Irrigation was developed in ancient China.The management of water resources has existed since ancient times when the embryonic form of water right system was established.From perspectives of environmental law,the wate...Irrigation was developed in ancient China.The management of water resources has existed since ancient times when the embryonic form of water right system was established.From perspectives of environmental law,the water rights system in ancient China,especially the water rights system after Ming Dynasty,gave no explicit concept to water rights,but the participatory management of water users was included in implementation.Such management had the same connotation with the modern concept of water rights and thereby it has an instructional significance to perfect the water rights system of in modern China.展开更多
As the source of life,water is indispensable to human beings.Being aware of the water stress imposed by population growth,climate change,rapid urbanization,pollution,many scholars and decision makers argue that the es...As the source of life,water is indispensable to human beings.Being aware of the water stress imposed by population growth,climate change,rapid urbanization,pollution,many scholars and decision makers argue that the establishment of water rights and their system is the primary measure to tackle the water crisis problem.However,no consensus has been reached regarding the definition,nature and content of water rights both practically and academically.By examining the existing theories regarding water rights,this article tries to redefine the entitlements from the aspect of civil law.Meanwhile,it provides a system which classifies various rights by the four functions of usufruct.展开更多
The principal-subordinate hierarchical multi-objective programming model of initial water rights allocation was developed based on the principle of coordinated and sustainable development of different regions and wate...The principal-subordinate hierarchical multi-objective programming model of initial water rights allocation was developed based on the principle of coordinated and sustainable development of different regions and water sectors within a basin. With the precondition of strictly controlling maximum emissions rights, initial water rights were allocated between the first and the second levels of the hierarchy in order to promote fair and coordinated development across different regions of the basin and coordinated and efficient water use across different water sectors, realize the maximum comprehensive benefits to the basin, promote the unity of quantity and quality of initial water rights allocation, and eliminate water conflict across different regions and water sectors. According to interactive decision-making theory, a principal-subordinate hierarchical interactive iterative algorithm based on the satisfaction degree was developed and used to solve the initial water rights allocation model. A case study verified the validity of the model.展开更多
China has started shifting from relying on supply management to demand management strategy in addressing its water shortage problems.Water option,a financial derivative for water commodity,has been utilized to manage ...China has started shifting from relying on supply management to demand management strategy in addressing its water shortage problems.Water option,a financial derivative for water commodity,has been utilized to manage water demands in the United States and Europe since the 1990 s but is still novel to China.In this study we analyzed the pros and cons of China’s existing system for water rights transfers and proposed an alternative,flexible trading instrument-water options for China.Incorporating the uncertainty to water option pricing,this study first conducted an empirical analysis of the water option in the water-receiving area of the Hanjiang-Weihe River Transfer Project of China,and then evaluated the benefits of the water option applications.Results show that water option trading can bring water cost saving and increase the potential industrially added value for industrial enterprises in the receiving area,and trading of short-and-medium term water options is more favorable than the long-term water options trading.The novel water option trading proposed in this study,once verified through pilot studies,will be helpful in addressing water shortage problems in China.展开更多
Groundwater is an important water resource inHaihe River basin,North China.The number ofaquifers that appear to be declining under conditionsof groundwater overdraft is increasing.To effectivelymanage the water resour...Groundwater is an important water resource inHaihe River basin,North China.The number ofaquifers that appear to be declining under conditionsof groundwater overdraft is increasing.To effectivelymanage the water resources,there is a strong scientificneed to analyze the net use of this important waterresource and to quantify the water rights allocation forimproved understanding of the future water leveltrends and long-term sustainability.展开更多
