[Objectives]To analyze the changes in of forest carbon sink and forestry economic development,provide reference for relevant management decisions,ecological governance and resource and environment management,and promo...[Objectives]To analyze the changes in of forest carbon sink and forestry economic development,provide reference for relevant management decisions,ecological governance and resource and environment management,and promote the development of green low-carbon economy in China.[Methods]Based on the data of six forest resource inventories from 1989 to 2018 and related studies,the comprehensive evaluation model of forest carbon sink and forestry economic development,the coupling degree model of forest carbon sink and forestry economic development,and the coupling coordination degree model of forest carbon sink and forestry economic development were adopted.The coupling degree of forest carbon sink and forestry economic development from 1992 to 2018 was analyzed.Stepwise regression and ARIMA model were used to analyze the influencing factors and lagging characteristics of forest carbon sink.The coupling degree between forest carbon sink and forestry economic development in China from 2019 to 2030 was predicted by autoregression and ADF test.The coupling between forest carbon sink and forestry economic development in China and its long-term change characteristics were also discussed in this study.[Results](i)The investment of ecological construction and protection,the actual investment of forestry key ecological projects,GDP and the import of forest products had a significant impact on forest resources carbon stock.The total output value of forestry industry,the actually completed investment of forestry key ecological projects and the export volume of forest products had a significant impact on the forest carbon sink,and the actually completed investment of forestry key ecological projects has the greatest impact on the two.(ii)The impact of actually completed investment of forestry key ecological projects had a lag of 2 years on the forest resources carbon stock and a lag of 1 year on the forest carbon sink.When investing in forest carbon sink,it is necessary to make a good plan in advance,and do a good job in forest resources management and time optimization.(iii)From 1992 to 2018,the coupling degree of forest resources carbon stock,forest carbon sink and long-term development of forestry economy in China was gradually increasing.Although there were some fluctuations in the middle time,the coupling degree of forest resources carbon stock and the long-term development of forestry economy increased by 9.24%annually,and the degree of coupling coordination increased from"serious imbalance"in 1992 to"high-quality coordination"in 2018.From 1993 to 2018,the coupling degree of forest carbon sink and long-term development of forestry economy increased by 9.63%annually,slightly faster than the coupling coordination degree of forest resources carbon stock and long-term development of forestry economy.The coordination level also rose from level 2 in 1993 to level 10 in 2018.(iv)The prediction shows that the coupling coordination degree of forest resources carbon stock,forest carbon sink and the long-term development of forestry economy would increase from 2019 to 2030.The coupling coordination degree(D)values of both were close to 1,the coordination level was also 10 for a long time,and the degree of coupling coordination was also maintained at the"high-quality coordination"level for a long time.[Conclusions]Forest has multiple benefits of society,economy and ecology,and forest carbon sink is only a benefit output.The long-term coupling analysis of forest carbon sink and forestry economic development is a key point to multiple benefit analysis.The analysis shows that the spillover effect and co-evolution effect of forest carbon sink in China are significant.From 1992 to 2018,the coupling coordination degree of forest carbon sink and forestry economic development was gradually rising.The prediction analysis also indicate that the coupling coordination degree between the forest carbon sink and the long-term development of forestry economy will remain at the level of"high-quality coordination"for a long time from 2019 to 2030.Therefore,improving the level of forest management and maintaining the current trend of increasing forest resources are the key to achieving the goal of carbon peaking and carbon neutrality in China.展开更多
