Data on discrete,isolated attributes of the marine economy are often used in traditional marine economic research.However,as the focus of urban research shifts from internal static attributes to external dynamic linka...Data on discrete,isolated attributes of the marine economy are often used in traditional marine economic research.However,as the focus of urban research shifts from internal static attributes to external dynamic linkages,the importance of marine economic net-work research is beginning to emerge.The construction of the marine economic network in China’s coastal areas is necessary to change the flow of land and sea resources and optimize regional marine economic development.Employing data from headquarters and branches of sea-related A-share listed enterprises to construct the marine economic network in China,we use social network analysis(SNA)to discuss the characteristics of its evolution as of 2010,2015,and 2020 and its governance.The following results were obtained.1)In terms of topological characteristics,the scale of the marine economic network in China’s coastal areas has accelerated and expan-ded,and the connections have become increasingly close;thus,this development has complex network characteristics.2)In terms of spatial structure,the intensity of the connection fluctuates and does not form stable development support;the group structure gradually becomes clear,but the overall pattern is fragmented;there are spatial differences in marine economic agglomeration radiation;the radi-ation effect of the eastern marine economic circle is obvious;and the polarization effect of northern and southern marine economic circles is significant.On this basis,we construct a framework for the governance of a marine economic network with the market,the government,and industry as the three governing bodies.By clarifying the driving factors and building objectives of marine economic network construction,this study aims to foster the high-quality development of China’s marine economy.展开更多
The primary purpose of this research was to give suitable irrigation program according to the growth period and water requirement.A cotton field experiment with mulched drip irrigation was conducted at the National Fi...The primary purpose of this research was to give suitable irrigation program according to the growth period and water requirement.A cotton field experiment with mulched drip irrigation was conducted at the National Field Observation and Research Station for Oasis Farmland Ecosystem in Aksu of Xinjiang in 2008.Water balance method was adopted to study the water requirement and water consumption law of cotton under mulched drip irrigation in Tarim Irrigated Area.Statistical analysis of experimental data of irrigation indicates that the relationship between yield of cotton and irrigation presents a quadratic parabola.We fit the model of cotton water production on the basis of field experimental data of cotton.And the analysis on water saving benefit of cotton under mulched drip irrigation was done.Results indicate that water requirements for the irrigated cotton are 543 mm in Tarim Irrigated Area.The water requirements of seedling stage is 252 mm,budding stage is 186 mm,bolling stage is 316 mm and wadding stage is 139 mm.the irrigation amount determines the spatial distribution of soil moisture and water consumption during cotton life cycle.However,water consumption at different growth stages was inconsistent with irrigation.Quantitatively,the water consumed by cotton decreases upon the increase of irrigation amount.From the perspective of water saving,the maximal water use efficiency can reach 3 091 m3/ha.But the highest cotton yield needs 3464 m3/ha irrigation water.In summary,compared to the conventional drip irrigation,a number of benefits in water saving and yield increase were observed when using plastic mulch.At the same amount of irrigation,the cotton yield with plastic mulch was 30.2% higher than conventional approaches,and the efficiency of water utilization increased by30.2%.While at the same yield level,29.3% water was saved by using plastic mulch,and the efficiency increased by 41.5%.展开更多
Green manure use in China has declined rapidly since the 1980 s with the extensive use of chemical fertilizers.The deterioration of field environments and the demand for green agricultural products have resulted in mo...Green manure use in China has declined rapidly since the 1980 s with the extensive use of chemical fertilizers.The deterioration of field environments and the demand for green agricultural products have resulted in more attention to green manure.Human intervention and policy-oriented behaviors likely have large impacts on promoting green manure planting.However,little information is available regarding on where,at what rates,and in which ways(i.e.,intercropping green manure in orchards or rotating green manure in cropland) to develop green manure and what benefits could be gained by incorporating green manure in fields at the county scale.This paper presents the conversion of land use and its effects at small region extent(CLUE-S) model,which is specifically developed for the simulation of land use changes originally,to predict spatial distribution of green manure in