To elucidate the genetic relationship of the soybean varieties registered in Henan province, we analyzed the pedigrees, the major agronomic traits, and the eco- nomic traits of 74 soybean varieties registered in Henan...To elucidate the genetic relationship of the soybean varieties registered in Henan province, we analyzed the pedigrees, the major agronomic traits, and the eco- nomic traits of 74 soybean varieties registered in Henan province from 1985 to 2012, with reference to experience and technologies beneficial to breeding. The resuits indicated that these varieties originated from 113 parents, and positive correla- tion between the yield and the number of original parents was significant. In the major agronomic traits, the growth stage was about 106 days with relatively small variation, while the final height varied largely among these varieties. Among the fac- tore affecting the final yield, the pod number per plant exhibited an increasing trend, while the variation of 100-grain weight was relatively small. More than 50% of the 113 original parents came from Henan Province and its neighbor provinces, and the genetic relationship among the registered varieties was too close. The rational criteria of yield components of soybean varieties in Henan Province should be as fol- lows： the pod number per plant was about 48. 6, with 100-grain weight ranging from 17.55 g to 21.80 g.展开更多
The economic system of mining city is of typical vulnerability characteristics that can be manifested by its high economic sensitivity and lack of response capacity to the gradual depletion of regional mineral resourc...The economic system of mining city is of typical vulnerability characteristics that can be manifested by its high economic sensitivity and lack of response capacity to the gradual depletion of regional mineral resources. Taking Fuxin City of Liaoning Province as a case, this paper established an economic vulnerability assessment method integrating BP neural network with vulnerability index, then carried out an economic vulnerability assessment of Fuxin during 1989-2006. The results indicate that: 1) Affected by the gradual depletion of regional mineral resources, the economic development of Fuxin had kept high economic sensitivity from 1995 to 2001, and the response capacity to cope with and adapt to the impacts of the perturbation of mineral resources was weak and relatively lag. The evolution of economic vulnerability can be divided into three stages: in 1989-1994, the economic vulnerability of Fuxin City decreased slowly; in 1995-2001, the beginning stage of economic transformation, the economic vulnerability of Fuxin City went up rapidly; in 2002-2006, the economic vulnerability of Fuxin City descended and showed a trend to be stable. 2) The influence of economic sensitivity on Fuxin′s economic vulnerability is more evident than that of response capacity. 3) The decreasing supply of mineral resources and the simple industrial structure are main factors leading to the economic sensitivity of Fuxin. 4) The improvement of economic response capacity of Fuxin has typical characteristics of input-driven growth, and external assistance is of great importance to the rapid improvement of economic response capacity of Fuxin. And 5) the change from the simple industrial structure to diversified one of Fuxin is still unaccomplished, and the contribution of non-coal-based industry to local economic development is relatively limited.展开更多
Urbanization is a crucial criterion of assessing a nation’s or a particular region’s level of modernization.It has been accelerated all over the world in the 21th century.The main purpose of this research is to prov...Urbanization is a crucial criterion of assessing a nation’s or a particular region’s level of modernization.It has been accelerated all over the world in the 21th century.The main purpose of this research is to provide a strategy of spatial pattern of urbanization for rural areas in Jilin Province based on the reality of economic development in Jilin and the im-balance of natural resources distribution.The strategy divides the nine central cities of Jilin Province into three economic circles.The outer economic circle,open circle,includes Yanbian,Baishan,Tonghua and Baicheng,covering the eastern and western parts of Jilin Province.The middle one includes Jilin,Liaoyuan,Siping and Songyuan.The inner one,centring as Changchun,includes Gongzhuling,Yitong,Nong’an,Jiutai and Dehui.It needs to centre as Changchun which has the good foundation of economic development and more economic increase,then by economic effect extending out gradually,other areas develop subsequently.To construct Jilin as a green ecological province,cultivation in the outer circle should be con-trolled,with the main aim to recover grassland.Large population should be moved to other places by developing labor economy.From economy and ecology,to decrease the load of the land can reduce the loss of the resources and benefit the balance of ecology.Subsequently,the whole province’s economy will be developed sustainably.展开更多
