岛,领海基线以内海域面积6677km2,全市滩涂10.67万hm2,有江苏省唯一的基岩港湾海岸40km和仅有的砂质海岸30km,岛屿陆域面积6.22km2。  相似文献   

3.
规范养殖用海管理的实践与思考   总被引:1,自引:0,他引:1  
盐城市位于江苏沿海中部,海域总面积约1.7万km2,其中内水面积约1.1万km2,连陆滩涂及辐射沙洲约45.3万hm2。境内海岸线长582km,占江苏全省的60%。海岸大体分两种类型:一类是射阳河以北为侵蚀性粉砂淤泥质海岸,近几年的人工达标海堤建设,海岸侵蚀得到了遏制;一类是射阳河以南为堆积型粉砂淤泥质海岸,沿岸潮间带浅滩宽10~13km,岸外为巨大的辐射状沙脊群,本岸段是江苏海岸淤积作用最大、潮间带最宽的地带。  相似文献   

4.
江苏沿海滩涂围垦现状及其对环境的影响   总被引:15,自引:1,他引:15  
江苏沿海滩涂土地资源丰富,围垦活动较为频繁,了解围垦状况及其对环境的影响具有重要的现实意义。通过对江苏沿海围垦资料的统计,分析了建国后江苏沿海滩涂围垦的特点、目的和差异,并将之分为4个阶段;讨论了江苏沿海滩涂围垦的地区分布是以盐城为中心的不平衡状况,分析了围垦对江苏沿海自然环境及经济发展的影响;预测了江苏沿海滩涂围垦的发展方向,提出条子泥等地区是江苏沿海滩涂未来围垦的潜力地区。  相似文献   

5.
福州地处东南沿海,所拥有的10573km2的管辖海域,几乎与陆地面积相当,形成了又一个“海上福州”。长达800km的海岸线,沿岸蕴藏着1580种的海洋生物,境内拥有18个港湾,其中罗源湾、福清湾、兴化湾是福建省的三大深水良港,可建设5万~30万吨级泊位码头。马尾港更是全国十大港口之一  相似文献   

6.
苏北沿海港口开发与可持续发展研究   总被引:8,自引:0,他引:8  
陈洪全 《海洋科学》2000,24(1):52-54
HARBOUREXPLOITANDSUSTAINABLEDEVELOPMENTOFJIANGSUCOAST江苏省的海岸线,北起赣榆县绣针河口,南抵长江口北岸启东市连兴港,全部地处苏北。大陆海岸线近900km,大多为淤泥质海岸,有滩涂700多万亩。目前,江苏仅有连云港一座大型海港,1996年实现吞吐量1583×104t。1997年底,江苏沿海海港货物吞吐量仅占全国2%(不含南通港),与江苏经济大省的地位很不相称。随着“建设海上苏东”战略的实施,沿海掀起了加快开发和建设海港的热潮,在建和拟建的中小型港口有射阳港、陈家港。燕尾港、大丰港、滨海港、中山港、烂…  相似文献   

7.
江苏省沿海沙洲及潮汐水道演变的遥感分析   总被引:2,自引:0,他引:2  
江苏东部沿海发育有国内罕见的辐聚状沙脊群,在不同的历史时期具有不同的结构、分布和演变特征。简述了不同历史阶段江苏沿海沙洲分布及演变,通过20世纪70、80、90年代3期卫星数据图像的解译对比,对近20年来江苏沿海沙洲及潮汐水道的分布、变化特点和发展趋势进行了分析研究。  相似文献   

8.
实施新一轮沿海开发,是江苏省委、省政府推动区域共同发展的又一个关乎全省发展大局的重大战略决策,是江苏加速推进两个率先的重要战略支点。如东作为全省的海洋大县,拥有106千米的海岸线,6000平方千米的海域面积,拥有江苏沿海不可多得的深水航道,靠长江、靠上海、靠市场及土地、淡水丰富等诸多优势,处  相似文献   

9.
苏北沿海港口开发与可持续发展研究   总被引:2,自引:0,他引:2       下载免费PDF全文
江苏省拥有9538km的海岸线,其中,大陆海岸线近900km,占全国大陆海岸线5%,北起赣榆县锈针河口,南抵长江口北岸启东市连兴港,全部地处苏北。目前,江苏沿海仅有连云港一座大型海港,1996年实现吞吐量1583万t。江苏沿海大港数量和规模远远不及山东、广东、河北、辽宁等沿海省区,1997年底,我国沿海主要海港货物吞吐总量达905亿t江苏仅占全国2%南通港为河海港除外,与江苏经济大省的地位很不相称。随着江苏“建设海上苏东”战略的实施,苏北沿海揿起了加快开发和建设海港的热潮,正在建设和拟…  相似文献   

10.
《海洋开发与管理》2011,28(10):18-21
李正楼:江苏沿海开发上升为国家战略之后,近千千米海岸线上风云际会,激情澎湃。射阳作为江苏沿海14个县市之一,依靠哪些优势和特色在这一轮区域竞争中脱颖而出?徐超:枕港靠海是射阳最大的优势,土地广袤是射阳最大的潜力。具体地讲,我们射阳在江苏14个沿海县份中有三个较为明显的比较优势:一是独特的区位优势。射阳地处江苏沿海承南启北的中心节点,由权威机  相似文献   