cropland and orchards in 2020 in Pinggu District located in Beijing,China.Four types of land use for planting or not planting green manure were classified and the future land use dynamics(mainly croplands and orchards) were considered in the prediction.Two scenarios were used to predict the spatial distribution of green manure based on data from 2011:The promotion of green manure planting in orchards(scenario 1) and the promotion of simultaneous green manure planting in orchards and croplands(scenario 2).The predictions were generally accurate based on the receiver operating characteristic(ROC) and Kappa indices,which validated the effectiveness of the CLUE-S model in the prediction.In addition,the spatial distribution of the green manure was acquired,which indicated that green manure mainly located in the orchards of the middle and southern regions of Dahuashan,the western and southern regions of Wangxinzhuang,the middle region of Shandongzhuang,the eastern region of Pinggu and the middle region of Xiagezhuang under scenario 1.Green manure planting under scenario 2 occurred in orchards in the middle region of Wangxinzhuang,and croplands in most regions of Daxingzhuang,southern Pinggu,northern Xiagezhuang and most of Mafang.The spatially explicit results allowed for the assessment of the benefits of these changes based on different economic and ecological indicators.The economic and ecological gains of scenarios 1 and 2 were 175691 900 and143000 300 CNY,respectively,which indicated that the first scenario was more beneficial for promoting the same area of green manure.These results can facilitate policies of promoting green manure and guide the extensive use of green manure in local agricultural production in suitable ways.展开更多
The Sino-U.S. trade imbalance and the related debate on RMB appreciation have attracted much attention in recent years. Judging objectively, however, the trade imbalance does not necessarily result in an imbalance in ...The Sino-U.S. trade imbalance and the related debate on RMB appreciation have attracted much attention in recent years. Judging objectively, however, the trade imbalance does not necessarily result in an imbalance in the distribution of trade benefits. By analyzing the distribution of benefits in Sino-U.S. trade from 1978 to 2007, this paper finds that bilateral trade has brought positive benefits to both sides, differentially in terms of production and consumption. Simply put, China has gained benefits for production yet suffered in terms of consumption, whereas the opposite is true for the U.S.. Moreover, even during periods in which the U.S. experienced a trade deficit, its citizens gained larger total individual benefits than those in a period of trade surplus. We argue, therefore, that appreciation of the RMB would reduce the trade benefits for both sides by almost the same margin, bringing little benefit to the United States.展开更多
To meet the requirements of a socialist market economy and overcome the inherent sharp contradictions of the former taxation system, China began reforming the structure of its tax system this year. The structural refo...To meet the requirements of a socialist market economy and overcome the inherent sharp contradictions of the former taxation system, China began reforming the structure of its tax system this year. The structural reform has been carried out under theguidelines of unifying the tax law, creating equal treatment, simplifying the tax system, building up a rational tax revenue sharing system, redressing distribution relationships, standardizing the mode展开更多
The most important target of the financial management is to develop the values of the foundation and develop the wealth of shareholders (wealth of the owners), which is the primary target of the qualified and succes...The most important target of the financial management is to develop the values of the foundation and develop the wealth of shareholders (wealth of the owners), which is the primary target of the qualified and successful financial management. This target, developing the value of the foundation, depends on the total profit that could be achieved by the company and counting the profit per share, but undoubtedly, the financial management should consider the other targets such as social responsibility and exchange between risk and revenue and others. This research, with its both theoretical and practical aspects, aims at illuminating the value of some foundations in Saudi Arabia, which are already registered in the stock market, by comparing the value of each foundation using two models namely the model of Modigliani-Miller (M&M) and the model of Gordon. In spite of the difficulties found in the usage of both models, especially Gordon's model, we will use both of them to explain the aspects of imperfection in each model. This research will depend on a sample of Sandi industrial companies by getting financial data of these companies over a past decade and the usage of these data, in other words, to measure the value of Saudi companies against the market.展开更多
