北宋广州、明州市舶司功能定位探析

广州、明州市舶司是北宋最重要、最有代表性的市舶司。广州和明州之所以能够被选为市舶司所在地,这和它们在地理位置、对外贸易交往历史、造船业发达等方面具有的优势息息相关。但是从两地市舶司在北宋时期的发展轨迹分析,它们在功能定位上是不一样的,广州市舶司属于经济功能大于政治功能的市舶司,而明州市舶司则刚好相反。两地市舶司之间的这种不同的定位,也导致了他们在整个北宋时期发展路径的截然不同。

中国股市走势与经济发展同向异动分析

中国股市与改革同步发展 ,与国民经济同向运行 ,但股市波动明显异动于宏观经济高速发展的轨道 ,常以暴涨暴跌、长熊短牛的方式演绎非规范市的个性。究其原因 ,是“政策市”与“投机市”及上市公司品质普通不佳所致。要解决中国股市的异动问题 ,必须要使股市定位由单纯为国企改革服务转向为全国经济服务 ,用市场方式促使股市由政策市向功能市。

Patterns of species diversity and functional diversity of breeding birds in Hangzhou across an urbanization gradient

Given the rapid rise in human population and increasing urbanization,it is important to understand their potential impacts on biodiversity.From March 2007 to August 2007,we conducted bird surveys in 90 strip transects,each 3 km long and 100 m wide,along a gradient of urbanization in Hangzhou,China.This gradient spanned a range of urbanization levels including urban areas,rural-urban continuum areas,farming areas,mixed forest/farming areas and forested areas.We recorded 96 breeding bird species and classified them into nine functional groups based on nesting requirements.The nine functional groups consisted of canopy nesters,shrub nesters,canopy/shrub nesters,natural cavity nesters,building nesters,natural cavity/building nesters,ground nesters,water surface nesters and parasitic nesters.Species and functional diversities were estimated based on the Shannon-Wiener index.Environmental data of each transect as human disturbance,vegetation cover and building index were also measured,and a synthetic urbanization index of each transect was introduced based on these data.We used regression analyses to model the relationship of species abundance,species diversity,functional abundance and functional diversity with this synthetic index.The results show that urbanization significantly reduces species richness,species diversity,functional richness and functional diversity,but the specific patterns differed.The relationship between species abundance/species diversity and urbanization is linear.In contrast,the relationship between functional diversity and urbanization was quadratic.In other words,with increased urbanization,functional diversity declined only slightly at first but then dropped at an accelerating rate.This implies that,although moderate urbanization reduces species diversity of breeding birds,it affects functional diversity of breeding birds only slightly in Hangzhou.The regression analysis of species diversity and functional diversity suggests a quadratic relationship between species diversity and functional diversity,i.e.,a linear relationship between species diversity and functional diversity can only exist at low diversity levels across urbanization gradients and increasing species abundance does not lead to an increase in functional diversity at the highest diversity levels.

Study on the Functional Division of Agricultural Sightseeing in Handan City

Agricultural sightseeing in a new tourism pattern integrates ecological tourism functions into ecological agriculture and rural cultures. Handan City is located in southern Henan Province with excellent geographical conditions. In 2006-2008, agricultural sightseeing has achieved primary development in Handan City, and gradually become an indispensable component of the tourism market in this city. Promoting agricultural sightseeing in Handan City as well as the upgrading of its agriculture will be enhanced, which can be transformed from traditional and unitary function into the comprehensive functions of production, ecology, tourism, culture and education, thus is favorable for promoting the further development of tourism industry, enriching tourism products, realizing the sustainable development of agricultural tourism. Besides, surplus rural labors will be offered more opportunities, and industrial structure in rural areas will also be adjusted properly. Through dividing agricultural sightseeing in Handan City into the eco-agricultural sightseeing zone in the west, metropolis agricultural sightseeing zone in the middle, and economic agricultural sightseeing in the east, the authors clearly defined their ranges, orientation of typical functions, dominant development modes as well as projects, so as to figure out the reasonable development pattern for agricultural sightseeing in Handan City, specify its development context, and provide theoretical basis for the future development of agricultural sightseeing in this city.

Assessment of Direct Eco-value of Liangzi Lake

[Obective] This study amied to evaluate the direct usage value of Liangzi Lake, like plants and animal resources and water storage value. [Method] It was measured through the market value method. The physical environment was introduced and the productivity of the lake was investigated both through the literature materials and the investigations. The market value method was clarified in this paper as well as its operation process and the application fields. [Result] Based on the introduction of the current situation in Liangzi Lake, the direct usage value was estimated as 1.32 billion Yuan/year. Plant resources value was 318 million Yuan/year; animal resources value was 675 million Yuan/year; and water storage value was 325 million Yuan/year for the three parts. [Conclusion] This paper will attract more attention to the emphasis of the reasonable development of nature sources.