The 2000s has witnessed increasing interests in cities′role of innovation in the era of knowledge-based economy.Compared with substantial empirical analysis on the world city hierarchy of innovation,this paper attemp...The 2000s has witnessed increasing interests in cities′role of innovation in the era of knowledge-based economy.Compared with substantial empirical analysis on the world city hierarchy of innovation,this paper attempts to examine the national urban hierarchy of innovation capability in China,in terms of ranking systems,spatial pattern and inter-city linkages of knowledge during the post-reform period since the late 1970s.Based on quantitative analysis such as principal component factor analysis and clustering analysis,this paper identifies the five-tier hierarchy of in-novation,which is headed by Beijing and Shanghai,followed by the capital cities of each province and regional centre cities.The development of China′s urban hierarchy of innovation capability has been driven by such factors as the scale of innovation,scientific scale,innovation potential and innovation environment.The paper further investigates the inter-city linkages of knowledge measured by the number of co-authored papers among the cities.Beijing is positioned in the central position of the knowledge diffusion and knowledge cooperation innovation.More knowledge diffusion among high level cities has occurred than that among the low level cities as well as between the low level cities and high level cities,and provincial capital cities and the regional central cities.展开更多
The paper analyses the periodical characteristics of the economic development of Shandong Province by using the mini- mum variation analysis model.The analysis shows that the eco- nomic development process of Shandong...The paper analyses the periodical characteristics of the economic development of Shandong Province by using the mini- mum variation analysis model.The analysis shows that the eco- nomic development process of Shandong Province has short, medium and long cycles respectively for 6,12,19 years,and the fluctuation of the economic development becomes gentler with time passing by.The fluctuation of macro-control policy,invest- ment and consumption are the main reasons of the economic fluc- tuation.展开更多
Climate change is one of the most important challenges threatening agricultural grain yield and food security. Determining the factors influencing grain yield in Jilin Province and the weights of their contribution ar...Climate change is one of the most important challenges threatening agricultural grain yield and food security. Determining the factors influencing grain yield in Jilin Province and the weights of their contribution are a very important task, because Jilin Province is an important agriculture base in China. In this study, the accumulation factor sequence evaluating data method was used to analyze the climate and economic-technical factor contribution weights to grain yield and grain yield changes in each city of Jilin Province. Climate yield was also estimated to study the climate effect on the grain yield, and it was calculated in two ways： an improved algorithm and a traditional quadratic method. The results show that the climate and economicechnical factors have different contribution weights to grain yield in different cities in Jilin Province. The contribution weight of the climate factor to grain yield was 0.212-0.349, while that the economic-technical factor was 0.651-0.788. Furthermore, the changes of the climate factor contributing to grain yield changes accounted for 0.296-0.546, and the changes of the economic-technical factor accounted for 0.454-0.704. The weights of climate and economic-technical factor contributing to grain yield are very different between the eastern and western cities in Jilin Province, but their weights contributing to the grain yield change are similar in these cities. In general, the amount of fertilizer used per hectare （FUPH） is the main factor affecting grain yields and yield changes from 1980 to 2008. It is noted that when the FUPH growth rate stabilized after 1995, the effects of the climate factor on the grain yield become more obvious than before. The improved algorithm is effective for esti- mating climate yield in Jilin Province, and the climate yields were mostly between -500 kg/ha and 500 kg/ha, and showed a slightly rising trend in most cities.展开更多