CHINA and Africa have been a commu- nity of shared interests and shared destiny Their collaboration benefits not only the development of China and Africa but also promotes the unity and cooperation of developing count...CHINA and Africa have been a commu- nity of shared interests and shared destiny Their collaboration benefits not only the development of China and Africa but also promotes the unity and cooperation of developing countries. Health cooperation is a powerful testimony to the friendship between Chinese and African people. Based on win-win cooperation and aiming at the well-being of the people, China and Africa have attained fruitful results through health cooperation over the last five decades.展开更多
Based on the determinative factors school of capital structure theory, this paper uses the data of 35 Chinese energy listed companies from 2000 to 2003, and adopts multi-variable regression method to make an empirical...Based on the determinative factors school of capital structure theory, this paper uses the data of 35 Chinese energy listed companies from 2000 to 2003, and adopts multi-variable regression method to make an empirical study of the influencing factors of their capital structure. The results indicate that the factors of size, income volatility, and the concentration of owner’s equity have positive relation with the capital structure, while the relation between profit- ability and capital structure is negative. It is also found that the influencing of growth and secured asset on the capital structure are relatively insignificant.展开更多
Relations between China and Malaysia have been developing steadily.Recently,See Chee Kong Leonard,Business Minister of Embassy of Malaysia in PRC,accepted an interview with Chinas Foreign Tradey and talked about the 4...Relations between China and Malaysia have been developing steadily.Recently,See Chee Kong Leonard,Business Minister of Embassy of Malaysia in PRC,accepted an interview with Chinas Foreign Tradey and talked about the 45 years of economic and trade cooperation and achievements of the two countries.展开更多
China’s feed companies in China are looking to strengthen safety control substantially according to the highest international standard. The first step will be improving the feed safety control in the pre-mixture and ...China’s feed companies in China are looking to strengthen safety control substantially according to the highest international standard. The first step will be improving the feed safety control in the pre-mixture and compound feed production. The next step will be extending展开更多
The paper analyzed the development and features of China's oil companies' overseas business in 2016.Despite the plummeting crude price and a weak global economy,these companies managed to do well in foreign co...The paper analyzed the development and features of China's oil companies' overseas business in 2016.Despite the plummeting crude price and a weak global economy,these companies managed to do well in foreign countries.They steadily increased their shares of oil and gas in overseas oil and gas projects with their distinctive and unique ways:the three state-owned oil companies had focused on the countries involved in the One-BeltOne-Road Initiative,and others had been stressed more on international cooperation in a broader sense and areas.The small-and middle-scale companies had been matured and grew during the process.The central and local governments also played indispensable roles by providing need support for the cooperations.展开更多
In face of the rapid fall in prices on theworld petrochemical product market, ChinaPetrochemical International Business YangziCorporation (CPIBYZC) took active meas-ures to regulate its product mix, and by theend of N...In face of the rapid fall in prices on theworld petrochemical product market, ChinaPetrochemical International Business YangziCorporation (CPIBYZC) took active meas-ures to regulate its product mix, and by theend of November 1996, it had earned foreignexchange through the export of US$76 mil-lion, emerging from the quagmire of foreigntrade. The import and export operations ofthe very large Yangzi Petrochemical Corpo-展开更多
As the impact of the global energy crisis deepens,traditional oil resources are exhausted,and the harm caused by air pollution and rising global temperatures is increasingly severe;the government and automobile enterp...As the impact of the global energy crisis deepens,traditional oil resources are exhausted,and the harm caused by air pollution and rising global temperatures is increasingly severe;the government and automobile enterprises generally believe that energy saving and emission reduction is the future technology development direction of the automobile industry.The main direction of the attack is the general trend of new energy vehicles to replace traditional vehicles.As a leader in new energy pure electric vehicles,Tesla Motors has created a new concept of using the Internet for manufacturing cars and opened up a new brand segment of the automobile market.This paper mainly uses the PEST analysis model and Porter’s Five Forces analysis model to understand the essence of Tesla is not a pure electric vehicle manufacturer,but a high-tech innovation driver at the forefront of the world.Based on the PEST model analysis,Tesla’s development is still at the right time and place despite the impact of COVID-19.From Porter’s Five Forces model,Tesla has higher bargaining power and a strong dominant position with upstream suppliers and service providers.Tesla has a first-mover advantage due to its customers’weak bargaining power,which lets Tesla’s leading position in the industry cannot be surpassed in the short term.展开更多