11.
The analysis of the structure of the cryolithozone, facies, and thicknesses of the Quaternary sediments and the results of the physicochemical mathematical modeling of the modern shelf of the western part of the Laptev Sea support the influence of the Late Pleistocene glaciations on the heat conditions and the distribution of the permafrost in the area. A ~200-m thick glacier formed under aerial conditions from atmospheric precipitation represented the metamorphosed snow cover. According to the modeling, the long-living (from 60?50 to 10?4 ky) glacier reduced the thickness of the permafrost rocks in the reviewed shelf area for 280–360 m. The Holocene marine transgression additionally decreased the thickness from 50–140 m on the inner shelf to 220–350 m on the outer shelf. The modern submarine cryolithozone 450-0 m thick is wide-spread in the studied region from the coast to the shelf boundary (isobaths of 130–140 m), where it pinches out at a distance of ~380 km from the coast at a depth of ~250 m above the sea level.  相似文献   

12.
We analyze the components of the carbon system of the Sevastopol bay waters and the balance of main sediment-forming substances using the data of field investigations in 1998–2008. The interannual variations of total inorganic carbon and the equilibrium partial pressure of carbon dioxide in the bay water are noted. An increase in the flux of carbon dioxide into the bay and in the content of organic carbon in bottom sediments is revealed, and an explanation of this phenomenon is given. The priority accumulation of organic carbon in the sediments of the bay is established. We assess the interannual variation in the relative abundances of organic and inorganic carbon as an index of the carbon cycle stability.  相似文献   

13.
We generalize and analyze the state of investigations of the influence of river waters on the hydrologic structure of the Black Sea. Specific features of the water, regime and hydrography of rivers flowing into the sea, data on the discharge of rivers, and intrayear and interyear variability of the discharge are presented. We discuss and analyze works studying the transformation of river waters, routes of desalinized sea waters, and their influence on the thermohaline structure and dynamic regime of the sea. Translated by Peter V. Malyshev and Dmitry V. Malyshev  相似文献   

14.
We analyze the results of numerical calculations performed according to the three-dimensional interdisciplinary model of an ecological system of the Black-Sea shelf zone near the estuary of the Danube. The complete system of equations of hydrothermodynamics is solved together with transport equations of the advection-diffusion-reaction type used to describe the transformation of a substance (nitrogen) between the components of the characteristic vectors of the ecosystem: plankton, detritus, and biogenic elements (nitrates). We describe the distinctive features of the circumcontinental distribution of components obtained as a result of numerical experiments and present arguments for the conclusion that the ecosystem of the Danube estuary water area plays the role of a buffer zone between the press of the Danubian biogenic pollutions and the neighbouring areas of the shelf zone and open sea. Translated by Peter V. Malyshev and Dmitry V. Malyshev  相似文献   

15.
A relationship between paths of the Kuroshio and Kuroshio Extension (KE) is investigated, using the satellite-derived altimetry dataset of 1993–2008. When the Kuroshio takes the nearshore nonlarge meander path or typical large meander path and resultantly goes through the deeper channel (about 2500 m) of the Izu-Ogasawara Ridge, the KE path adopts a relatively stable state with the two quasi-stationary meanders. On the other hand, when the Kuroshio takes the offshore nonlarge meander path and then passes over the shallower part of the Ridge (about 1000 m), the KE path tends to be convoluted, i.e., an unstable state.  相似文献   

16.
Ten years of semistationary studies of the interaction of the ice cover and the coastal relief of the Kandalakhsa Gulf in the White Sea allowed us to reveal the peculiarities of these processes in the warm and cold years and the mechanisms of the origination of ice forms, including ice tents, which govern the character of the tidal flats. Three dynamic fast ice zones are distinguished by their geomorphological location, morphology, and ice dynamics. The dependence of the mechanisms and volumes of the enrichment of the fast ice in the sediments on the coastal zone??s relief was established. At the coast of the Kindo Peninsula (Velikaya Salma Strait), the ice mostly contains fine-sandy sediments. Coarser sediments, including boulders, are occasional and frozen into the ice at the contact of the fast ice and the bottom. At the expense of the ice??s spreading by 4?C6 times in the warm years and 2?C4 times in the cold years, several thousand tons of sediments mostly from the tidal flat??s surface (100?C700 m3 from 1 km of coast in the wide tidal flats and <50 m3 on the steep coasts) are delivered to the water area.  相似文献   

17.
The methodology and the first results of the computations of the volumes, masses, and growth rates of the sedimentary body of the buried Black Sea basin are presented. Their temporal evolution reflects the regional paleogeodynamics, in particular, the reorientation of the vector of the relative movement of the Arabian and Eurasian lithospheric plates and the related intensification of their collision in the late Miocene-Pliocene.  相似文献   

18.
The spatiotemporal variability of the hydrochemical composition of the riverine runoff in nearmouth areas is presented using the example of selected rivers of the Arctic Basin. The temporal dynamics of the riverine nutrient runoff are mainly determined by the seasonal and interseasonal variations in the drainage basins. The spatial variations in the chemical composition of riverine waters in the near-mouth areas are mainly caused by the dynamics of the water flow and the river bed relief and, to a lesser degree, by biochemical processes. It is shown that the variations in the nutrient composition of the waters in near-mouth areas are comparable in magnitude to those at the river-sea geochemical barriers.  相似文献   

19.
Izvestiya, Atmospheric and Oceanic Physics - Analysis of the temporal variations of the virtual heights of the sporadic E layer (h?ES) determined from ionograms with increased accuracy (1...  相似文献   

20.
We use many-year archival observations of hydrologic and hydrobiologic state of the Sea of Azov for the identification of the structure of a model of its ecosystem. The ecosystem model, supplemented with expert estimates of bioresource consumption (fish reserve), contamination level, and possible ecologic fines for violation of the sea natural state, is formalized by the method of system dynamics. Hereat, the major part of influence functions is found in terms of observational data with application of self-organization algorithms. We also present the results of simulated experiments with the model of the ecosystem, which enable us to analyse scenarios of its behaviour under the influence of various external factors (wind, river discharge, water exchange with the Black Sea, etc.). Translated by Peter V. Malyshev and Dmitry V. Malyshev  相似文献   

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