The rare deposition of water resources conflicts with its limitless demand. This determined the existence of the water rights transaction system. The implementation of the water rights transaction system requires clar...The rare deposition of water resources conflicts with its limitless demand. This determined the existence of the water rights transaction system. The implementation of the water rights transaction system requires clarifying the definition of water resource right above all distinctly. At present, it is a kind of common right system arrangement which needs the Chinese government to dispose of water resources. Though a series of management systems guaranteed the government＇s supply of water resource, it hindered the development of the water market seriously and caused the utilization of water resources to stay in the inefficient or low efficient state for a long time. Thus, we should change the government＇s leading role in the resource distribution and really rely on the market to carry on the water rights trade and transaction. In this way, the water rights could become a kind of private property right relatively, and circulate freely in the market. As a result of this, we should overcome the defects of common right, make its external performance internalized maximally and achieve the optimized water resource disposition and use it more effectively.展开更多
Agricultural water allocation system based on priority rights has caused regional conflicts and downstream ecological degradation. It is the urgent need to introduce the concept of the initial water rights and establi...Agricultural water allocation system based on priority rights has caused regional conflicts and downstream ecological degradation. It is the urgent need to introduce the concept of the initial water rights and establish benefits compensation mechanism to resolve such problems. This paper takes the Shiyang River basin as an example to calculate the opportunity cost of 0.97×10^8 m^3 of agricultural water encroached by the middle reach based on initial water right allocation system under which water is allocated in accordance with the ratio between agricultural population of two different regions concerning the downstream ecological reconstruction needs with Bio-economic model （BEM）. The results suggest that the total economic loss of Minqin County for ecological reconstruction amounts to 2.5 7×10^8 yuan, of which 1.68×10^8 yuan is ecological compensation, representing the economic loss Minqin suffered for ecological reconstruction which shouM burden beneficial groups of ecological reconstruction and 0.89 ×10^8 yuan is the economic loss Minqin suffered due to Liangzhou＇s encroachment behavior which should be compensated by Liangzhou.展开更多
Collective forest tenure reform and water rights system reform are two types of resource system reform initiated by the Chinese government since the implementation of the reform and opening policy of the 1980 s.Forest...Collective forest tenure reform and water rights system reform are two types of resource system reform initiated by the Chinese government since the implementation of the reform and opening policy of the 1980 s.Forest tenure reform has been completed and water rights system reform is ongoing.This study analyzes key points and problems with collective forest tenure reform and summarizes four typical successful reform measures and lessons that will have implications for the developing water rights system：the collective forest-cutting quota system,collective forest tenure compensation,collective forest tenure confirmation,and collective forest tenure trading center.A flexible water permission index,compensation measures in water rights trade,water rights approval,and various forms of water rights trading platforms are proposed as reform measures.This study fills a gap in comparative studies between two important resource system reforms in China and provides a reference for further reform and development of water rights systems locally and abroad.展开更多
With the rapid development of population and economy, the conflict between the supply and demand of water resources is becoming outstanding increasingly, In China, many people concern about the problems of ecological ...With the rapid development of population and economy, the conflict between the supply and demand of water resources is becoming outstanding increasingly, In China, many people concern about the problems of ecological environment water expenditure.However, owning to the shortage of water resources and indefinite water rights, “the hustle effect” of per capita water resource is appeared, Moreover. it caused a series of environment problems. This article differentiates and analyzes the relevant concepts about the ecological enviromnent, and puts forward the defined concept of the rights to the ecological environment water utilization. In addition, it points out the characteristic of those rights, and does elementary study on the allocation principle, methods, and steps on the rights.展开更多