It is an urgent and important economic work in the moment and the next period for China to realize the transformation of economic growth mode. Relatively, there must be certain basic conditions. This article makes ela...It is an urgent and important economic work in the moment and the next period for China to realize the transformation of economic growth mode. Relatively, there must be certain basic conditions. This article makes elaboration of the basic conditions, which accelerate the change of Shaanxi＇s economic growth mode from government angle, and proposes countermeasures for it, according to Shaanxi＇s situation and the requirement of scientific development concept, in order to provide basis for the government＇s economic growth transformation.展开更多
＂Buddha Jumps over the Wall,＂also known as＂Fu Shou Quan,＂a wish for good fortune and long life,is a well-known Fujian dish that originated during the reign of Qing Emperor Daoguang（1821—1850）.It was created by ...＂Buddha Jumps over the Wall,＂also known as＂Fu Shou Quan,＂a wish for good fortune and long life,is a well-known Fujian dish that originated during the reign of Qing Emperor Daoguang（1821—1850）.It was created by Zheng Chunfa,celebrated chef and proprietor of the Ju Chun Yuan Restaurant in Fuzhou,Fujian Province.展开更多
The choice of employment destination is the basis of migrant workers＇ spatial flow, the study on the choice of employment destination is helpful to understand the spatial law of migrant workers＇ flow from a micro pe...The choice of employment destination is the basis of migrant workers＇ spatial flow, the study on the choice of employment destination is helpful to understand the spatial law of migrant workers＇ flow from a micro perspective. Through the case study on 11 sample villages generated by the random stratified sampling in Henan Province, authors of this paper find that the distribution of destinations is dispersed in a large area while concentrated in certain places. Most of the destinations are in counties and outside Henan Province. Migrant workers are mainly concentrated in the economically more developed eastern provinces. The central, though a big source of migrant workers, has not formed a core employment area for migrant workers. The main factors influencing migrant workers＇ choice of employment distances include age, family size, per capita arable land, the village＇s economic development level, the village terrain, transportation, its distance from the nearest city, and workers＇ relationship networks. From the perspective of employment destinations, on a provincial scale, the employment attraction coefficient based on the destination＇s level of economic development and the employment distance, efficiently explains farmers＇ choice of destinations, that is, destinations with a more developed economy and a shorter employment distance are the top choice for migrant workers.展开更多
Geographical indication is indication not only of origin but also of quality, and what＇s more, it is a kind of intellectual property rights. The paper analyzes the problems of geographical indication in Shanxi provin...Geographical indication is indication not only of origin but also of quality, and what＇s more, it is a kind of intellectual property rights. The paper analyzes the problems of geographical indication in Shanxi province by comparison with six provinces of Central China, suggesting that in order to actively expand protective space of geographical indication, two key things should be done： Firstly, the transition from resource advantages to brand advantages should be actively promoted; secondly, the governments and industry associations should play their effective roles.展开更多
基金Supported by National Soybean Industrial Technology Support Program(nycytx-004)National Scientific and Technological Innovation ProgramIndigenuous Innovative Program of Henan Academy of Agricultural Science~~
文摘To elucidate the genetic relationship of the soybean varieties registered in Henan province, we analyzed the pedigrees, the major agronomic traits, and the eco- nomic traits of 74 soybean varieties registered in Henan province from 1985 to 2012, with reference to experience and technologies beneficial to breeding. The resuits indicated that these varieties originated from 113 parents, and positive correla- tion between the yield and the number of original parents was significant. In the major agronomic traits, the growth stage was about 106 days with relatively small variation, while the final height varied largely among these varieties. Among the fac- tore affecting the final yield, the pod number per plant exhibited an increasing trend, while the variation of 100-grain weight was relatively small. More than 50% of the 113 original parents came from Henan Province and its neighbor provinces, and the genetic relationship among the registered varieties was too close. The rational criteria of yield components of soybean varieties in Henan Province should be as fol- lows： the pod number per plant was about 48. 6, with 100-grain weight ranging from 17.55 g to 21.80 g.