The Yangzi Petrochemical Company is the first one among domestic aromatics manufacturers to adopt the UOP’s latest novel adsorbent during quality upgrading of its No.2 xylene unit.On October 23,2013 this unit has bee...The Yangzi Petrochemical Company is the first one among domestic aromatics manufacturers to adopt the UOP’s latest novel adsorbent during quality upgrading of its No.2 xylene unit.On October 23,2013 this unit has been continuously delivering xylene product with a purity展开更多
Why could Kingway, brand of Shenzhen Brewery CompanyLimited (SBC). in so short time realize its dream and acquire glories? What is its secret in success? What do itsdecision-makers look like? With all these questions,...Why could Kingway, brand of Shenzhen Brewery CompanyLimited (SBC). in so short time realize its dream and acquire glories? What is its secret in success? What do itsdecision-makers look like? With all these questions, reporter interviewed mangaer general Yuan Youjian.展开更多
基金Under the auspices of the Key Research Base of Humanities and Social Sciences of the Ministry of Education of China(No.22JJD790029)。
文摘Data on discrete,isolated attributes of the marine economy are often used in traditional marine economic research.However,as the focus of urban research shifts from internal static attributes to external dynamic linkages,the importance of marine economic net-work research is beginning to emerge.The construction of the marine economic network in China’s coastal areas is necessary to change the flow of land and sea resources and optimize regional marine economic development.Employing data from headquarters and branches of sea-related A-share listed enterprises to construct the marine economic network in China,we use social network analysis(SNA)to discuss the characteristics of its evolution as of 2010,2015,and 2020 and its governance.The following results were obtained.1)In terms of topological characteristics,the scale of the marine economic network in China’s coastal areas has accelerated and expan-ded,and the connections have become increasingly close;thus,this development has complex network characteristics.2)In terms of spatial structure,the intensity of the connection fluctuates and does not form stable development support;the group structure gradually becomes clear,but the overall pattern is fragmented;there are spatial differences in marine economic agglomeration radiation;the radi-ation effect of the eastern marine economic circle is obvious;and the polarization effect of northern and southern marine economic circles is significant.On this basis,we construct a framework for the governance of a marine economic network with the market,the government,and industry as the three governing bodies.By clarifying the driving factors and building objectives of marine economic network construction,this study aims to foster the high-quality development of China’s marine economy.
基金Supported by 973 Project(2009CB421302)Innovation Project of Chinese Academy of Sciences(KZCX2-YW-127)Youth Science Foundation of China(41401025)
文摘The primary purpose of this research was to give suitable irrigation program according to the growth period and water requirement.A cotton field experiment with mulched drip irrigation was conducted at the National Field Observation and Research Station for Oasis Farmland Ecosystem in Aksu of Xinjiang in 2008.Water balance method was adopted to study the water requirement and water consumption law of cotton under mulched drip irrigation in Tarim Irrigated Area.Statistical analysis of experimental data of irrigation indicates that the relationship between yield of cotton and irrigation presents a quadratic parabola.We fit the model of cotton water production on the basis of field experimental data of cotton.And the analysis on water saving benefit of cotton under mulched drip irrigation was done.Results indicate that water requirements for the irrigated cotton are 543 mm in Tarim Irrigated Area.The water requirements of seedling stage is 252 mm,budding stage is 186 mm,bolling stage is 316 mm and wadding stage is 139 mm.the irrigation amount determines the spatial distribution of soil moisture and water consumption during cotton life cycle.However,water consumption at different growth stages was inconsistent with irrigation.Quantitatively,the water consumed by cotton decreases upon the increase of irrigation amount.From the perspective of water saving,the maximal water use efficiency can reach 3 091 m3/ha.But the highest cotton yield needs 3464 m3/ha irrigation water.In summary,compared to the conventional drip irrigation,a number of benefits in water saving and yield increase were observed when using plastic mulch.At the same amount of irrigation,the cotton yield with plastic mulch was 30.2% higher than conventional approaches,and the efficiency of water utilization increased by30.2%.While at the same yield level,29.3% water was saved by using plastic mulch,and the efficiency increased by 41.5%.
