While non-point pollution from agriculture has become an increasingly serious problem in China, some progress has been made in studying the causal biophysical processes. However, few studies have assessed the economic...While non-point pollution from agriculture has become an increasingly serious problem in China, some progress has been made in studying the causal biophysical processes. However, few studies have assessed the economic consequences of non-point pollution in China or the policy options that could be employed to combat it. In this work a sustainable strategy to control non-point pollution from crop production, which involved taxing excessive inputs of irrigation water and fertilizer, was proposed. The approach taken to assess these measures combined biophysical and economic models,having a trade-off between economic returns and an improved environment. A proven and practical spatially referenced water and nutrient management model was used to determine the quantities of excessive irrigation water and fertilizer for specific soil and land use. Also, a set of indicators were proposed for evaluating the effects of agricultural economic output and agricultural practices on the environment.展开更多
The Value of the World's Ecosystem Services and Natural Capital by Costanza in 1997 is generally regarded as a monumem for the research of valuing ecosystem services. However, the classification of ecosystem services...The Value of the World's Ecosystem Services and Natural Capital by Costanza in 1997 is generally regarded as a monumem for the research of valuing ecosystem services. However, the classification of ecosystem services, the method of various services summation and the purpose for static global value had be confronted by many criticisms. Based on the summary of these criticisms, suggestions, related function assessment and further study direction, the sustainability of ecosystem Services is presented. The two basic indicators in ecology, productivity and biodiversity, respectively charactering the ability of producing and self-organizing, not only represent the internal function of ecosystem, but also are proportioned to its external function of supporting and providing for human life. On presenting the general.form of ecosystem services assessment, this paper improves the mathematical formula by giving a function adjusting coefficient composea of productivity and biodiversity. Theoretically, the integration of the two indicators reflects the changes of ecosystem services at spatial and temporal scales, can physically assess the sustainability of ecosystem services, and build a firm scientific fundament of value assessment for ecosystem services. Objectively, its application should be strictly tested in next step.展开更多
The relationship between the emission of pollutant and economic growth has attracted a lot of attention in the environmental debate of the recent decades. Based on some theoretical and empirical research on environmen...The relationship between the emission of pollutant and economic growth has attracted a lot of attention in the environmental debate of the recent decades. Based on some theoretical and empirical research on environmental Kuznets curve (EKC), this paper introduces the environmental technical innovation and environmental investment into Salow growth model to discuss the relationship between GDP per capital and the emission of pollutant By the dynamic simulation and parameters analysis, the results of the model indicate: (1) when "green" technical progress and environmental investment are fixed, the relationship between GDP per capital and the emission shows the linear relationship; (2) "green" technical progress can lead to the positive growth rates with a decreasing level of emission, which is compatible with an EKC; (3) the proportion of the environmental investment can lead the different growth rates and level of emission. These results can explain that developing countries are "too poor to be green".展开更多
The purpose of this paper is to explore the promise of utilizing some relatively new feedback control techniques in ecosystem management. First, we set forth a basic ecological-economic model of a predator-prey-huntin...The purpose of this paper is to explore the promise of utilizing some relatively new feedback control techniques in ecosystem management. First, we set forth a basic ecological-economic model of a predator-prey-hunting system in which both the predator and prey have use(flow) and non-use(stock) value and when the predator can inflict transboundary damages. We then use new data from the US Mountain West to show how a particular feedback approach—linear parameter-varying(LPV) control—can be utilized in this context. Our LPV model is able to quantify the cost of managing disturbances that inevitably arise as a manager tries to keep the actual path of the system "close" to its optimum. The results suggest management strategies in mountain ecosystems that feature large, mammalian carnivores.展开更多
By means of ISM (Interpretative Structural Modeling) and SD (System Dynamics) methods, this paper made a system dynamics model of urbanization and eco-environment coupling in Jiangsu Province according to the implicat...By means of ISM (Interpretative Structural Modeling) and SD (System Dynamics) methods, this paper made a system dynamics model of urbanization and eco-environment coupling in Jiangsu Province according to the implication and PSR (Pressure State Response) framework of urbanization and eco-environment coupling. Moreover, five typical scenarios during 2000-2015 have been simulated and analyzed based on the time serial statistical data during 1990-2003 in Jiangsu, which indicates: firstly, there are significant differences between the results and the scenarios, and the five coupling models all have comparative advantages and drawbacks; secondly, in terms of the characteristics and regional development disparities of Jiangsu and the general rule of world urbanization process, this paper reveals that only when either population urbanization model or social urbanization model to be correspondingly adopted, the sustainable development among population, economy, urbanization and eco-environment can be realized.展开更多
