With the rapid development of agricultural informalization in the world, the demand of agricultural information has been a focus in the international agriculture and information fields. Based on the investigation, thi...With the rapid development of agricultural informalization in the world, the demand of agricultural information has been a focus in the international agriculture and information fields. Based on the investigation, this paper presented the four characteristics of the demand of agricultural information in China, includingregionality, seasonality, great potential demand and variation in kind and level. The factors infuencing the demand of agricultural information were analyzed by the Optimized Less Square (OLS) method. The result shows that, of all factors influcing agricultural information demand, the most important one is economy, the second is facility of information pass, and knowledge and education of user, credit of agricultural information service system and production situation follow. Taking Jilin Province as an example, this article also elaborated the agricultural information demand status, and deduced the regression model of agricultural information demand and verified it by the survey in rural Jilin.展开更多
Animal husbandry industry in Jilin Province is developing rapidly toward the one in large-scale, standardization and industrialization. It is upgrading to a higher level. This lays the foundation for the industry to p...Animal husbandry industry in Jilin Province is developing rapidly toward the one in large-scale, standardization and industrialization. It is upgrading to a higher level. This lays the foundation for the industry to practice ecological industry. Following the policies of Chinese Government, more and more enterprises are being engaged in seeking the effective ways of circular-economy. This paper does some researches on the projects of two major enterprises in this industry, redesigns the eco-industrial chains using principles of industrial ecology, and provides two models of circular-economy, namely vertical circulation and horizontal combination. After that, it analyzes the technological and economic effectiveness of the two designing plans. At the end, it summaries the traits of suitable circular-economy models adopted in the industry.展开更多
Under the target of the sustainable development,optimization of forestry industrial structure contains rationalization and advancement of forestry industrial structure in the traditional sense,as well as ecologicaliza...Under the target of the sustainable development,optimization of forestry industrial structure contains rationalization and advancement of forestry industrial structure in the traditional sense,as well as ecologicalization of forestry industrial structure.The connotation of optimization of forestry industrial structure is analyzed at first,and then the paper chooses the typical evaluation indexes from the three sides of rationalization,advancement and ecologicalization to evaluate the current situation of the regional forestry industrial structure.With the aid of the theory of fuzzy mathematics and information entropy,the paper establishes a fuzzy evaluation model which is based on information entropy for optimization of forestry industrial structure,and the evaluation model is applied in the study for the current situation of forestry industrial structure from 2000 to 2006 in Hubei province.The results show that the grade of forestry industrial structure is bad basically during the research,of which the overall level of forestry industrial structure of Hubei province is poor,the degree of utilizing forest resource is lower,and ecological environment in the forest region has been damaged to some extent.On this basis,the author presents the countermeasure to promote the optimization of forestry industrial structure.展开更多
文摘With the rapid development of agricultural informalization in the world, the demand of agricultural information has been a focus in the international agriculture and information fields. Based on the investigation, this paper presented the four characteristics of the demand of agricultural information in China, includingregionality, seasonality, great potential demand and variation in kind and level. The factors infuencing the demand of agricultural information were analyzed by the Optimized Less Square (OLS) method. The result shows that, of all factors influcing agricultural information demand, the most important one is economy, the second is facility of information pass, and knowledge and education of user, credit of agricultural information service system and production situation follow. Taking Jilin Province as an example, this article also elaborated the agricultural information demand status, and deduced the regression model of agricultural information demand and verified it by the survey in rural Jilin.
基金Under the auspices of the National Natural Science Foundation of China (No. 40571041), Northeast Institute of Ge-ography and Agroecology, Chinese Academy of Sciences (KZCX3-SW-NA-07)
文摘Animal husbandry industry in Jilin Province is developing rapidly toward the one in large-scale, standardization and industrialization. It is upgrading to a higher level. This lays the foundation for the industry to practice ecological industry. Following the policies of Chinese Government, more and more enterprises are being engaged in seeking the effective ways of circular-economy. This paper does some researches on the projects of two major enterprises in this industry, redesigns the eco-industrial chains using principles of industrial ecology, and provides two models of circular-economy, namely vertical circulation and horizontal combination. After that, it analyzes the technological and economic effectiveness of the two designing plans. At the end, it summaries the traits of suitable circular-economy models adopted in the industry.
基金supported by National Social Sciences Fund of China (Grant No 09XSH018)
文摘Under the target of the sustainable development,optimization of forestry industrial structure contains rationalization and advancement of forestry industrial structure in the traditional sense,as well as ecologicalization of forestry industrial structure.The connotation of optimization of forestry industrial structure is analyzed at first,and then the paper chooses the typical evaluation indexes from the three sides of rationalization,advancement and ecologicalization to evaluate the current situation of the regional forestry industrial structure.With the aid of the theory of fuzzy mathematics and information entropy,the paper establishes a fuzzy evaluation model which is based on information entropy for optimization of forestry industrial structure,and the evaluation model is applied in the study for the current situation of forestry industrial structure from 2000 to 2006 in Hubei province.The results show that the grade of forestry industrial structure is bad basically during the research,of which the overall level of forestry industrial structure of Hubei province is poor,the degree of utilizing forest resource is lower,and ecological environment in the forest region has been damaged to some extent.On this basis,the author presents the countermeasure to promote the optimization of forestry industrial structure.