基金Under the auspices of Key Program of National Natural Science Foundation of China (No. 40635030)Knowledge Innovation Programs of the Chinese Academy of Sciences (No. KZCX2-YW-342, No. KZCX2-YW-321)
文摘The economic system of mining city is of typical vulnerability characteristics that can be manifested by its high economic sensitivity and lack of response capacity to the gradual depletion of regional mineral resources. Taking Fuxin City of Liaoning Province as a case, this paper established an economic vulnerability assessment method integrating BP neural network with vulnerability index, then carried out an economic vulnerability assessment of Fuxin during 1989-2006. The results indicate that: 1) Affected by the gradual depletion of regional mineral resources, the economic development of Fuxin had kept high economic sensitivity from 1995 to 2001, and the response capacity to cope with and adapt to the impacts of the perturbation of mineral resources was weak and relatively lag. The evolution of economic vulnerability can be divided into three stages: in 1989-1994, the economic vulnerability of Fuxin City decreased slowly; in 1995-2001, the beginning stage of economic transformation, the economic vulnerability of Fuxin City went up rapidly; in 2002-2006, the economic vulnerability of Fuxin City descended and showed a trend to be stable. 2) The influence of economic sensitivity on Fuxin′s economic vulnerability is more evident than that of response capacity. 3) The decreasing supply of mineral resources and the simple industrial structure are main factors leading to the economic sensitivity of Fuxin. 4) The improvement of economic response capacity of Fuxin has typical characteristics of input-driven growth, and external assistance is of great importance to the rapid improvement of economic response capacity of Fuxin. And 5) the change from the simple industrial structure to diversified one of Fuxin is still unaccomplished, and the contribution of non-coal-based industry to local economic development is relatively limited.
基金Under the auspices of National Natural Science Foundation of China (No. 40271069, No. 4041076)
文摘Urbanization is a crucial criterion of assessing a nation’s or a particular region’s level of modernization.It has been accelerated all over the world in the 21th century.The main purpose of this research is to provide a strategy of spatial pattern of urbanization for rural areas in Jilin Province based on the reality of economic development in Jilin and the im-balance of natural resources distribution.The strategy divides the nine central cities of Jilin Province into three economic circles.The outer economic circle,open circle,includes Yanbian,Baishan,Tonghua and Baicheng,covering the eastern and western parts of Jilin Province.The middle one includes Jilin,Liaoyuan,Siping and Songyuan.The inner one,centring as Changchun,includes Gongzhuling,Yitong,Nong’an,Jiutai and Dehui.It needs to centre as Changchun which has the good foundation of economic development and more economic increase,then by economic effect extending out gradually,other areas develop subsequently.To construct Jilin as a green ecological province,cultivation in the outer circle should be con-trolled,with the main aim to recover grassland.Large population should be moved to other places by developing labor economy.From economy and ecology,to decrease the load of the land can reduce the loss of the resources and benefit the balance of ecology.Subsequently,the whole province’s economy will be developed sustainably.
基金Under the auspices of National Natural Science Foundation of China(No.41071103)Guangdong Natural Science Foundation(No.9151051501000061)+1 种基金Foundation of Humanities and Social Sciences(No.10ZGXM79006)Foundation of Guangzhou Education Bureau(No.10A030)
文摘The 2000s has witnessed increasing interests in cities′role of innovation in the era of knowledge-based economy.Compared with substantial empirical analysis on the world city hierarchy of innovation,this paper attempts to examine the national urban hierarchy of innovation capability in China,in terms of ranking systems,spatial pattern and inter-city linkages of knowledge during the post-reform period since the late 1970s.Based on quantitative analysis such as principal component factor analysis and clustering analysis,this paper identifies the five-tier hierarchy of in-novation,which is headed by Beijing and Shanghai,followed by the capital cities of each province and regional centre cities.The development of China′s urban hierarchy of innovation capability has been driven by such factors as the scale of innovation,scientific scale,innovation potential and innovation environment.The paper further investigates the inter-city linkages of knowledge measured by the number of co-authored papers among the cities.Beijing is positioned in the central position of the knowledge diffusion and knowledge cooperation innovation.More knowledge diffusion among high level cities has occurred than that among the low level cities as well as between the low level cities and high level cities,and provincial capital cities and the regional central cities.
文摘The paper analyses the periodical characteristics of the economic development of Shandong Province by using the mini- mum variation analysis model.The analysis shows that the eco- nomic development process of Shandong Province has short, medium and long cycles respectively for 6,12,19 years,and the fluctuation of the economic development becomes gentler with time passing by.The fluctuation of macro-control policy,invest- ment and consumption are the main reasons of the economic fluc- tuation.