It is difficult to afforest in rock desertification region and is the key area for eco-environment treatment. To speed up the comprehensive treatment of rock desertification, several anti-rock desertification modes im...It is difficult to afforest in rock desertification region and is the key area for eco-environment treatment. To speed up the comprehensive treatment of rock desertification, several anti-rock desertification modes implemented in Dingtan region, located on the right bank of Huajiang Grand Valley in Beipanjiang Town, are introduced as examples. This paper first analyzes the natural and environmental conditions, the development of rock desertification in the Dingtan region, then the detail of the treatment modes, such as “Chinese wingleaf pricklyash – pig breeding – marsh gas” (Mode One), “amomum villosum – pig breeding – marsh gas” mode (Mode Two), “traditional grain and economic crop (corn, peanut) – amomum villosum or Chinese wingleaf pricklyash” (Mode Three), etc. The eco-economic effects, potential and shortcomings of the above mentioned modes are analyzed and compared. It is proved that Mode One and Mode Two are of good economic effect, but Mode Three of better ecological effect. Solutions to the shortcomings of the modes are also put forward.展开更多
The goal of sustainoble development is to preserve sustainabitity trod simultaneously prevent catastrophe in a man-land .system. However, almost all the existing approaches to assessing sustainable development are to ...The goal of sustainoble development is to preserve sustainabitity trod simultaneously prevent catastrophe in a man-land .system. However, almost all the existing approaches to assessing sustainable development are to measure the sustainability. namely appraise from the obverse side of the sustainable development. So it seems necessary to attack the same task on the reverse, namely to measure the passibility of eatostrophe. In this paper, with a case study of Tianjin, China. we employ catastrophe theory and models to integrate Tianjin's sustainable development indicators, and then deduce the catastrophe risk index ( CRI) to present the level of catastrophic possibility in the city. Applying catastrophe theory, is a new strategy to assess sustainable development and shows great practical significance, especially for those developing regions or countries, who always give more priority to their economy and therefore have more obligation to make sure whether their social economic activities might bring forth any ecological environment catastrophe. Besides, being both qualitative and quantitative, the approach could be employed to explore not only static characteristics bat also dynamic mechanism of man-land system. Although our work is only a maiden attempt and still calls for further effort to improve it, the case study of Tianjin in this paper would assure as the great promising future to apply, catastrophe theory to sustoinable devetopment modeling,展开更多
The purpose of this paper is to study the issues on keeping the continuous development of Tibetan economy and the relative stability of its ecosystem. Hence, in order to achieve the object, the study analyzes the stat...The purpose of this paper is to study the issues on keeping the continuous development of Tibetan economy and the relative stability of its ecosystem. Hence, in order to achieve the object, the study analyzes the status quo of economic development in Tibet and the problems of resource exploitation. It especially discusses frailty of Tibetan eco-environment, and evaluates the contradictions between the traditional economic developing mode and the safety of plateau's ecosystem. It concludes that there is an inevitable clash between the development of Tibetan economy and the safety of plateau's eco-system; this problem cannot be avoided by any decision maker, Therefore, the character of Tibetan econvironment and the requirement of its economic development strategy determine that ecological economy developing mode is the only choice for Tibet. This paper suggests that it should be compensated by the national government to assure that Tibetan economy can keep a higher developing speed. In accordance with the feature of plateau eco-economy system and demand of Tibetan economic development, this paper also suggests several methods to apply the ecoeconomy developing strategy of Tibet.展开更多
In this paper, the studies show that the framework of the original organizational models based on the philosophy view is constructed. The driving forces are also expatiated in the paper. Matching with the time and spa...In this paper, the studies show that the framework of the original organizational models based on the philosophy view is constructed. The driving forces are also expatiated in the paper. Matching with the time and space in which the organization exists, fitted with the extra environment, making the organization take effect and properly controlling the important potential factors for the organizations further are the four driving forces development. The supporting pillars are cooperation in the competition, communication, negotiation and proper equal culture environment. At last, the researches point out that organization is a process, while organizational model is only a tool for us to realize the world.展开更多
This paper explains environmental problems from the point of ecunomy. Referring to the “System of Integrated Environmental and Economicat Accounting”(SEEA) promulgated by United Nations in 1993. the authors have s...This paper explains environmental problems from the point of ecunomy. Referring to the “System of Integrated Environmental and Economicat Accounting”(SEEA) promulgated by United Nations in 1993. the authors have setup a model of environmental and economic accounting after the discussion and modification of the concepts of prodoction, assets, and environmental costs. Taking ecological environment of Chongqing as an example, the envirunmental and economic analyses is done. The nesults of the model reflect .sustainabitity of ecologieal environment and environmental costs directly or indirectly in macro-economy.展开更多
From the view of hominine bounded rationalities, this paper analyzes the important relationships between ecology and economics with behavioral finance. With a different focus, this paper adopts a new conceptualization...From the view of hominine bounded rationalities, this paper analyzes the important relationships between ecology and economics with behavioral finance. With a different focus, this paper adopts a new conceptualization of stock to show how this conceptualization leads to a new measure of the interaction between ecology and economics, based on bounded rational agents. The hierarchical structure of ecological economic system is described with a multi-agent sinmlation program. This paper also develops an ecological economic model, in which behavioral finance theories are applied to simulating the dynamics system. With the model this paper confirms, that macro-level indicalors of sustainability are predictably influenced by behaviors of bounded rational agents at the micro-level, We discuss the significance of these findings in order to better understand the ecological-economic system based on behavioral finance.展开更多
