煤矿开采可靠性、生产和控制国际会议(International Conference on Reliability,Production and Control in Coal Mining)将于1991年9月2～5日在澳大利亚新南威尔士州伍伦贡市举行。联系处:R.D.Lama,Kembla Coal and Coke Pty Ltd,PO B...煤矿开采可靠性、生产和控制国际会议(International Conference on Reliability,Production and Control in Coal Mining)将于1991年9月2～5日在澳大利亚新南威尔士州伍伦贡市举行。联系处:R.D.Lama,Kembla Coal and Coke Pty Ltd,PO Box 1770,Wollongong,NSW,Australia,Phone:61展开更多
The differences of regional economic development between underdeveloped areas and developed areas are mainly embodied by different levels of private economic development. Since 20-year reform and opening-up to the out...The differences of regional economic development between underdeveloped areas and developed areas are mainly embodied by different levels of private economic development. Since 20-year reform and opening-up to the outside world, the private industry of Zigong has developed gradually, become more and more economically competitive, and played a more and more important role in the economic structure of Zigong. This paper analyzes the problems of private economy and its countermeasures based on the research on its status quo.展开更多
Agriculture has both economic value and non-economic value. The calculation of the non-economic value of agriculture has become a research hotspot in academic circles. This paper divides the value of agriculture into ...Agriculture has both economic value and non-economic value. The calculation of the non-economic value of agriculture has become a research hotspot in academic circles. This paper divides the value of agriculture into products production value and ecological value, and adopts an authoritative ecological value calculation idea, i.e. the method proposed by Costanza et al. in 1997 as the basis to calculate the ecological value of agriculture. However, the study has come under heavy criticism：for example, some data have major deviation, underestimating the ecological value of cultivated land while overestimating the wetland. XIE Gaodi et al. in 2003 came up with more reliable results to make up for the deifciency of the methods from Costanza et al. Referring to some of the results and on the basis of a questionnaire survey to 200 Chinese ecologists, this paper presented an equivalent factor table for evaluating the ecological service value （ESV） of China’s ecosystem. Based on this table and the practical situation of Tianjin, the paper formulates an applicable calculation method for ecological value and actual y calculates the ecological value of agriculture in Tianjin with ofifcial statistics. The results show that the actual value of the ecological value of agriculture in Tianjin in 2012 was 111.20 bil ion CNY, about triple of the economic value of agriculture （37.56 bil ion CNY） in the same year.展开更多
文摘煤矿开采可靠性、生产和控制国际会议(International Conference on Reliability,Production and Control in Coal Mining)将于1991年9月2～5日在澳大利亚新南威尔士州伍伦贡市举行。联系处:R.D.Lama,Kembla Coal and Coke Pty Ltd,PO Box 1770,Wollongong,NSW,Australia,Phone:61
文摘The differences of regional economic development between underdeveloped areas and developed areas are mainly embodied by different levels of private economic development. Since 20-year reform and opening-up to the outside world, the private industry of Zigong has developed gradually, become more and more economically competitive, and played a more and more important role in the economic structure of Zigong. This paper analyzes the problems of private economy and its countermeasures based on the research on its status quo.
基金National Natural Science Foundation of China(71303227)National Philosophy and Social Science Foundation of China(11CJY050)Postdoctoral Science Foundation of China(2013M530719)
文摘Agriculture has both economic value and non-economic value. The calculation of the non-economic value of agriculture has become a research hotspot in academic circles. This paper divides the value of agriculture into products production value and ecological value, and adopts an authoritative ecological value calculation idea, i.e. the method proposed by Costanza et al. in 1997 as the basis to calculate the ecological value of agriculture. However, the study has come under heavy criticism：for example, some data have major deviation, underestimating the ecological value of cultivated land while overestimating the wetland. XIE Gaodi et al. in 2003 came up with more reliable results to make up for the deifciency of the methods from Costanza et al. Referring to some of the results and on the basis of a questionnaire survey to 200 Chinese ecologists, this paper presented an equivalent factor table for evaluating the ecological service value （ESV） of China’s ecosystem. Based on this table and the practical situation of Tianjin, the paper formulates an applicable calculation method for ecological value and actual y calculates the ecological value of agriculture in Tianjin with ofifcial statistics. The results show that the actual value of the ecological value of agriculture in Tianjin in 2012 was 111.20 bil ion CNY, about triple of the economic value of agriculture （37.56 bil ion CNY） in the same year.