基金Under the auspices of Knowledge Innovation Programs of Chinese Academy of Sciences(No.KSCX1-YW-09-13)China Postdoctoral Science Foundation(No.07Z7601MZ1)
文摘Climate change is one of the most important challenges threatening agricultural grain yield and food security. Determining the factors influencing grain yield in Jilin Province and the weights of their contribution are a very important task, because Jilin Province is an important agriculture base in China. In this study, the accumulation factor sequence evaluating data method was used to analyze the climate and economic-technical factor contribution weights to grain yield and grain yield changes in each city of Jilin Province. Climate yield was also estimated to study the climate effect on the grain yield, and it was calculated in two ways： an improved algorithm and a traditional quadratic method. The results show that the climate and economicechnical factors have different contribution weights to grain yield in different cities in Jilin Province. The contribution weight of the climate factor to grain yield was 0.212-0.349, while that the economic-technical factor was 0.651-0.788. Furthermore, the changes of the climate factor contributing to grain yield changes accounted for 0.296-0.546, and the changes of the economic-technical factor accounted for 0.454-0.704. The weights of climate and economic-technical factor contributing to grain yield are very different between the eastern and western cities in Jilin Province, but their weights contributing to the grain yield change are similar in these cities. In general, the amount of fertilizer used per hectare （FUPH） is the main factor affecting grain yields and yield changes from 1980 to 2008. It is noted that when the FUPH growth rate stabilized after 1995, the effects of the climate factor on the grain yield become more obvious than before. The improved algorithm is effective for esti- mating climate yield in Jilin Province, and the climate yields were mostly between -500 kg/ha and 500 kg/ha, and showed a slightly rising trend in most cities.
文摘It is an urgent and important economic work in the moment and the next period for China to realize the transformation of economic growth mode. Relatively, there must be certain basic conditions. This article makes elaboration of the basic conditions, which accelerate the change of Shaanxi＇s economic growth mode from government angle, and proposes countermeasures for it, according to Shaanxi＇s situation and the requirement of scientific development concept, in order to provide basis for the government＇s economic growth transformation.
文摘＂Buddha Jumps over the Wall,＂also known as＂Fu Shou Quan,＂a wish for good fortune and long life,is a well-known Fujian dish that originated during the reign of Qing Emperor Daoguang（1821—1850）.It was created by Zheng Chunfa,celebrated chef and proprietor of the Ju Chun Yuan Restaurant in Fuzhou,Fujian Province.
文摘The choice of employment destination is the basis of migrant workers＇ spatial flow, the study on the choice of employment destination is helpful to understand the spatial law of migrant workers＇ flow from a micro perspective. Through the case study on 11 sample villages generated by the random stratified sampling in Henan Province, authors of this paper find that the distribution of destinations is dispersed in a large area while concentrated in certain places. Most of the destinations are in counties and outside Henan Province. Migrant workers are mainly concentrated in the economically more developed eastern provinces. The central, though a big source of migrant workers, has not formed a core employment area for migrant workers. The main factors influencing migrant workers＇ choice of employment distances include age, family size, per capita arable land, the village＇s economic development level, the village terrain, transportation, its distance from the nearest city, and workers＇ relationship networks. From the perspective of employment destinations, on a provincial scale, the employment attraction coefficient based on the destination＇s level of economic development and the employment distance, efficiently explains farmers＇ choice of destinations, that is, destinations with a more developed economy and a shorter employment distance are the top choice for migrant workers.
文摘Geographical indication is indication not only of origin but also of quality, and what＇s more, it is a kind of intellectual property rights. The paper analyzes the problems of geographical indication in Shanxi province by comparison with six provinces of Central China, suggesting that in order to actively expand protective space of geographical indication, two key things should be done： Firstly, the transition from resource advantages to brand advantages should be actively promoted; secondly, the governments and industry associations should play their effective roles.