AIM:To compare the impact of the right recumbent position with the sitting position on gastric emptying of water. METHODS:In eight healthy male volunteers,the 13C acetate breath test was performed twice to assess gast...AIM:To compare the impact of the right recumbent position with the sitting position on gastric emptying of water. METHODS:In eight healthy male volunteers,the 13C acetate breath test was performed twice to assess gastric emptying of 100 mL tap water.Subjects were seated in one test and lying on their right side in the other.In both positions,pulmonary 13CO2 exhalation curves were obtained by plotting breath data against time.Percent gastric retention curves were created by analyzing data using the Wagner-Nelson protocol. RESULTS:No significant posture effect was found in pulmonary 13CO2 output curves(P=0.2150),whereas a significant effect was seen in gastric retention curves (P=0.0315).The percent retention values at 10 min and 15 min were significantly smaller when subjects were in the right recumbent position compared with the seated position(P<0.05).Our results verified the accelerating effect of the right recumbent position on gastric emptying of non-nutritive solutions.Concerning clinical implications,this study suggests that placing patients with acute pain on their right side after oral administration of analgesic drugs in solution is justified as an effective practice for rapid pain relief.For patients with gastrointestinal reflux symptoms,sleeping in the right recumbent position may reduce nocturnal symptoms,as delayed gastric emptying can cause reflux symptoms. CONCLUSION:Gastric emptying of water occurs more quickly when a subject lies on the right side compared with sitting.展开更多
The right to water is an emerging sort of human rights aiming to protect the right to water indispensable for the survival and development of individuals. From the perspective of International Human Rights Law, the pa...The right to water is an emerging sort of human rights aiming to protect the right to water indispensable for the survival and development of individuals. From the perspective of International Human Rights Law, the paper analyzes the standards stipulating the international obligations to safeguard the right to water, inspects the state quo of the protection of the right to water in China and demonstrates the lawful suggestions to safeguard the right to water.展开更多
Since rural drinking water projects have diversified investment subjects,complex form,and lacks property right system and policy at national level,there are many difficulties in determining property right of projects ...Since rural drinking water projects have diversified investment subjects,complex form,and lacks property right system and policy at national level,there are many difficulties in determining property right of projects in many areas.This not only puzzles competent authorities and specific management institution,but also is unfavorable for long-term full play of project benefit.Combining related laws,regulations,and policies,this paper analyzed and discussed property right of rural drinking water projects.It proposed establishing usufructuary right to replace division of property right,in the hope of helping improve management of rural drinking water projects.展开更多
Agriculture is the biggest water user in China,and the development of agricultural water-saving has great significance to the national economy and social development. In this paper,the present situation of water used ...Agriculture is the biggest water user in China,and the development of agricultural water-saving has great significance to the national economy and social development. In this paper,the present situation of water used in agriculture irrigation and water-saving potential were analyzed,and the ＂ bottleneck＂ and main problems existing in water-saving irrigation in China were discussed. From the aspects of engineering investment channels,agricultural water-saving policies and management system,reform of agricultural water price and water right transfer,improvement of farmers＇ water-saving consciousness,and promotion of rural land transfer,suggestions were proposed for the development of China＇s agricultural water-saving in future,which will provide a technical support for the sustainable use of agricultural water resources in China.展开更多
文摘Irrigation was developed in ancient China.The management of water resources has existed since ancient times when the embryonic form of water right system was established.From perspectives of environmental law,the water rights system in ancient China,especially the water rights system after Ming Dynasty,gave no explicit concept to water rights,but the participatory management of water users was included in implementation.Such management had the same connotation with the modern concept of water rights and thereby it has an instructional significance to perfect the water rights system of in modern China.
基金supported by the Projects of Southwestern University of Finance and Economics (Grant No 2010XG026)the Innovative Talents Training Fund of Southwestern University of Finance and Economics
文摘As the source of life,water is indispensable to human beings.Being aware of the water stress imposed by population growth,climate change,rapid urbanization,pollution,many scholars and decision makers argue that the establishment of water rights and their system is the primary measure to tackle the water crisis problem.However,no consensus has been reached regarding the definition,nature and content of water rights both practically and academically.By examining the existing theories regarding water rights,this article tries to redefine the entitlements from the aspect of civil law.Meanwhile,it provides a system which classifies various rights by the four functions of usufruct.