基金supported by the Special Fund for Agroscientific Research in the Public Interest,China(20110300501-01)the Special Fund for First-Class University (4572-18101510)
文摘Green manure use in China has declined rapidly since the 1980 s with the extensive use of chemical fertilizers.The deterioration of field environments and the demand for green agricultural products have resulted in more attention to green manure.Human intervention and policy-oriented behaviors likely have large impacts on promoting green manure planting.However,little information is available regarding on where,at what rates,and in which ways(i.e.,intercropping green manure in orchards or rotating green manure in cropland) to develop green manure and what benefits could be gained by incorporating green manure in fields at the county scale.This paper presents the conversion of land use and its effects at small region extent(CLUE-S) model,which is specifically developed for the simulation of land use changes originally,to predict spatial distribution of green manure in cropland and orchards in 2020 in Pinggu District located in Beijing,China.Four types of land use for planting or not planting green manure were classified and the future land use dynamics(mainly croplands and orchards) were considered in the prediction.Two scenarios were used to predict the spatial distribution of green manure based on data from 2011:The promotion of green manure planting in orchards(scenario 1) and the promotion of simultaneous green manure planting in orchards and croplands(scenario 2).The predictions were generally accurate based on the receiver operating characteristic(ROC) and Kappa indices,which validated the effectiveness of the CLUE-S model in the prediction.In addition,the spatial distribution of the green manure was acquired,which indicated that green manure mainly located in the orchards of the middle and southern regions of Dahuashan,the western and southern regions of Wangxinzhuang,the middle region of Shandongzhuang,the eastern region of Pinggu and the middle region of Xiagezhuang under scenario 1.Green manure planting under scenario 2 occurred in orchards in the middle region of Wangxinzhuang,and croplands in most regions of Daxingzhuang,southern Pinggu,northern Xiagezhuang and most of Mafang.The spatially explicit results allowed for the assessment of the benefits of these changes based on different economic and ecological indicators.The economic and ecological gains of scenarios 1 and 2 were 175691 900 and143000 300 CNY,respectively,which indicated that the first scenario was more beneficial for promoting the same area of green manure.These results can facilitate policies of promoting green manure and guide the extensive use of green manure in local agricultural production in suitable ways.
文摘The Sino-U.S. trade imbalance and the related debate on RMB appreciation have attracted much attention in recent years. Judging objectively, however, the trade imbalance does not necessarily result in an imbalance in the distribution of trade benefits. By analyzing the distribution of benefits in Sino-U.S. trade from 1978 to 2007, this paper finds that bilateral trade has brought positive benefits to both sides, differentially in terms of production and consumption. Simply put, China has gained benefits for production yet suffered in terms of consumption, whereas the opposite is true for the U.S.. Moreover, even during periods in which the U.S. experienced a trade deficit, its citizens gained larger total individual benefits than those in a period of trade surplus. We argue, therefore, that appreciation of the RMB would reduce the trade benefits for both sides by almost the same margin, bringing little benefit to the United States.
文摘To meet the requirements of a socialist market economy and overcome the inherent sharp contradictions of the former taxation system, China began reforming the structure of its tax system this year. The structural reform has been carried out under theguidelines of unifying the tax law, creating equal treatment, simplifying the tax system, building up a rational tax revenue sharing system, redressing distribution relationships, standardizing the mode
文摘The most important target of the financial management is to develop the values of the foundation and develop the wealth of shareholders (wealth of the owners), which is the primary target of the qualified and successful financial management. This target, developing the value of the foundation, depends on the total profit that could be achieved by the company and counting the profit per share, but undoubtedly, the financial management should consider the other targets such as social responsibility and exchange between risk and revenue and others. This research, with its both theoretical and practical aspects, aims at illuminating the value of some foundations in Saudi Arabia, which are already registered in the stock market, by comparing the value of each foundation using two models namely the model of Modigliani-Miller (M&M) and the model of Gordon. In spite of the difficulties found in the usage of both models, especially Gordon's model, we will use both of them to explain the aspects of imperfection in each model. This research will depend on a sample of Sandi industrial companies by getting financial data of these companies over a past decade and the usage of these data, in other words, to measure the value of Saudi companies against the market.