In the work one-productive model of economic dynamics the labor-force involved in production is investigated the case when or function with constant elasticity of substitution (CES) is studied. is considered. The de...In the work one-productive model of economic dynamics the labor-force involved in production is investigated the case when or function with constant elasticity of substitution (CES) is studied. is considered. The dependence of the consumption volume on production function coincides with the Cobb-Douglas function展开更多
In this paper, a new model of urban environmental resource management is introduced. The article analyzes the gap between urban environmental management and the management of economy and human resources. The significa...In this paper, a new model of urban environmental resource management is introduced. The article analyzes the gap between urban environmental management and the management of economy and human resources. The significance, the key points, the implementation procedures, and steps of eco-budget cycle are discussed.展开更多
It is stipulated in the China national document, named'The Economical Appraisal Methods for Construction Projects' that dynamic analysis should dominate the project economical appraisal methods. This paper has...It is stipulated in the China national document, named'The Economical Appraisal Methods for Construction Projects' that dynamic analysis should dominate the project economical appraisal methods. This paper has set up a dynamic investment forecast model for Yuanbaoshan Surface Coal Mine. Based on this model, the investment reliability using simulation and analytic methods has been analysed, and the probability that the designed internal rate of return can reach 8.4%, from economic points of view, have been also studied.展开更多
At the present stage, the exploitation loss and waste of mineral resources are serious.lf this trend goes on, it will undoubtedly accelerate the resource depletion. Based on the values of mineral resources and their n...At the present stage, the exploitation loss and waste of mineral resources are serious.lf this trend goes on, it will undoubtedly accelerate the resource depletion. Based on the values of mineral resources and their natural and economic attibutes, this paper sets up a multi-mine mineral resource exploitation model in the market competition. In addition, it analyses the struc-ture of the model and derives optimal conditions. Finally it gives a detailed interpretation of the practical application of the model for instance.展开更多
Choosing a strategy for sustainable development is national level aimed at the simultaneous fulfillment of economic, a fundamental problem that requires non-trivial approaches at the social and environmental goals. Th...Choosing a strategy for sustainable development is national level aimed at the simultaneous fulfillment of economic, a fundamental problem that requires non-trivial approaches at the social and environmental goals. This contradiction is possible to be adequately described in the complex game-theoretic models. But analysis of them is complicated by the problems of algorithmic solvability and the payoff functions construction. Also, the volume of data required creates considerable complexity increased by the conditions of situations uncertainty and conflict. At the same time, international organizations, such as UN (United Nations), ITU (International Telecommunications Union), are widely used index system. Indices, built on the aggregation of elementary indicators, allow the estimation of the components of the system and its overall development. The paper discusses the basic concepts of game-theoretic approach to the problems of finding strategies for sustainable development, using indicative analysis techniques. In the proposed approach, estimating of sustainability is considered as the result of finding the optimal values of the payoff functions in general game-theoretical model where the players are matched indices. The interests of the player are to increase of the corresponding index and the optimal situation is implemented as a set of optimal payoff functions values. This allows switching from processing of large amounts of data describing the behavior of the ecological-economic system by the aid of indicators to aggregate estimations, which significantly reduce the sample, and also facilitates the interpretation of the results.展开更多
Based on the value theory of mineral resource, a dynamic evaluation model of mineral resource property is erected, which not only takes the factors of extractions into consideration but also those of explorations. The...Based on the value theory of mineral resource, a dynamic evaluation model of mineral resource property is erected, which not only takes the factors of extractions into consideration but also those of explorations. The solution process of the model is described and the differential solution is presented. Then the paper comes to the conclusion that the differential solution is also the optimal depletion path of the resource.展开更多
In recent years, the Industrial economy of country although maintained a high growth rate, but most industry which is still extensive economic growth mode. This paper taking Dong'e County as an example, discusses the...In recent years, the Industrial economy of country although maintained a high growth rate, but most industry which is still extensive economic growth mode. This paper taking Dong'e County as an example, discusses the idea of circular economy in industrial applications, in the analysis of Situation and the existence questions of Dong'e County Industrial Development Present, pushing forward circular eco-industrial development inevitability, Preliminary design of Dong'e County recycling ecological industry development mode.展开更多
基金Project supported by the Canadian International Development Agency, Canada and the Chinese Academy of Sciences. China (No.KZCX2-413).