With the gradual development of society, scientific and technological progress, aging gradually aggravated, has become a hot topic of society. People to old age, self-care ability than in the past, not only suffer fro...With the gradual development of society, scientific and technological progress, aging gradually aggravated, has become a hot topic of society. People to old age, self-care ability than in the past, not only suffer from disease, life has become difficult, coupled with the large number of empty nest family, the cost of care is also very high, whether it is to receive home care or professional institutions of care have great difficulties. Therefore, the community should be a large number of people with long-term care needs of the appropriate economic compensation, in this context, long-term care insurance is born. As a leading city in Shandong Province, Qingdao has introduced long-term care insurance and achieved good results. This paper analyzes the practical problems faced by Qingdao, that is, the development background of Qingdao long-term nursing insurance model, obtains the deficiency of Qingdao long-term nursing insurance, and then puts forward the corresponding countermeasures, and then ponders how to choose the long-term nursing insurance model of our country＇s future development.展开更多
Remarkable achievements have been made in China＇s agricultural development since the late 1970s. Nevertheless, deep-rooted problems are arising from inefficient farming practices. From mid- and long-term perspectives...Remarkable achievements have been made in China＇s agricultural development since the late 1970s. Nevertheless, deep-rooted problems are arising from inefficient farming practices. From mid- and long-term perspectives, migration of China＇s agricultural labor will slow and large-scale operation of farmland will accelerate. Although grain supply and demand have maintained a tight balance, new potentials still exist in improving grain production. Under the pressures of resource and environmental constraints, advancing the green and efficient transition of agriculture will become a new trend in China＇s agricultural development. In this context, the treatment of agricultural pollution, supply-side structural reform and innovation of agricultural subsidy policy are of strategic significance to the transition and upgrade of China＇s agriculture.展开更多
Purpose： The present study aimed to examine the effect of static stretching （SS） and a sport-specific dynamic stretching （DS） session at two specific post-stretch time intervals in highly trained female athletes ...Purpose： The present study aimed to examine the effect of static stretching （SS） and a sport-specific dynamic stretching （DS） session at two specific post-stretch time intervals in highly trained female athletes （age 19.90 ± 1.60 years; height 1.80 ±0.06 m; mass 76.87 ± 9.95 kg） on kinetic parameters of peak force, time-to-takeoff, and rate of force development. Methods： The data were collected over 3 days （randomized within subject design with control session）. Following each stretch session （SS vs. DS vs. control） of equal duration （7 min total： 30 s per targeted muscle group） participants performed countermovement jumping on a force platform at 1 and 15 rain after stretching. Results： The DS session significantly improved upon kinetic variables of rate of force development, peak force, and time-to-takeoffrelative to SS at 1 min after stretching. No significant effect was found at 15 min. Conclusion： Together these findings suggest that when training and competing to jump quickly and maximally the female athlete should incorporate DS instead of SS as part of their pre-competition warm-up, but conduct performance within 15 min of their warm-up to elicit maximal gains展开更多
The exploitation and utilization of the tour resources of tournament athletics, including skiling, boat sailing, archery, ice engraving, snow engrav ing, has become a new trend of the development of Chinese tourism. D...The exploitation and utilization of the tour resources of tournament athletics, including skiling, boat sailing, archery, ice engraving, snow engrav ing, has become a new trend of the development of Chinese tourism. Due to the un ique cold climate and superior geographic location,Harbin is a promising city f or developing tour resources of tournament athletics. Based on the analysis of t he superiority and peculiarity of Harbin,the speculation on development of tour resources of tournament athletics in Harbin is proposed as follows:1) Harbin s hould develop its special tour resources of tournament athletics associated with needs of market; 2) Harbin should take the advantages of rich resources and dev elop ice and snow entertainment in winter and travel for sight-seeing and spend ing summer; 3) the adjustment of the layout of ice and snow resources should be based on the idea of taking Harbin as the center and all-side opening at the la rge scale in the way of radiation; 4) tourism should be developed by the combine d efforts of various departments to make feasible plan, and the organizers shoul d pay much attention to ensuring the safety of tourists.展开更多
