This paper investigated the relationship between demographic structure and international capital flows with panel data of 190 countries over the past 60 years' and projection data for the 21st century. As found, from...This paper investigated the relationship between demographic structure and international capital flows with panel data of 190 countries over the past 60 years' and projection data for the 21st century. As found, from a global perspective, the current account balance (CAB) is negatively related to the dependency ratio, and orresponding to continuous change, international eapital flows tend to move from "adult countries" to "aged or young countries." Since the middle of the 20th century, the U.S., Europe, Japan, China, Southeast Asia, Central Asia, South Asia, West Asia and Africa took turns in exporting capital to other countries. In the 2lst century, Europe, the U.S., Australia and Singapore will keep importing capital, while China in the 2030s, and Southeast Asia in the 2050s will in turn become the main capital importers. Given the demographic structure of China and the world, the future pattern of the international capital flows requires more serious concern and responses.展开更多
With the development of the times,the role of human capital in economic growth has been highlighted.However,in the current academic world,the research on the topic of demographic structure and human capital accumulati...With the development of the times,the role of human capital in economic growth has been highlighted.However,in the current academic world,the research on the topic of demographic structure and human capital accumulation is not closely integrated.China is now in a period of economic transformation and upgrading,and it is urgent to change the traditional economic growth model,increase human capital investment,and cultivate new growth momentum.Therefore,this paper examines the impact of China’s population structure on human capital accumulation by constructing a mathematical model based on relevant panel data of 31 provinces(municipalities and autonomous regions)from 2001 to 2020.The empirical results show that human capital accumulation in China has a certain lagging effect,while population age and urban-rural structure enhance human capital accumulation in both quantitative and qualitative terms,respectively.In addition,industrial transformation,economic growth level,and per capita income all have significant positive effects.The effect of education,on the other hand,is not significant,while the interaction between urbanization and industrial structure may hurt it.Based on this,this paper proposes targeted countermeasures and suggestions in terms of fully developing the population quality dividend,fully tapping the talent knowledge dividend,continuously improving the health dividend,and continually tapping the aging dividend.展开更多
In most Sub-Saharan African countries such as Togo, people’s heavy dependence on ecosystem services is a major factor in accelerating the degradation of natural resources, which are already suffering as a result of c...In most Sub-Saharan African countries such as Togo, people’s heavy dependence on ecosystem services is a major factor in accelerating the degradation of natural resources, which are already suffering as a result of climatic factors. This study was initiated to contribute to the sustainable and rational management of forest resources in the south-east of the Mono Biosphere Reserve in Togo. It specifically aims to identify and characterize the flora of the residual forest ecosystems within the reserve through their specific diversity, demographic structure, and carbon sequestration potential. The study was carried out in the forest ecosystems of Avévé. The methodology used was based on the analysis of phytosociological, forestry, ecological, and regeneration inventory data. Overall, the study revealed that the RBMT still has floristically viable habitats, despite the anthropogenic pressures it is subject to revealed a floristic diversity of 160 plant species divided into 52 families and 135 genera. The most represented families are Rubiaceae (29.09%), followed by Fabaceae (27.94%). The most represented species are Mitragyna inermis (Willd.) Kuntze (24.38%), Lecaniodiscus cupanioides Planch. Ex Benth (X) and Lonchocarpus sericeus (Poir.) Kunth (10.93%). The high presence of Mitragyna inermis observed in all the ecological groups identified makes it the characteristic species of the flooded marshy areas of southeast Togo and contributes to the resilience of the ecosystems and populations in the study area. The Shannon index for the formation groups varies between (3.03 and 5.16) bits. Pielou’s equitability varies between (0.43 and 0.63) bits. The overall average density is estimated at 210 stems/ha, with an average diameter of 25.57 ± 21.77 m and an average height of 7.93 ± 3.83 m. The adjustment of the diameter classes of the plant groups to the Weibull distribution gave an “inverted J” shape with coefficient values of less than 1 overall, reflecting the existence of multispecific or uneven-aged stands. Assessment of the horizontal and vertical structure shows a predominance of the shrub layer in all the groups identified. The carbon sequestration potential is 41.89 T/Ha. Despite ongoing anthropogenic pressures, the Mono Biosphere Reserve abounds in a relatively rich diversity of flora, the preservation of which is essential for the survival of biodiversity and even for the riparian population. The data provided by this study would form the basis for sustainable management planning of the forest islands in the biosphere reserve.展开更多
In this paper it has been investigated the issue of the dynamics of the rural population in villages in the mountainous areas of the municipality of Prilep height distribution of the mountainous villages, the area siz...In this paper it has been investigated the issue of the dynamics of the rural population in villages in the mountainous areas of the municipality of Prilep height distribution of the mountainous villages, the area size, absolute density and agrarian population in hilly-mountainous villages, the distance of the hill-mountain villages of the municipality center and institutional infrastructure hilly-mountainous areas in Prilep. Despite the demographic decline that was made in the past 45 years, the municipality and the country will have even more incentive in the coming years to invest in infrastructure to improve little very bad living conditions and foremost here we think of infrastructure, roads, water drinking, clinics, veterinary stations, public transportation, gas stations, stores, construction of ethnic restaurants and small hotels so that at least the older generations of the cities as the least retirement to spend at home, to create minimum conditions for living and so that villages in hilly and mountainous villages to be attractive to younger generations of the cities and migrant workers from European countries and America Australia frequently to visit home, and to be able to invest in small commercial buildings in the area of tourism.展开更多