文摘While non-point pollution from agriculture has become an increasingly serious problem in China, some progress has been made in studying the causal biophysical processes. However, few studies have assessed the economic consequences of non-point pollution in China or the policy options that could be employed to combat it. In this work a sustainable strategy to control non-point pollution from crop production, which involved taxing excessive inputs of irrigation water and fertilizer, was proposed. The approach taken to assess these measures combined biophysical and economic models,having a trade-off between economic returns and an improved environment. A proven and practical spatially referenced water and nutrient management model was used to determine the quantities of excessive irrigation water and fertilizer for specific soil and land use. Also, a set of indicators were proposed for evaluating the effects of agricultural economic output and agricultural practices on the environment.
基金National Natural Sci-ence Foundation of China (Grant No. 30230090)
文摘The Value of the World's Ecosystem Services and Natural Capital by Costanza in 1997 is generally regarded as a monumem for the research of valuing ecosystem services. However, the classification of ecosystem services, the method of various services summation and the purpose for static global value had be confronted by many criticisms. Based on the summary of these criticisms, suggestions, related function assessment and further study direction, the sustainability of ecosystem Services is presented. The two basic indicators in ecology, productivity and biodiversity, respectively charactering the ability of producing and self-organizing, not only represent the internal function of ecosystem, but also are proportioned to its external function of supporting and providing for human life. On presenting the general.form of ecosystem services assessment, this paper improves the mathematical formula by giving a function adjusting coefficient composea of productivity and biodiversity. Theoretically, the integration of the two indicators reflects the changes of ecosystem services at spatial and temporal scales, can physically assess the sustainability of ecosystem services, and build a firm scientific fundament of value assessment for ecosystem services. Objectively, its application should be strictly tested in next step.
文摘The relationship between the emission of pollutant and economic growth has attracted a lot of attention in the environmental debate of the recent decades. Based on some theoretical and empirical research on environmental Kuznets curve (EKC), this paper introduces the environmental technical innovation and environmental investment into Salow growth model to discuss the relationship between GDP per capital and the emission of pollutant By the dynamic simulation and parameters analysis, the results of the model indicate: (1) when "green" technical progress and environmental investment are fixed, the relationship between GDP per capital and the emission shows the linear relationship; (2) "green" technical progress can lead to the positive growth rates with a decreasing level of emission, which is compatible with an EKC; (3) the proportion of the environmental investment can lead the different growth rates and level of emission. These results can explain that developing countries are "too poor to be green".
基金the RIT College of Liberal Arts Faculty Research Fund for supplemental funding that enabled presentation of the preliminary results at the above mentioned AERE Conference in Asheville, NC
文摘The purpose of this paper is to explore the promise of utilizing some relatively new feedback control techniques in ecosystem management. First, we set forth a basic ecological-economic model of a predator-prey-hunting system in which both the predator and prey have use(flow) and non-use(stock) value and when the predator can inflict transboundary damages. We then use new data from the US Mountain West to show how a particular feedback approach—linear parameter-varying(LPV) control—can be utilized in this context. Our LPV model is able to quantify the cost of managing disturbances that inevitably arise as a manager tries to keep the actual path of the system "close" to its optimum. The results suggest management strategies in mountain ecosystems that feature large, mammalian carnivores.