提高竞技体育人才培养效率是保障竞技体育健康稳定发展的重要途径。研究系统梳理了近年来优秀运动员发展环境(athletic talent development environment,ATDE)领域的理论进展和实证研究,从打造良好育人环境的角度,介绍了诸多环境因素在...提高竞技体育人才培养效率是保障竞技体育健康稳定发展的重要途径。研究系统梳理了近年来优秀运动员发展环境(athletic talent development environment,ATDE)领域的理论进展和实证研究,从打造良好育人环境的角度,介绍了诸多环境因素在运动员成功发展过程中的功能角色和重要性;基于整体生态学途径(holistic ecological approach,HEA)的理论与实证研究进展,分析了ATDE的结构和过程模型,以及环境因素的有效特征和无效特征;人才发展环境要素的良性功能和不良功能特征初步概念框架进一步揭示了环境因素对运动员发展的双向作用。研究认为,成功的ATDE具备支持性训练团队、明确的组织文化和整合各方努力的能力等,而无效的环境则缺乏这些特征。已有实证研究通过对具体运动员发展环境和特定环境要素进行分析,结合HEA等理论框架,从运动员、教练员等多个视角出发,探讨ATDE对运动成绩与运动员个人发展的影响。未来需关注跨文化研究、长期追踪研究、环境因素的综合评估,并强化实证研究的深度和广度。展开更多
Worldwide,welfare is trending from a welfare state model to social participation to ensure the sustainability of health care systems.Japan,where the aging rate will reach 40%by 2060,reformed public Long-Term Care Insu...Worldwide,welfare is trending from a welfare state model to social participation to ensure the sustainability of health care systems.Japan,where the aging rate will reach 40%by 2060,reformed public Long-Term Care Insurance(LTCI)on a large scale in 2015 and started the Comprehensive Service project(CS project),which emphasizes the prevention of long-term care through social participation in the community.Through this project,communities work to develop prevention efforts revolving around the community salon/caféand mutual support,including all daily tasks that previously were the purview of family members.Each municipality has an obligation to promote a CS project through new community development initiatives among community members.The purpose of this study is to investigate the CS projects performed by rural municipalities and to explore the important factors for their success.The authors used a case study methodology and constant comprehensive methodology for analyzing interview data to pull out the elements of successful initiatives.The study shows that the following factors influence success:recognition of demographic risk,recognition of the ineffectiveness of LTCI services,developing a passionate philosophy and strategy as a municipality,developing community members’initiative,and having many assets and full participation in the community.These factors imply that community development is a critical part of any successful CS project.展开更多
This paper systematically examines the impact of environmental,social,and governance(ESG)factors on the financial performance and long-term value of real estate investment trusts(REITs).Adopting comparative analysis a...This paper systematically examines the impact of environmental,social,and governance(ESG)factors on the financial performance and long-term value of real estate investment trusts(REITs).Adopting comparative analysis as the quantitative research method,the paper selects representative cases of ESG-integrated REITs and traditional REITs at home and abroad,constructs a regression model,and compares projects from multiple key value dimensions,including yield,risk-adjusted returns,asset appreciation potential,financing costs,and market liquidity.The study finds that ESG-integrated REITs demonstrate significant advantages in long-term financial performance,risk resilience,and market valuation.Based on these findings,the paper proposes a series of policy recommendations,including improving ESG information disclosure standards,optimizing tax incentive mechanisms,and constructing an ESG evaluation system,to promote the high-quality and sustainable development of China’s REIT market.The paper consists of five parts:introduction of the research problem,theoretical framework,research methods(data sources and model construction),quantitative comparative analysis between ESG-integrated REITs and traditional REITs,and conclusion with recommendations.展开更多
基金Supported by National Natural Science Foundation of China(72173011).
