[Objective] This study was conducted to provide a theoretical basis for the large area extension of covered well cellular transplanting. [Method] The effects of different transplanting dates and transplanting methods ...[Objective] This study was conducted to provide a theoretical basis for the large area extension of covered well cellular transplanting. [Method] The effects of different transplanting dates and transplanting methods on yield and quality of fluecured tobacco were studied by field plot experiment with K326 as the main cultivated variety. [Result] The transplanting method could advance the transplanting date of tobacco seedlings, and achieve the effects of benefiting the growth of tobacco plants, improving the economic characteristics of tobacco leaves, coordinating the chemical components, and improving the smoking quality of tobacco leaves. [Conclusion] Generally, it is appropriate to transplant tobacco seedlings on February 25 by the covered well celluar method.展开更多
Industrial wastewater discharge in China is increasing with the country′s economic development and it is worthy of concern. The discharge is primarily relevant to the direct discharge coefficient of each sector of th...Industrial wastewater discharge in China is increasing with the country′s economic development and it is worthy of concern. The discharge is primarily relevant to the direct discharge coefficient of each sector of the economy, its direct input coefficient and the final demand in input-output models. In this study, we calculated the sensitivity of the reduction in the Chinese industrial wastewater discharge using the direct input coefficients based on the theory of error-transmission in an input-output framework. Using input-output models, we calculated the direct and total industrial wastewater discharge coefficients. Analysis of 2007 input-output data of 30 sectors of the Chinese economy and of 30 provincial regions of China indicates that by lowering their direct input coefficients, the manufacturers of textiles, paper and paper products, chemical products, smelting and metal pressing, telecommunication equipment, computers and other electronic equipment will significantly reduce their amounts of industrial wastewater discharge. By lowering intra-provincial direct input coefficients to industrial sectors themselves of Jiangsu, Shandong and Zhejiang, there will be a significant reduction in industrial wastewater discharge for the country as a whole. Investment in production technology and improvement in organizational efficiency in these sectors and in these provinces can help lessen the direct input coefficients, thereby effectively achieving a reduction in industrial wastewater discharge in China via industrial restructuring.展开更多
China＇s aging society and the family-based model of basic aged care determine that children＇s support for their parents directly affects the standard of living of the majority of the aging population. Existing theor...China＇s aging society and the family-based model of basic aged care determine that children＇s support for their parents directly affects the standard of living of the majority of the aging population. Existing theories indicate that in this era of social transition, the implications of filial piety have shifted from the traditional emphasis on the parent- child generational relationship and children＇s duty to obey their parents to a dual mode in which family love coexists with the authority of the elders. Using data from the Chinese General Social Survey of 2006, we explore the ways in which the two basic dimensions of authoritarian filial piety and reciprocal filial piety connect with various types of filial behavior. The results of our multivariate linear model show that on average, authoritarian filial piety, which emphasizes authority relationships and children＇s duty, increases children＇s financial support for their parents, while reciprocal filial piety, stressing family love and generational equality, significantly increases children＇s emotional support for their parents. A comparison of the basic dimensions of filial piety shows that neither significantly increases children＇s physical support for their parents. Further analysis of the interaction effect indicates that the link between authoritarian filial piety and financial support is more significant among younger groups. In addition, for males, a marginally significant positive relation exists between authoritarian filial piety and physical support for their parents.展开更多
基金Supported by Science and Technology Project of Ji’an Tobacco Company~~
文摘[Objective] This study was conducted to provide a theoretical basis for the large area extension of covered well cellular transplanting. [Method] The effects of different transplanting dates and transplanting methods on yield and quality of fluecured tobacco were studied by field plot experiment with K326 as the main cultivated variety. [Result] The transplanting method could advance the transplanting date of tobacco seedlings, and achieve the effects of benefiting the growth of tobacco plants, improving the economic characteristics of tobacco leaves, coordinating the chemical components, and improving the smoking quality of tobacco leaves. [Conclusion] Generally, it is appropriate to transplant tobacco seedlings on February 25 by the covered well celluar method.
基金Under the auspices of Key Program of Chinese Academy of Sciences(No.KZZD-EW-06-02)National Natural Science Foundation of China(No.41201129)Humanities and Social Science Research Planning Fund,Ministry of Education of China(No.13YJAZH042)
文摘Industrial wastewater discharge in China is increasing with the country′s economic development and it is worthy of concern. The discharge is primarily relevant to the direct discharge coefficient of each sector of the economy, its direct input coefficient and the final demand in input-output models. In this study, we calculated the sensitivity of the reduction in the Chinese industrial wastewater discharge using the direct input coefficients based on the theory of error-transmission in an input-output framework. Using input-output models, we calculated the direct and total industrial wastewater discharge coefficients. Analysis of 2007 input-output data of 30 sectors of the Chinese economy and of 30 provincial regions of China indicates that by lowering their direct input coefficients, the manufacturers of textiles, paper and paper products, chemical products, smelting and metal pressing, telecommunication equipment, computers and other electronic equipment will significantly reduce their amounts of industrial wastewater discharge. By lowering intra-provincial direct input coefficients to industrial sectors themselves of Jiangsu, Shandong and Zhejiang, there will be a significant reduction in industrial wastewater discharge for the country as a whole. Investment in production technology and improvement in organizational efficiency in these sectors and in these provinces can help lessen the direct input coefficients, thereby effectively achieving a reduction in industrial wastewater discharge in China via industrial restructuring.
基金supported by grants from the School of Social Development and Public Policy,Fudan University the Youth Project of the National Social Science Fund of China（15CSH030） the Major Project of the National Natural Science Foundation of China（71490733）
文摘China＇s aging society and the family-based model of basic aged care determine that children＇s support for their parents directly affects the standard of living of the majority of the aging population. Existing theories indicate that in this era of social transition, the implications of filial piety have shifted from the traditional emphasis on the parent- child generational relationship and children＇s duty to obey their parents to a dual mode in which family love coexists with the authority of the elders. Using data from the Chinese General Social Survey of 2006, we explore the ways in which the two basic dimensions of authoritarian filial piety and reciprocal filial piety connect with various types of filial behavior. The results of our multivariate linear model show that on average, authoritarian filial piety, which emphasizes authority relationships and children＇s duty, increases children＇s financial support for their parents, while reciprocal filial piety, stressing family love and generational equality, significantly increases children＇s emotional support for their parents. A comparison of the basic dimensions of filial piety shows that neither significantly increases children＇s physical support for their parents. Further analysis of the interaction effect indicates that the link between authoritarian filial piety and financial support is more significant among younger groups. In addition, for males, a marginally significant positive relation exists between authoritarian filial piety and physical support for their parents.