The Explore of Landscape Planning and Design of Urban Complex Based on the Patch-Corridor-MatrixModel

As intensive urban organization form, urban complex emerged with the fast urbanization of our country. Based on the Patch-Corridor-Matrix model, the author analyzed urban complex landscape structure from the macro, meso and micro level, and also analyzed the relationship between urban complex and urban systems, the interact between functional patches, the landscape process and requirement of people from the three levels, proposed the main points of the planning and design of the environment landscape of urban complex, expect the study above can benefit urban complex＇s practice projects.

Reorientation Research of Xian＇s City Image

Although over the years, Xi＇an City Image has formed clear public perception imagery, but the lack of a distinctive strategic positioning made the image of the city has not yet achieved the unity of understanding. It is not conducive to the dissemination of the Xi＇an city image and improves core competitiveness. Stand at a different angle on the image of the city of Xi＇an positioning the current situation, different leaders, experts and scholars put forward a different position, the positioning feature of the overall showing as abstract and fuzzy. As an attempt, by analyzing the Xi＇an government documents and the Xi＇an real advantages as well as its competitiveness in the country, this article will re-position the city image of Xi＇an.

Function Zoning of the Major Function Development-optimized County:A Case in Shangyu,Zhejiang

The 11th Five Year Plan has divided national functional zones in the basic unit of county-level administrative region.After implementation of national Major Function-oriented Zones (MFOZ) at prefecture and county levels,the spatial development sequence must be specified,development intensity must be limited,oriented zones must be designated and "red line" areas of spatial governance must be defined.In view of the above,choosing a typical county area and exploring its functional zoning after orienting its major functions will supply reference for carrying out the national spatial planning in the 12th Five Year Period,and it will also provide experience for the study of function regionalization which is the theme of MFOZ in the present academic circles.In this paper,the authors take Shangyu County as an example to study the general principles,train of thought of county-level functional regionalization in development-optimized areas,and to explore its reasonable functional zoning plan.Consequently,the authors present five principles and suggest a function-oriented zoning plan with 2 levels and 4 types.

Parameters Affecting the Color Mechanism of Manganese Containing Colored Glasses

Color is an important tool for glass industry to let the product gain additional aesthetic and functional properties forced by the market demands. In this context, it is necessary to understand the color forming mechanism better in order to get target color and improve the yield. A detailed experimental study to investigate the relationship between the manganese content on color formation and the redox condition was carried out. All experiments were carried out at different level of iron and manganese oxides. Color parameters （dominant wavelength, brightness （%）, purity （%） and L-a-b values） were examined for large interval of batch redoxes. In this paper, the results of above mentioned experimental studies were discussed together.

The Study of Urban Planning Decision-Making in the Background of Rapid Economic Development —— A Case Study of Shanwei City

Urban planning decision-making is an activity for the decision-makers to collect information, judge function of cities, select project and make policy which is ainaed at the problem of urban planning that have taken place, is taking place and will take place. Using historical review and comparative analysis, the articles summarizes planning decision-makings of Shanwei city and it＇s problem, and makes some suggestions to urban planning decision-making system of Shanwei city in the new period.

Projects for Accessibility and ＂Sustainable＂ Planning Alexandria （Egypt）： A Case Study

From a project oriented view point the concept of sustainability concerns a variety of themes. The evolution of any single city brings to light the fact that architecture and town planning have often expressed more than a merely stereotyped conception of ＂style＂, wherever its most significant achievements have responded to structural needs. For ＂sustainable urban development＂ we may assume the necessity of a ＂priority vision＂, according to which economic, ecologic and social potentials should be valued. This paper questions the notion of urban sustainability considering the port of Alexandria and is region at various levels. Today extending for many miles along the sea coast, the city entered a period of crisis in the 1950s when a mass exodus of foreigners followed transfer of the main activities to Cairo, while the surrounding area was subject to reclamation work as part of a plan for national development. An important event occurred in 1989 with the rebuilding of Alexandria＇s world-famous library, bringing with it a hope for revival of the city＇s ecumenical tradition and of the place it formerly held in world culture. While most of its five million inhabitants survive in a variety of unauthorised settlements and the rural areas have suffered severely from the pollution of Lake Maryut Alexandria is expanding by creation of＂gated communities＂, paralleled by intensive building for tourism along the western coast. This growing trend towards the ＂American way of life＂ is destroying any identity of place. Criticizing the unsustainability of the Alexandria of today, this paper focuses on potentials for polycentric development of the city as a vital part of its region and the Nile Delta, also considering that debate is in progress on the accomplishment of important infrastructural projects that may offer fresh opportunities for involving the topography and centuries-old life of the metropolis in designing the future city.