In order to understand the impact of demographic structure on paddy and forestland managementafter the convening of the Third Plenary Session of the 11th CPC (Communist Party of China) CentralCommittee and the impleme...In order to understand the impact of demographic structure on paddy and forestland managementafter the convening of the Third Plenary Session of the 11th CPC (Communist Party of China) CentralCommittee and the implementation of the Household Responsibility System (the government divided upland among peasants for cultivating and the peasants sell a set part of their produced goods to thegovernment at stipulated prices by contract in the countryside of China), 147 households in 6 villages,belonging to Xiangtan County and Zhuzhou County in Hunan Province, were selected as research samples,and interview, questionnaire survey and second hand data analyzing were used as the methods. The resultsshowed: Persons with different ages had different ideas, and young peasants would like to work in townsor cities for more income, so they used and depended on land less; In terms of sex, the male was still themain user of land, and therefore the ability, idea and activity of male played an important role in landmanagement; Generally, the labors with better educational background grasped more knowledge andtechnologies, and they had more opportunity to get jobs and had better working condition and moreincome in town or cities, so they depended on and used land less.展开更多
The elderly represent a growing proportion of the overall population and household's heads in Cameroon. This demographic change has some impact on the economic and social situation of the latter, in particular, the f...The elderly represent a growing proportion of the overall population and household's heads in Cameroon. This demographic change has some impact on the economic and social situation of the latter, in particular, the functioning of the family structure and solidarity between generations. The successive crises (food and financial) coupled with structural adjustment programs have in fact worsened the problems of the elderly, without having for compensation, provided the corresponding benefits for other age groups. This study contributes to the analysis of changes over time in the family support system, especially with regard to household's heads aged in Cameroon. To achieve this, the discussion turns around three questions: (1) what is the extent and nature of the ageing in Cameroon? (2) what are the demographic, economic, and social implications? and (3) what is the impact of economic and social change on intergenerational relationships? The data used come from the Population Census (1976, 1987, and 2005), and the Cameroonian Household Survey of 2007. The gradual deterioration of the support system for the family, especially due to modernization, and the current and future numbers of older should bring more policymakers to meet the specific needs of this group in Cameroon.展开更多
Introduction:Exotic invasive species represent a major driver of the loss of biological diversity and services provided by ecosystems globally.An important cause of species becoming invasive is the development of comm...Introduction:Exotic invasive species represent a major driver of the loss of biological diversity and services provided by ecosystems globally.An important cause of species becoming invasive is the development of commercial afforestation projects using fast-growing and adaptable exotic species,which may become invasive impacting natural environments.The tropical ash(Fraxinus uhdei),native to México,has been widely introduced to Colombia and other countries for timber,live fences,and urban greening.It is now common in many areas of the tropical mountains and has been observed expanding into native forests in Colombia.This study examined the invasion pattern and the demographic structure of tropical ash in remnant Andean forests in Colombia,to find out factors associated with the invasion process.The analysis took into account biotic and physical factors:distance to propagule source,vegetation cover types,and understory and canopy cover.Results:Although the reproductive strategy of the tropical ash is of“r”type with low survival rates,the results show evidence for an active process of invasion characterized by an aggregated distribution pattern dominated by seedlings and juvenile plants.The study shows the existence of an interaction between the distance to propagule source and the vegetation cover,which has an additive effect on the demographic structure of the population.Conclusions:This study suggests an active invasion process by the exotic tree tropical ash into a remnant of sub-humid forests in the Andean highlands.Our results showed an expanding population process with a decreasing average age from propagule sources and mature reproductive individuals within the native forest,which bring new individuals that are colonizing new areas and advancing into the forest.This research points to the need for urgent plant intervention on two aspects:the use of the tropical ash and the management of the invasion process in native forests.展开更多
文摘This paper investigated the relationship between demographic structure and international capital flows with panel data of 190 countries over the past 60 years' and projection data for the 21st century. As found, from a global perspective, the current account balance (CAB) is negatively related to the dependency ratio, and orresponding to continuous change, international eapital flows tend to move from "adult countries" to "aged or young countries." Since the middle of the 20th century, the U.S., Europe, Japan, China, Southeast Asia, Central Asia, South Asia, West Asia and Africa took turns in exporting capital to other countries. In the 2lst century, Europe, the U.S., Australia and Singapore will keep importing capital, while China in the 2030s, and Southeast Asia in the 2050s will in turn become the main capital importers. Given the demographic structure of China and the world, the future pattern of the international capital flows requires more serious concern and responses.