文摘CHINA and Africa have been a commu- nity of shared interests and shared destiny Their collaboration benefits not only the development of China and Africa but also promotes the unity and cooperation of developing countries. Health cooperation is a powerful testimony to the friendship between Chinese and African people. Based on win-win cooperation and aiming at the well-being of the people, China and Africa have attained fruitful results through health cooperation over the last five decades.
文摘Based on the determinative factors school of capital structure theory, this paper uses the data of 35 Chinese energy listed companies from 2000 to 2003, and adopts multi-variable regression method to make an empirical study of the influencing factors of their capital structure. The results indicate that the factors of size, income volatility, and the concentration of owner’s equity have positive relation with the capital structure, while the relation between profit- ability and capital structure is negative. It is also found that the influencing of growth and secured asset on the capital structure are relatively insignificant.
文摘Relations between China and Malaysia have been developing steadily.Recently,See Chee Kong Leonard,Business Minister of Embassy of Malaysia in PRC,accepted an interview with Chinas Foreign Tradey and talked about the 45 years of economic and trade cooperation and achievements of the two countries.
文摘China’s feed companies in China are looking to strengthen safety control substantially according to the highest international standard. The first step will be improving the feed safety control in the pre-mixture and compound feed production. The next step will be extending
文摘The paper analyzed the development and features of China's oil companies' overseas business in 2016.Despite the plummeting crude price and a weak global economy,these companies managed to do well in foreign countries.They steadily increased their shares of oil and gas in overseas oil and gas projects with their distinctive and unique ways:the three state-owned oil companies had focused on the countries involved in the One-BeltOne-Road Initiative,and others had been stressed more on international cooperation in a broader sense and areas.The small-and middle-scale companies had been matured and grew during the process.The central and local governments also played indispensable roles by providing need support for the cooperations.
文摘In face of the rapid fall in prices on theworld petrochemical product market, ChinaPetrochemical International Business YangziCorporation (CPIBYZC) took active meas-ures to regulate its product mix, and by theend of November 1996, it had earned foreignexchange through the export of US$76 mil-lion, emerging from the quagmire of foreigntrade. The import and export operations ofthe very large Yangzi Petrochemical Corpo-
文摘As the impact of the global energy crisis deepens,traditional oil resources are exhausted,and the harm caused by air pollution and rising global temperatures is increasingly severe;the government and automobile enterprises generally believe that energy saving and emission reduction is the future technology development direction of the automobile industry.The main direction of the attack is the general trend of new energy vehicles to replace traditional vehicles.As a leader in new energy pure electric vehicles,Tesla Motors has created a new concept of using the Internet for manufacturing cars and opened up a new brand segment of the automobile market.This paper mainly uses the PEST analysis model and Porter’s Five Forces analysis model to understand the essence of Tesla is not a pure electric vehicle manufacturer,but a high-tech innovation driver at the forefront of the world.Based on the PEST model analysis,Tesla’s development is still at the right time and place despite the impact of COVID-19.From Porter’s Five Forces model,Tesla has higher bargaining power and a strong dominant position with upstream suppliers and service providers.Tesla has a first-mover advantage due to its customers’weak bargaining power,which lets Tesla’s leading position in the industry cannot be surpassed in the short term.
文摘The Yangzi Petrochemical Company is the first one among domestic aromatics manufacturers to adopt the UOP’s latest novel adsorbent during quality upgrading of its No.2 xylene unit.On October 23,2013 this unit has been continuously delivering xylene product with a purity
文摘Why could Kingway, brand of Shenzhen Brewery CompanyLimited (SBC). in so short time realize its dream and acquire glories? What is its secret in success? What do itsdecision-makers look like? With all these questions, reporter interviewed mangaer general Yuan Youjian.