Recent Experience of the Effects of Intervention on Exchange Rates

Recently, foreign exchange rates have been highly volatile all over the world. This article reports on an empirical examination of the effectiveness of foreign exchange market intervention in Tokyo foreign exchange market. In Japan, intervention in the foreign exchange market has occurred frequently and largely. In 2010, exchange rates fluctuated greatly, and the Japanese yen appreciated greatly against other foreign currencies. The Bank of Japan （BOJ） conducted an intervention in the foreign exchange market and bought massive USD to weaken the yen. They are expected to prevent too much appreciation of the yen, to promote export, and expansion of the economy. Recent foreign exchange market intervention in Tokyo has been effective in preventing the Japanese yen from appreciating against other currencies. Also, unsterilization has had a positive effect on depreciation of the yen. Moreover, news announcements by the Bank of Japan （BOJ） has led to depreciation of the yen. Effective announcements would increase the effects on markets. Sterilization in intervention and market communication are both taken into account in this article. The BOJ＇s news announcements seem to convey to markets adequately and communication between the bank and markets functions well. Moreover, the past exchange rate （i.e., the signaling effect） also is important to the movement of exchange rates. On the other hand, portfolio channel is not found

Deleveraging： Definition, Priorities and Policy Options

Dividing aggregate liabilities by GDP is not an appropriate method for calculating the leverage ratio, and may mislead deleveraging operations. In terms of an intrinsic mechanism, an appropriate measure of leverage ratio should be the liability/asset ratio. In their business operations, it is inevitable for real-economy enterprises to incur liabilities arising from business and financial transactions. Therefore, the significance of deleveraging operations is to reduce the leverage ratio below a certain threshold to effectively prevent risks arising from an excessive leverage ratio, rather than to reduce the liability ratio of real-economy enterprises to zero. For real-economy enterprises, a key question is how to adjust their debt structure by reducing current liabilities and increasing mid-and long-term liabilities. The debt structure of real-economy enterprises is primarily determined by their financial structure. Hence, it is essential to adjust the financial structure in order to improve the debt structure of real-economy enterprises and increase the share of direct finance. Various risks exist in the combination of shares and bonds within the banking system, investment-lending linkage and market-based debt-to-equity operations, which are options in reducing the leverage ratio for real-economy enterprises. From the standpoint of giving play to capital market functions, it is advisable to increase the issuance of midand long-term corporate bonds and preferred stock, restrict non-financial listed companies from engaging in financial operations and the shareholders of listed companies from selling shares, encourage equity investment institutions to enhance equity investment in realeconomy enterprises, and further develop the financing function of the stock market.

Review of Carbon Emissions Trading Production Model and Research on Its Applications in China

With the Kyoto Protocol entering into effect in many countries one after another,carbon trading has come into being and developed quickly.China is the main supplier of carbon emissions rights in the world,but such transactions are still in the stage of Clean Development Mechanism (CDM) projects without its own trading system,which is not conducive for China to win the rights of carbon pricing in the international market.Low-carbon and emissions reduction is the international trend nowadays,and therefore,it is particularly necessary and urgent to investigate the issue of carbon trading in China.In this paper,the authors have reviewed Putty-Clay Vintage,which is a model of production function for carbon trading,revealing the main points,contributions and shortcomings of the model.Combined with China's national conditions,the authors have investigated the application of this model in China's carbon trading from four different angles,including enterprise production optimization,financial market development,national macro-economy,and the allocation of emission quota.This study aims to provide China's enterprises with an analytical framework when participating in carbon trading in the future and it is beneficial for them to make optimal production planning when considering the cost of carbon emissions reduction.

The Information Efficiency and Functionality Efficiency of Stock Markets

The efficiency of a stock market is principally measured by its information efficiency and functionality efficiency. Both metrics are closdy related to the information of stock markets. However, there is no uniform definition of information in the economy field since researchers may have various opinions on the information of stock markets. In this research, a comparatively strict definition of information in sense of economy is presented. Based on this definition, the optimal conditions to reach the maximum information efficiency and functionality efficiency of stock markets are derived. The conclusion is, only when the market＇s operation and information transmission mechanisms are fully effective, its information completeness degree is optimal, all investors take optimal equilibrium actions, and the information efficiency and functionality efficiency of stock markets will be optimal. Based on the conclusions, the information efficiency and functionality efficiency of reality stock markets in China are studied and the corresponding supervision countermeasures are suggested.