文摘With the development of the times,the role of human capital in economic growth has been highlighted.However,in the current academic world,the research on the topic of demographic structure and human capital accumulation is not closely integrated.China is now in a period of economic transformation and upgrading,and it is urgent to change the traditional economic growth model,increase human capital investment,and cultivate new growth momentum.Therefore,this paper examines the impact of China’s population structure on human capital accumulation by constructing a mathematical model based on relevant panel data of 31 provinces(municipalities and autonomous regions)from 2001 to 2020.The empirical results show that human capital accumulation in China has a certain lagging effect,while population age and urban-rural structure enhance human capital accumulation in both quantitative and qualitative terms,respectively.In addition,industrial transformation,economic growth level,and per capita income all have significant positive effects.The effect of education,on the other hand,is not significant,while the interaction between urbanization and industrial structure may hurt it.Based on this,this paper proposes targeted countermeasures and suggestions in terms of fully developing the population quality dividend,fully tapping the talent knowledge dividend,continuously improving the health dividend,and continually tapping the aging dividend.
文摘In most Sub-Saharan African countries such as Togo, people’s heavy dependence on ecosystem services is a major factor in accelerating the degradation of natural resources, which are already suffering as a result of climatic factors. This study was initiated to contribute to the sustainable and rational management of forest resources in the south-east of the Mono Biosphere Reserve in Togo. It specifically aims to identify and characterize the flora of the residual forest ecosystems within the reserve through their specific diversity, demographic structure, and carbon sequestration potential. The study was carried out in the forest ecosystems of Avévé. The methodology used was based on the analysis of phytosociological, forestry, ecological, and regeneration inventory data. Overall, the study revealed that the RBMT still has floristically viable habitats, despite the anthropogenic pressures it is subject to revealed a floristic diversity of 160 plant species divided into 52 families and 135 genera. The most represented families are Rubiaceae (29.09%), followed by Fabaceae (27.94%). The most represented species are Mitragyna inermis (Willd.) Kuntze (24.38%), Lecaniodiscus cupanioides Planch. Ex Benth (X) and Lonchocarpus sericeus (Poir.) Kunth (10.93%). The high presence of Mitragyna inermis observed in all the ecological groups identified makes it the characteristic species of the flooded marshy areas of southeast Togo and contributes to the resilience of the ecosystems and populations in the study area. The Shannon index for the formation groups varies between (3.03 and 5.16) bits. Pielou’s equitability varies between (0.43 and 0.63) bits. The overall average density is estimated at 210 stems/ha, with an average diameter of 25.57 ± 21.77 m and an average height of 7.93 ± 3.83 m. The adjustment of the diameter classes of the plant groups to the Weibull distribution gave an “inverted J” shape with coefficient values of less than 1 overall, reflecting the existence of multispecific or uneven-aged stands. Assessment of the horizontal and vertical structure shows a predominance of the shrub layer in all the groups identified. The carbon sequestration potential is 41.89 T/Ha. Despite ongoing anthropogenic pressures, the Mono Biosphere Reserve abounds in a relatively rich diversity of flora, the preservation of which is essential for the survival of biodiversity and even for the riparian population. The data provided by this study would form the basis for sustainable management planning of the forest islands in the biosphere reserve.