文摘By means of ISM (Interpretative Structural Modeling) and SD (System Dynamics) methods, this paper made a system dynamics model of urbanization and eco-environment coupling in Jiangsu Province according to the implication and PSR (Pressure State Response) framework of urbanization and eco-environment coupling. Moreover, five typical scenarios during 2000-2015 have been simulated and analyzed based on the time serial statistical data during 1990-2003 in Jiangsu, which indicates: firstly, there are significant differences between the results and the scenarios, and the five coupling models all have comparative advantages and drawbacks; secondly, in terms of the characteristics and regional development disparities of Jiangsu and the general rule of world urbanization process, this paper reveals that only when either population urbanization model or social urbanization model to be correspondingly adopted, the sustainable development among population, economy, urbanization and eco-environment can be realized.
基金This work is supported by the National Natural Science Foundation of China (Grant No.40261002/ 40561006).
文摘It is difficult to afforest in rock desertification region and is the key area for eco-environment treatment. To speed up the comprehensive treatment of rock desertification, several anti-rock desertification modes implemented in Dingtan region, located on the right bank of Huajiang Grand Valley in Beipanjiang Town, are introduced as examples. This paper first analyzes the natural and environmental conditions, the development of rock desertification in the Dingtan region, then the detail of the treatment modes, such as “Chinese wingleaf pricklyash – pig breeding – marsh gas” (Mode One), “amomum villosum – pig breeding – marsh gas” mode (Mode Two), “traditional grain and economic crop (corn, peanut) – amomum villosum or Chinese wingleaf pricklyash” (Mode Three), etc. The eco-economic effects, potential and shortcomings of the above mentioned modes are analyzed and compared. It is proved that Mode One and Mode Two are of good economic effect, but Mode Three of better ecological effect. Solutions to the shortcomings of the modes are also put forward.
文摘The goal of sustainoble development is to preserve sustainabitity trod simultaneously prevent catastrophe in a man-land .system. However, almost all the existing approaches to assessing sustainable development are to measure the sustainability. namely appraise from the obverse side of the sustainable development. So it seems necessary to attack the same task on the reverse, namely to measure the passibility of eatostrophe. In this paper, with a case study of Tianjin, China. we employ catastrophe theory and models to integrate Tianjin's sustainable development indicators, and then deduce the catastrophe risk index ( CRI) to present the level of catastrophic possibility in the city. Applying catastrophe theory, is a new strategy to assess sustainable development and shows great practical significance, especially for those developing regions or countries, who always give more priority to their economy and therefore have more obligation to make sure whether their social economic activities might bring forth any ecological environment catastrophe. Besides, being both qualitative and quantitative, the approach could be employed to explore not only static characteristics bat also dynamic mechanism of man-land system. Although our work is only a maiden attempt and still calls for further effort to improve it, the case study of Tianjin in this paper would assure as the great promising future to apply, catastrophe theory to sustoinable devetopment modeling,
文摘The purpose of this paper is to study the issues on keeping the continuous development of Tibetan economy and the relative stability of its ecosystem. Hence, in order to achieve the object, the study analyzes the status quo of economic development in Tibet and the problems of resource exploitation. It especially discusses frailty of Tibetan eco-environment, and evaluates the contradictions between the traditional economic developing mode and the safety of plateau's ecosystem. It concludes that there is an inevitable clash between the development of Tibetan economy and the safety of plateau's eco-system; this problem cannot be avoided by any decision maker, Therefore, the character of Tibetan econvironment and the requirement of its economic development strategy determine that ecological economy developing mode is the only choice for Tibet. This paper suggests that it should be compensated by the national government to assure that Tibetan economy can keep a higher developing speed. In accordance with the feature of plateau eco-economy system and demand of Tibetan economic development, this paper also suggests several methods to apply the ecoeconomy developing strategy of Tibet.
文摘In this paper, the studies show that the framework of the original organizational models based on the philosophy view is constructed. The driving forces are also expatiated in the paper. Matching with the time and space in which the organization exists, fitted with the extra environment, making the organization take effect and properly controlling the important potential factors for the organizations further are the four driving forces development. The supporting pillars are cooperation in the competition, communication, negotiation and proper equal culture environment. At last, the researches point out that organization is a process, while organizational model is only a tool for us to realize the world.
基金Supported by the Defense Pre-Research Project of the "Tenth Five-Year-Plan" of China (No. 41315040106).