文摘[Objectives]To analyze the changes in of forest carbon sink and forestry economic development,provide reference for relevant management decisions,ecological governance and resource and environment management,and promote the development of green low-carbon economy in China.[Methods]Based on the data of six forest resource inventories from 1989 to 2018 and related studies,the comprehensive evaluation model of forest carbon sink and forestry economic development,the coupling degree model of forest carbon sink and forestry economic development,and the coupling coordination degree model of forest carbon sink and forestry economic development were adopted.The coupling degree of forest carbon sink and forestry economic development from 1992 to 2018 was analyzed.Stepwise regression and ARIMA model were used to analyze the influencing factors and lagging characteristics of forest carbon sink.The coupling degree between forest carbon sink and forestry economic development in China from 2019 to 2030 was predicted by autoregression and ADF test.The coupling between forest carbon sink and forestry economic development in China and its long-term change characteristics were also discussed in this study.[Results](i)The investment of ecological construction and protection,the actual investment of forestry key ecological projects,GDP and the import of forest products had a significant impact on forest resources carbon stock.The total output value of forestry industry,the actually completed investment of forestry key ecological projects and the export volume of forest products had a significant impact on the forest carbon sink,and the actually completed investment of forestry key ecological projects has the greatest impact on the two.(ii)The impact of actually completed investment of forestry key ecological projects had a lag of 2 years on the forest resources carbon stock and a lag of 1 year on the forest carbon sink.When investing in forest carbon sink,it is necessary to make a good plan in advance,and do a good job in forest resources management and time optimization.(iii)From 1992 to 2018,the coupling degree of forest resources carbon stock,forest carbon sink and long-term development of forestry economy in China was gradually increasing.Although there were some fluctuations in the middle time,the coupling degree of forest resources carbon stock and the long-term development of forestry economy increased by 9.24%annually,and the degree of coupling coordination increased from"serious imbalance"in 1992 to"high-quality coordination"in 2018.From 1993 to 2018,the coupling degree of forest carbon sink and long-term development of forestry economy increased by 9.63%annually,slightly faster than the coupling coordination degree of forest resources carbon stock and long-term development of forestry economy.The coordination level also rose from level 2 in 1993 to level 10 in 2018.(iv)The prediction shows that the coupling coordination degree of forest resources carbon stock,forest carbon sink and the long-term development of forestry economy would increase from 2019 to 2030.The coupling coordination degree(D)values of both were close to 1,the coordination level was also 10 for a long time,and the degree of coupling coordination was also maintained at the"high-quality coordination"level for a long time.[Conclusions]Forest has multiple benefits of society,economy and ecology,and forest carbon sink is only a benefit output.The long-term coupling analysis of forest carbon sink and forestry economic development is a key point to multiple benefit analysis.The analysis shows that the spillover effect and co-evolution effect of forest carbon sink in China are significant.From 1992 to 2018,the coupling coordination degree of forest carbon sink and forestry economic development was gradually rising.The prediction analysis also indicate that the coupling coordination degree between the forest carbon sink and the long-term development of forestry economy will remain at the level of"high-quality coordination"for a long time from 2019 to 2030.Therefore,improving the level of forest management and maintaining the current trend of increasing forest resources are the key to achieving the goal of carbon peaking and carbon neutrality in China.
文摘With the gradual development of society, scientific and technological progress, aging gradually aggravated, has become a hot topic of society. People to old age, self-care ability than in the past, not only suffer from disease, life has become difficult, coupled with the large number of empty nest family, the cost of care is also very high, whether it is to receive home care or professional institutions of care have great difficulties. Therefore, the community should be a large number of people with long-term care needs of the appropriate economic compensation, in this context, long-term care insurance is born. As a leading city in Shandong Province, Qingdao has introduced long-term care insurance and achieved good results. This paper analyzes the practical problems faced by Qingdao, that is, the development background of Qingdao long-term nursing insurance model, obtains the deficiency of Qingdao long-term nursing insurance, and then puts forward the corresponding countermeasures, and then ponders how to choose the long-term nursing insurance model of our country＇s future development.
文摘Remarkable achievements have been made in China＇s agricultural development since the late 1970s. Nevertheless, deep-rooted problems are arising from inefficient farming practices. From mid- and long-term perspectives, migration of China＇s agricultural labor will slow and large-scale operation of farmland will accelerate. Although grain supply and demand have maintained a tight balance, new potentials still exist in improving grain production. Under the pressures of resource and environmental constraints, advancing the green and efficient transition of agriculture will become a new trend in China＇s agricultural development. In this context, the treatment of agricultural pollution, supply-side structural reform and innovation of agricultural subsidy policy are of strategic significance to the transition and upgrade of China＇s agriculture.