基金supported by the Public Welfare Industry Special Fund Project of the Ministry of Water Resources of China (Grant No. 200701028)the Humanities and Social Science Foundation Program of Hohai University (Grant No. 2008421411)
文摘The principal-subordinate hierarchical multi-objective programming model of initial water rights allocation was developed based on the principle of coordinated and sustainable development of different regions and water sectors within a basin. With the precondition of strictly controlling maximum emissions rights, initial water rights were allocated between the first and the second levels of the hierarchy in order to promote fair and coordinated development across different regions of the basin and coordinated and efficient water use across different water sectors, realize the maximum comprehensive benefits to the basin, promote the unity of quantity and quality of initial water rights allocation, and eliminate water conflict across different regions and water sectors. According to interactive decision-making theory, a principal-subordinate hierarchical interactive iterative algorithm based on the satisfaction degree was developed and used to solve the initial water rights allocation model. A case study verified the validity of the model.
基金Under the auspices of the Ministry of Education of Humanities and Social Science Project(No.17XJA790005)Grant of Shaanxi Social Science Association&Shaanxi Statistics Bureau(No.2019TJ053)。
文摘China has started shifting from relying on supply management to demand management strategy in addressing its water shortage problems.Water option,a financial derivative for water commodity,has been utilized to manage water demands in the United States and Europe since the 1990 s but is still novel to China.In this study we analyzed the pros and cons of China’s existing system for water rights transfers and proposed an alternative,flexible trading instrument-water options for China.Incorporating the uncertainty to water option pricing,this study first conducted an empirical analysis of the water option in the water-receiving area of the Hanjiang-Weihe River Transfer Project of China,and then evaluated the benefits of the water option applications.Results show that water option trading can bring water cost saving and increase the potential industrially added value for industrial enterprises in the receiving area,and trading of short-and-medium term water options is more favorable than the long-term water options trading.The novel water option trading proposed in this study,once verified through pilot studies,will be helpful in addressing water shortage problems in China.
文摘Groundwater is an important water resource inHaihe River basin,North China.The number ofaquifers that appear to be declining under conditionsof groundwater overdraft is increasing.To effectivelymanage the water resources,there is a strong scientificneed to analyze the net use of this important waterresource and to quantify the water rights allocation forimproved understanding of the future water leveltrends and long-term sustainability.
文摘The rare deposition of water resources conflicts with its limitless demand. This determined the existence of the water rights transaction system. The implementation of the water rights transaction system requires clarifying the definition of water resource right above all distinctly. At present, it is a kind of common right system arrangement which needs the Chinese government to dispose of water resources. Though a series of management systems guaranteed the government＇s supply of water resource, it hindered the development of the water market seriously and caused the utilization of water resources to stay in the inefficient or low efficient state for a long time. Thus, we should change the government＇s leading role in the resource distribution and really rely on the market to carry on the water rights trade and transaction. In this way, the water rights could become a kind of private property right relatively, and circulate freely in the market. As a result of this, we should overcome the defects of common right, make its external performance internalized maximally and achieve the optimized water resource disposition and use it more effectively.
基金supported by the "100 Talents Pro-gramme" of Chinese Academy of Sciences.
文摘Agricultural water allocation system based on priority rights has caused regional conflicts and downstream ecological degradation. It is the urgent need to introduce the concept of the initial water rights and establish benefits compensation mechanism to resolve such problems. This paper takes the Shiyang River basin as an example to calculate the opportunity cost of 0.97×10^8 m^3 of agricultural water encroached by the middle reach based on initial water right allocation system under which water is allocated in accordance with the ratio between agricultural population of two different regions concerning the downstream ecological reconstruction needs with Bio-economic model （BEM）. The results suggest that the total economic loss of Minqin County for ecological reconstruction amounts to 2.5 7×10^8 yuan, of which 1.68×10^8 yuan is ecological compensation, representing the economic loss Minqin suffered for ecological reconstruction which shouM burden beneficial groups of ecological reconstruction and 0.89 ×10^8 yuan is the economic loss Minqin suffered due to Liangzhou＇s encroachment behavior which should be compensated by Liangzhou.