文摘This paper explains environmental problems from the point of ecunomy. Referring to the “System of Integrated Environmental and Economicat Accounting”(SEEA) promulgated by United Nations in 1993. the authors have setup a model of environmental and economic accounting after the discussion and modification of the concepts of prodoction, assets, and environmental costs. Taking ecological environment of Chongqing as an example, the envirunmental and economic analyses is done. The nesults of the model reflect .sustainabitity of ecologieal environment and environmental costs directly or indirectly in macro-economy.
基金Supported by the National Natural Science Foundation of China (No. 70571064), and the Doctorate Foundation of Northwestern Polytechnical University CX200425.
文摘From the view of hominine bounded rationalities, this paper analyzes the important relationships between ecology and economics with behavioral finance. With a different focus, this paper adopts a new conceptualization of stock to show how this conceptualization leads to a new measure of the interaction between ecology and economics, based on bounded rational agents. The hierarchical structure of ecological economic system is described with a multi-agent sinmlation program. This paper also develops an ecological economic model, in which behavioral finance theories are applied to simulating the dynamics system. With the model this paper confirms, that macro-level indicalors of sustainability are predictably influenced by behaviors of bounded rational agents at the micro-level, We discuss the significance of these findings in order to better understand the ecological-economic system based on behavioral finance.
文摘In the work one-productive model of economic dynamics the labor-force involved in production is investigated the case when or function with constant elasticity of substitution (CES) is studied. is considered. The dependence of the consumption volume on production function coincides with the Cobb-Douglas function
基金Supported by the Bureau for Science & Technology of Dalian City (No. 05DLSK013).
文摘In this paper, a new model of urban environmental resource management is introduced. The article analyzes the gap between urban environmental management and the management of economy and human resources. The significance, the key points, the implementation procedures, and steps of eco-budget cycle are discussed.
基金This project has been supported by the seience foundation of the doctorate programmes of the National Education Commission.
文摘It is stipulated in the China national document, named'The Economical Appraisal Methods for Construction Projects' that dynamic analysis should dominate the project economical appraisal methods. This paper has set up a dynamic investment forecast model for Yuanbaoshan Surface Coal Mine. Based on this model, the investment reliability using simulation and analytic methods has been analysed, and the probability that the designed internal rate of return can reach 8.4%, from economic points of view, have been also studied.
文摘At the present stage, the exploitation loss and waste of mineral resources are serious.lf this trend goes on, it will undoubtedly accelerate the resource depletion. Based on the values of mineral resources and their natural and economic attibutes, this paper sets up a multi-mine mineral resource exploitation model in the market competition. In addition, it analyses the struc-ture of the model and derives optimal conditions. Finally it gives a detailed interpretation of the practical application of the model for instance.
文摘Choosing a strategy for sustainable development is national level aimed at the simultaneous fulfillment of economic, a fundamental problem that requires non-trivial approaches at the social and environmental goals. This contradiction is possible to be adequately described in the complex game-theoretic models. But analysis of them is complicated by the problems of algorithmic solvability and the payoff functions construction. Also, the volume of data required creates considerable complexity increased by the conditions of situations uncertainty and conflict. At the same time, international organizations, such as UN (United Nations), ITU (International Telecommunications Union), are widely used index system. Indices, built on the aggregation of elementary indicators, allow the estimation of the components of the system and its overall development. The paper discusses the basic concepts of game-theoretic approach to the problems of finding strategies for sustainable development, using indicative analysis techniques. In the proposed approach, estimating of sustainability is considered as the result of finding the optimal values of the payoff functions in general game-theoretical model where the players are matched indices. The interests of the player are to increase of the corresponding index and the optimal situation is implemented as a set of optimal payoff functions values. This allows switching from processing of large amounts of data describing the behavior of the ecological-economic system by the aid of indicators to aggregate estimations, which significantly reduce the sample, and also facilitates the interpretation of the results.
文摘Based on the value theory of mineral resource, a dynamic evaluation model of mineral resource property is erected, which not only takes the factors of extractions into consideration but also those of explorations. The solution process of the model is described and the differential solution is presented. Then the paper comes to the conclusion that the differential solution is also the optimal depletion path of the resource.
文摘In recent years, the Industrial economy of country although maintained a high growth rate, but most industry which is still extensive economic growth mode. This paper taking Dong'e County as an example, discusses the idea of circular economy in industrial applications, in the analysis of Situation and the existence questions of Dong'e County Industrial Development Present, pushing forward circular eco-industrial development inevitability, Preliminary design of Dong'e County recycling ecological industry development mode.