文摘Purpose： The present study aimed to examine the effect of static stretching （SS） and a sport-specific dynamic stretching （DS） session at two specific post-stretch time intervals in highly trained female athletes （age 19.90 ± 1.60 years; height 1.80 ±0.06 m; mass 76.87 ± 9.95 kg） on kinetic parameters of peak force, time-to-takeoff, and rate of force development. Methods： The data were collected over 3 days （randomized within subject design with control session）. Following each stretch session （SS vs. DS vs. control） of equal duration （7 min total： 30 s per targeted muscle group） participants performed countermovement jumping on a force platform at 1 and 15 rain after stretching. Results： The DS session significantly improved upon kinetic variables of rate of force development, peak force, and time-to-takeoffrelative to SS at 1 min after stretching. No significant effect was found at 15 min. Conclusion： Together these findings suggest that when training and competing to jump quickly and maximally the female athlete should incorporate DS instead of SS as part of their pre-competition warm-up, but conduct performance within 15 min of their warm-up to elicit maximal gains
文摘The exploitation and utilization of the tour resources of tournament athletics, including skiling, boat sailing, archery, ice engraving, snow engrav ing, has become a new trend of the development of Chinese tourism. Due to the un ique cold climate and superior geographic location,Harbin is a promising city f or developing tour resources of tournament athletics. Based on the analysis of t he superiority and peculiarity of Harbin,the speculation on development of tour resources of tournament athletics in Harbin is proposed as follows:1) Harbin s hould develop its special tour resources of tournament athletics associated with needs of market; 2) Harbin should take the advantages of rich resources and dev elop ice and snow entertainment in winter and travel for sight-seeing and spend ing summer; 3) the adjustment of the layout of ice and snow resources should be based on the idea of taking Harbin as the center and all-side opening at the la rge scale in the way of radiation; 4) tourism should be developed by the combine d efforts of various departments to make feasible plan, and the organizers shoul d pay much attention to ensuring the safety of tourists.
基金supported by JSPS(Japan Society for the Promotion of Science)KAKENHI(17K04251)of Grant-in-Aid for Scientific Research(C)and a Tokyo Kasei University Research Project Grant.
文摘Worldwide,welfare is trending from a welfare state model to social participation to ensure the sustainability of health care systems.Japan,where the aging rate will reach 40%by 2060,reformed public Long-Term Care Insurance(LTCI)on a large scale in 2015 and started the Comprehensive Service project(CS project),which emphasizes the prevention of long-term care through social participation in the community.Through this project,communities work to develop prevention efforts revolving around the community salon/caféand mutual support,including all daily tasks that previously were the purview of family members.Each municipality has an obligation to promote a CS project through new community development initiatives among community members.The purpose of this study is to investigate the CS projects performed by rural municipalities and to explore the important factors for their success.The authors used a case study methodology and constant comprehensive methodology for analyzing interview data to pull out the elements of successful initiatives.The study shows that the following factors influence success:recognition of demographic risk,recognition of the ineffectiveness of LTCI services,developing a passionate philosophy and strategy as a municipality,developing community members’initiative,and having many assets and full participation in the community.These factors imply that community development is a critical part of any successful CS project.
文摘This paper systematically examines the impact of environmental,social,and governance(ESG)factors on the financial performance and long-term value of real estate investment trusts(REITs).Adopting comparative analysis as the quantitative research method,the paper selects representative cases of ESG-integrated REITs and traditional REITs at home and abroad,constructs a regression model,and compares projects from multiple key value dimensions,including yield,risk-adjusted returns,asset appreciation potential,financing costs,and market liquidity.The study finds that ESG-integrated REITs demonstrate significant advantages in long-term financial performance,risk resilience,and market valuation.Based on these findings,the paper proposes a series of policy recommendations,including improving ESG information disclosure standards,optimizing tax incentive mechanisms,and constructing an ESG evaluation system,to promote the high-quality and sustainable development of China’s REIT market.The paper consists of five parts:introduction of the research problem,theoretical framework,research methods(data sources and model construction),quantitative comparative analysis between ESG-integrated REITs and traditional REITs,and conclusion with recommendations.