文摘In this paper it has been investigated the issue of the dynamics of the rural population in villages in the mountainous areas of the municipality of Prilep height distribution of the mountainous villages, the area size, absolute density and agrarian population in hilly-mountainous villages, the distance of the hill-mountain villages of the municipality center and institutional infrastructure hilly-mountainous areas in Prilep. Despite the demographic decline that was made in the past 45 years, the municipality and the country will have even more incentive in the coming years to invest in infrastructure to improve little very bad living conditions and foremost here we think of infrastructure, roads, water drinking, clinics, veterinary stations, public transportation, gas stations, stores, construction of ethnic restaurants and small hotels so that at least the older generations of the cities as the least retirement to spend at home, to create minimum conditions for living and so that villages in hilly and mountainous villages to be attractive to younger generations of the cities and migrant workers from European countries and America Australia frequently to visit home, and to be able to invest in small commercial buildings in the area of tourism.
文摘In order to understand the impact of demographic structure on paddy and forestland managementafter the convening of the Third Plenary Session of the 11th CPC (Communist Party of China) CentralCommittee and the implementation of the Household Responsibility System (the government divided upland among peasants for cultivating and the peasants sell a set part of their produced goods to thegovernment at stipulated prices by contract in the countryside of China), 147 households in 6 villages,belonging to Xiangtan County and Zhuzhou County in Hunan Province, were selected as research samples,and interview, questionnaire survey and second hand data analyzing were used as the methods. The resultsshowed: Persons with different ages had different ideas, and young peasants would like to work in townsor cities for more income, so they used and depended on land less; In terms of sex, the male was still themain user of land, and therefore the ability, idea and activity of male played an important role in landmanagement; Generally, the labors with better educational background grasped more knowledge andtechnologies, and they had more opportunity to get jobs and had better working condition and moreincome in town or cities, so they depended on and used land less.
文摘The elderly represent a growing proportion of the overall population and household's heads in Cameroon. This demographic change has some impact on the economic and social situation of the latter, in particular, the functioning of the family structure and solidarity between generations. The successive crises (food and financial) coupled with structural adjustment programs have in fact worsened the problems of the elderly, without having for compensation, provided the corresponding benefits for other age groups. This study contributes to the analysis of changes over time in the family support system, especially with regard to household's heads aged in Cameroon. To achieve this, the discussion turns around three questions: (1) what is the extent and nature of the ageing in Cameroon? (2) what are the demographic, economic, and social implications? and (3) what is the impact of economic and social change on intergenerational relationships? The data used come from the Population Census (1976, 1987, and 2005), and the Cameroonian Household Survey of 2007. The gradual deterioration of the support system for the family, especially due to modernization, and the current and future numbers of older should bring more policymakers to meet the specific needs of this group in Cameroon.
文摘Introduction:Exotic invasive species represent a major driver of the loss of biological diversity and services provided by ecosystems globally.An important cause of species becoming invasive is the development of commercial afforestation projects using fast-growing and adaptable exotic species,which may become invasive impacting natural environments.The tropical ash(Fraxinus uhdei),native to México,has been widely introduced to Colombia and other countries for timber,live fences,and urban greening.It is now common in many areas of the tropical mountains and has been observed expanding into native forests in Colombia.This study examined the invasion pattern and the demographic structure of tropical ash in remnant Andean forests in Colombia,to find out factors associated with the invasion process.The analysis took into account biotic and physical factors:distance to propagule source,vegetation cover types,and understory and canopy cover.Results:Although the reproductive strategy of the tropical ash is of“r”type with low survival rates,the results show evidence for an active process of invasion characterized by an aggregated distribution pattern dominated by seedlings and juvenile plants.The study shows the existence of an interaction between the distance to propagule source and the vegetation cover,which has an additive effect on the demographic structure of the population.Conclusions:This study suggests an active invasion process by the exotic tree tropical ash into a remnant of sub-humid forests in the Andean highlands.Our results showed an expanding population process with a decreasing average age from propagule sources and mature reproductive individuals within the native forest,which bring new individuals that are colonizing new areas and advancing into the forest.This research points to the need for urgent plant intervention on two aspects:the use of the tropical ash and the management of the invasion process in native forests.