Sci-Tech

China’s Supercomputer Helps Construct"Smart Cities"Developers of China’s Tianhe-1A,one of the world’s fastest supercomputers,are tapping into the digital brain’s higher functions,moving it beyond animation and Internet financing to help in the construction of new"smart cities."The Tianhe-1A can digitize the planning,design,construction,

Command and Control Cities in Global Space-economy Before and after 2008 Geo-economic Transition

The global economic downturn caused primarily by the US sub-prime mortgage crisis in 2007 engendered revenue loss of the multinational corporations. Existing studies have yet to depict the detrimental impacts on city＇s command and control functions induced by the sub-prime mortgage crisis together with its residual wave of global economic recession on the global spatial economy. Recent and previous studies have produced an ＇instant history＇ of the global spatial economy before the global economic downturn undermines the global economy in late 2008. How- ever, the waxes and wanes of major cities＇ command and control functions on the global economic arena before and after the outbreak of financial crisis and its associated geo-economic transitions are still poorly understood. This paper attempts to contribute a new set of customized data to update and fill in the gap in the literature with the investigation of the command and control functions of cities arotmd the world from 2005 to 2009. Particular attentions are paid to the time-space relationship of the geo-economic transition that can capture the recent historical images of the com- mand and control situation of different cities in the world.

The Thinking about Prompting Gansu＇s New Urbanization

Gansu is occupying the crucial phase of prompting Gansu＇ s new urbanization. The economy continued to develop, the cities＇ function promotes fast, and the obviously superiority of policy superimposition all constitute the support condition of speeding up the new urbanization. Simultaneously, there also has the prominent questions on aspects as low quality of urbanization, the weak supporting ability of industries, ＂the population urbanization＂ falls into the difficult position, the urbanization and the uncoordinated development of agricultural countryside and so on. To speed up the new urbanization, we should handle the relations between speed and quality, cities and countryside, government guidance and participation of society properly. We should start from the most urgent problem, and make the thinking of long-term development clear. Then plan and prompt for it.

Evaluation on Cultivated Land Resource Ecological Service Value in Wuhan Metropolitan Area

The land ecosystem service function value contains the gas regulating function value, air purification function value, water conservation value, land conser-vation value, soil nutrient conservation value and maintain biodiversity value. Based on the method of market value and the data of Hubei Statistical yearbook, cultivat-ed land resources of ecosystem service function value is 730 038.69Mil ion in 2007-2009, and 714 774.99 Mil ion in 2010-2012 in Wuhan Metropolitan Area. After three years of development, Wuhan Metropolitan Area of ecological value of cultivated land has increased by about 3.97%. From the point of each composition, the im-portance of gas regulating function of cultivated land resources and water conserva-tion function is the forefront. From the point of spatial distribution, the highest of annual average value of the cultivated land ecological was Huanggang （1.725 bil ion yuan）, the lowest was Ezhou （217.868 6 mil ion yuan） in 2010-2012. From the point of space changes, the land ecological value increased only in Qianjiang city, while farmland ecological value in other cities was fal ing The conclusion is of direc-tive significance to the regional land protection policy and the farmland reasonable distribution, for Wuhan Metropolitan Area and other areas.

The Highest and Best Use of Agricultural Land in a Multifunctional Land Market, Evidence from South Africa

Agricultural land has conventionally been perceived primarily as a production factor. For this reason the highest and best use （HBU） of such land was considered to be agricultural production for income purposes. The transition towards a multifunctional agricultural land market, where alternative uses--such as for lifestyle purposes--is evident, has challenged this view. Lifestyle buyers of farms often focus on a variety of characteristics of agricultural land which are not necessarily related to income but usually more intangible and subjective, which pose a measurement problem for valuers. The continued use of familiar traditional farming characteristics when valuing agricultural properties where lifestyle motivations are present, and the exclusion of less measurable characteristics, means that the market sales comparison method cannot be executed accurately. This study used a mixed methods research strategy to determine whether valuers use characteristics mainly related to agricultural production as HBU in valuations of agricultural properties bought for lifestyle purposes, and to identify the value attributes of farms that attract lifestyle buyers （and whether these differ from production oriented buyers）. This was done in an intensive and extensive agricultural area within the Western Cape Province of South Africa. Results indicate that valuers use familiar production related characteristics when valuing farms bought for lifestyle purposes, while lifestyle and production oriented buyers also interpret the value attributes of agricultural properties differently. For this reason a multiple perspective approach to agricultural land valuations where the HBU is uncertain is proposed.