共查询到20条相似文献，搜索用时 62 毫秒
1.
文章从可持续发展角度,阐述了海洋经济可持续发展能力的内涵,并以系统理论为指导,构建海洋经济可持续发能力的评价指标体系,并选用三标度层次分析法建立海洋经济可持续发展能力评价模型,并对我国沿海区域海洋经济可持续发展能力进行了定量分析和评价. 相似文献
2.
3.
4.
5.
文章构建了辽宁省海洋经济可持续发展状况的评价指标体系,包括海洋经济生产可持续发展、海洋科技可持续发展和海洋生态可持续发展3个子系统及21项指标。运用主成分分析方法分析了1999—2008年辽宁省海洋经济发展状况及3个系统协调度的发展趋势。分析结果是:经济生产系统对海洋经济可持续发展促进作用显著;科技支撑系统及生态系统的薄弱严重制约了海洋经济可持续发展。据此提出对策建议,以保证辽宁省海洋经济可持续发展能力的提升。 相似文献
6.
文章在分析海洋经济可持续发展内涵的基础上,以海洋产业发展能力、海洋资源供给能力、海洋环境治理及保护能力、海洋科技发展能力４个方面１９项指标构建了广西海洋经济可持续发展能力的评价指标体系。运用主成分分析方法分析了２０００—２００９年广西海洋经济可持续发展能力状况。研究结果表明：研究期间,广西海洋经济可持续发展能力总体趋势是上升的,并可分为两个阶段;海洋产业发展能力对海洋经济可持续发展能力提升作用显著;海洋科技发展能力和海洋环境治理及保护能力的薄弱严重制约了海洋经济可持续发展能力的提升,并据此为广西海洋资源的可持续利用提供建议和对策。 相似文献
7.
客观评价海洋经济可持续发展能力是合理开发海洋资源、发展海洋经济的主要依据。根据科学性、系统性、层次性、可操作性和定性与定量相结合等原则,结合浙江省实际,首先构建了包括海洋资源禀赋力、海洋环境治理力、海洋产业发展力和海洋科技支撑力等4个方面共计33个指标组成的浙江省海洋经济可持续发展能力综合评价指标体系。其次,将灰色关联分析与分层TOPSIS(Technique for Order Preference by Similarity to an Ideal Solution)组合成浙江省海洋经济可持续发展能力的量化模型。最后利用2004-2009年的数据进行了实证分析,并根据分析结果提出了提升可持续发展能力的相应措施。 相似文献
8.
文章以系统论为基础,构建由资源、环境、经济、社会和科技5个子系统组成的海洋经济可持续发展评价指标体系,对我国海洋经济可持续发展能力进行定量评价,得出沿海地区可持续发展能力的排名,并将其分为4组。我国海洋经济可持续发展能力呈先降低后升高的趋势,各子系统对可持续发展能力的贡献情况有所不同,从计算变差系数看出沿海地区可持续发展能力差异变化幅度较小。运用R/S分析法预测在2012—2021年期间,沿海地区的差距先缓慢增大后缓慢减小。最后,从提高海洋经济可持续发展综合协调能力、海洋资源开发能力、科技支撑能力和保护海洋生态环境等方面提出具体建议。 相似文献
9.
海洋循环经济评价指标体系研究 总被引：3，自引：0，他引：3
在阐明海洋循环经济内涵和外延的基础上,研究探讨了海洋循环经济评价指标体系的设计原则与设计方法,提出了由海洋企业循环经济评价指标体系、海洋生态工业园区循环经济评价指标体系和基于社会层面的海洋循环经济评价指标体系构成的海洋循环经济评价指标体系框架. 相似文献
10.
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.
V. A. Ivanov S. P. Lyubartseva N. Mikhailova N. B. Shapiro 《Physical Oceanography》2001,11(6):509-524
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.
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
16.
Relationship between the path of the Kuroshio in the south of Japan and the path of the Kuroshio Extension in the east 总被引：2，自引：0，他引：2
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
17.
I. E. Timchenko A. A. Primalenny V. D. Yarin E. F. Vasechkina E. M. Igumnova 《Physical Oceanography》2001,11(4):367-378
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
18.
I. G. Ostrovskaya 《Physical Oceanography》1992,3(5):397-403
Three mathematical models are considered: a two-dimensional model for calculating the concentration fields of the ecosystem components on the shelf of the Republic of Guinea, a pointwise model for the annual variation of the components, and a two predators-prey model. These models are used to study the effect of hydrodynamic conditions on the state of the shelf ecosystem and for research into the causes which distort the balance between marketable and unmarketable fish.Translated by Mikhail M. Trufanov. 相似文献
19.
Al. A. Shreider 《Oceanology》2007,47(1):91-103
The first data on the temporal evolution of the slope of the buried depression of the Black Sea are obtained. The sharp change in the rate of the decrease in the slope steepness that occurred in the Late Miocene-Pliocene time reflects a reorientation of the vector of mutual movement and a related intensification of the collision between the Arabian and Eurasian lithospheric plates. 相似文献
20.
The study of the sedimentary body of the Bransfield Strait has made it possible to identify several sedimentary complexes, to construct the first electronic charts for the acoustic basement, and to establish four stages of the evolution of its floor, which updates the previous knowledge about the formation of the strait. At the first stage, there was an increase in tension stresses that were accompanied by the local splits of the continental crust at the periphery of the Antarctic Peninsula. At the second stage, a graben-like structure filled with the Lower stratigraphic complex was formed northward of the Antarctic Peninsula. At the third stage, the continuing processes of extension led to intensive explosive activity of the growing volcanic structures and filling of the graben with sediments of the Middle seismostratigraphic complex. The fourth stage, which has continued until recently, is characterized by quasi-linear localization of the major centers of volcanic activity in the band closer to the South-Shetland Islands and the formation of the Upper seismostratigraphic sedimentary complex. The evolution of the floor of the Bransfield Strait reflects the process of penetration of the American-Antarctic ridge to the continental lithosphere of the Antarctic Peninsula for the last million years. 相似文献