基金The construction and typical demonstration of water rights trading system of Continental River Regions in Northwestern China(Water resources fee for development research center of Ministry of water resources 2015-2)
文摘Collective forest tenure reform and water rights system reform are two types of resource system reform initiated by the Chinese government since the implementation of the reform and opening policy of the 1980 s.Forest tenure reform has been completed and water rights system reform is ongoing.This study analyzes key points and problems with collective forest tenure reform and summarizes four typical successful reform measures and lessons that will have implications for the developing water rights system：the collective forest-cutting quota system,collective forest tenure compensation,collective forest tenure confirmation,and collective forest tenure trading center.A flexible water permission index,compensation measures in water rights trade,water rights approval,and various forms of water rights trading platforms are proposed as reform measures.This study fills a gap in comparative studies between two important resource system reforms in China and provides a reference for further reform and development of water rights systems locally and abroad.
文摘With the rapid development of population and economy, the conflict between the supply and demand of water resources is becoming outstanding increasingly, In China, many people concern about the problems of ecological environment water expenditure.However, owning to the shortage of water resources and indefinite water rights, “the hustle effect” of per capita water resource is appeared, Moreover. it caused a series of environment problems. This article differentiates and analyzes the relevant concepts about the ecological enviromnent, and puts forward the defined concept of the rights to the ecological environment water utilization. In addition, it points out the characteristic of those rights, and does elementary study on the allocation principle, methods, and steps on the rights.
文摘AIM:To compare the impact of the right recumbent position with the sitting position on gastric emptying of water. METHODS:In eight healthy male volunteers,the 13C acetate breath test was performed twice to assess gastric emptying of 100 mL tap water.Subjects were seated in one test and lying on their right side in the other.In both positions,pulmonary 13CO2 exhalation curves were obtained by plotting breath data against time.Percent gastric retention curves were created by analyzing data using the Wagner-Nelson protocol. RESULTS:No significant posture effect was found in pulmonary 13CO2 output curves(P=0.2150),whereas a significant effect was seen in gastric retention curves (P=0.0315).The percent retention values at 10 min and 15 min were significantly smaller when subjects were in the right recumbent position compared with the seated position(P<0.05).Our results verified the accelerating effect of the right recumbent position on gastric emptying of non-nutritive solutions.Concerning clinical implications,this study suggests that placing patients with acute pain on their right side after oral administration of analgesic drugs in solution is justified as an effective practice for rapid pain relief.For patients with gastrointestinal reflux symptoms,sleeping in the right recumbent position may reduce nocturnal symptoms,as delayed gastric emptying can cause reflux symptoms. CONCLUSION:Gastric emptying of water occurs more quickly when a subject lies on the right side compared with sitting.
文摘The right to water is an emerging sort of human rights aiming to protect the right to water indispensable for the survival and development of individuals. From the perspective of International Human Rights Law, the paper analyzes the standards stipulating the international obligations to safeguard the right to water, inspects the state quo of the protection of the right to water in China and demonstrates the lawful suggestions to safeguard the right to water.
文摘Since rural drinking water projects have diversified investment subjects,complex form,and lacks property right system and policy at national level,there are many difficulties in determining property right of projects in many areas.This not only puzzles competent authorities and specific management institution,but also is unfavorable for long-term full play of project benefit.Combining related laws,regulations,and policies,this paper analyzed and discussed property right of rural drinking water projects.It proposed establishing usufructuary right to replace division of property right,in the hope of helping improve management of rural drinking water projects.
基金Supported by the National Science and Technology Support Project in the "12th Five-Year Plan" Period of China(2014BAD12B04)Project for Young Science and Technology Innovation Talents in Agriculture in Liaoning Province,China(2015033)
文摘Agriculture is the biggest water user in China,and the development of agricultural water-saving has great significance to the national economy and social development. In this paper,the present situation of water used in agriculture irrigation and water-saving potential were analyzed,and the ＂ bottleneck＂ and main problems existing in water-saving irrigation in China were discussed. From the aspects of engineering investment channels,agricultural water-saving policies and management system,reform of agricultural water price and water right transfer,improvement of farmers＇ water-saving consciousness,and promotion of rural land transfer,suggestions were proposed for the development of China＇s agricultural water-saving in future,which will provide a technical support for the sustainable use of agricultural water resources in China.
