Search

In order to quantitatively evaluate the impact of inter-industry water rights transfer on economy and society in the main stream of the Yellow River in Inner Mongolia, the paper analyzed the impact of water rights transfer on agriculture, and the impact of water rights transfer on water use, production and operation, annual income, people's livelihood and economy of all industrial enterprises. The results show that the transfer of inter-industry water rights in the main stream of the Yellow River in Inner Mongolia in 2019-2021 has driven the total investment of industrial projects to 599.58 billion Yuan, created 122 145 new jobs, the gross regional product is 44.709 billion Yuan, the industrial added value is 238.821 billion Yuan, the annual tax revenue is 19.47 billion Yuan, the newly paved road area is 13.161 7 million km², and the new green area is 30.995 million km². The agricultural output value and farmers' income have been significantly increased, local livelihood issues have been effectively solved, and ecological protection and social and economic development along the Yellow River have been promoted. The transfer of water rights between industries in the main stream of the Yellow River in Inner Mongolia has alleviated the bottleneck of water resources of industrial enterprises along the Yellow River, realized the multi-win of farmers' production increase, economic efficiency increase and ecological restoration, and provided strong support for ecological protection and high-quality development of the Yellow River Basin. [ABSTRACT FROM AUTHOR]

In order to investigate the dynamic evolution and regional differences of quaternity cooperation of water resources-ecology-city-industry in the Yellow River Basin, the paper adopted the synergy model, kernel density estimation, Dagum gini coefficient and its decomposition to estimate it based on the data of 76 major prefecture-level cities in the Yellow River Basin from 2016 to 2020. The results show that the number of cities in primary, intermediate and good coordination is 30, 33 and 13 respectively. The level of synergy among cities is on the rise, but the absolute difference between cities is expanding and the relative difference is narrowing. except for Hu-Bao-E-Yu urban agglomeration, the absolute difference of the coordination degree of the other six urban agglomerations all shows an expanding trend. The internal differences between the upper and lower reaches of the Yellow River show a downward trend, while the internal differences in the middle reaches show an upward trend. The difference between the upper and middle reaches is the largest, and it shows a further expansion trend, and the difference between the upper and lower reaches is gradually narrowing. The difference in Hu-Bao-E-Yu urban agglomeration is the smallest and the difference in Guanzhong urban agglomeration is the largest. The difference between Guanzhong urban agglomeration and Shandong peninsula urban agglomeration is the smallest, and the difference between Jinzhong urban agglomeration and Shandong peninsula urban agglomeration is the largest. In the future, we should further strengthen factor coordination and regional coordination, give play to the dynamic comparative advantages of various regions, and promote the in-depth implementation of ecological protection and high-quality development strategies according to local conditions in the Yellow River Basin. [ABSTRACT FROM AUTHOR]

In order to effectively alleviate the Contradiction between supply and demand of water resources and realize sustainable economic development, it is urgent to improve the efficiency of water resources utilization. Based on the inter-provincial panel data of the Yellow River Basin from 2007 to 2019, this paper adopted DEA model to calculate the water use efficiency of each province and region, and used Malmquist index to reveal the contribution source of dynamic change of water use efficiency. The results show that: a) the overall water use efficiency of the Yellow River Basin is at a high level, and the utilization efficiency presents a trend of first decreasing and then increasing and the efficiency level of most provinces has a slight decline; b) from the perspective of regional differences, the water use efficiency is higher in the lower reaches and lower in the middle and upper reaches, with a spatial pattern of higher in the east and lower in the west' and significant differences among provinces;《) from the perspective of Driving factors, the technological progress rate is the main contribution source of the overall water use efficiency and the decline of technical efficiency is mainly due to the drop of scale efficiency in various regions. Based on 1his, the paper put forward some suggestions, such as coordinating regional cooperation within, flyer basin, promoting the integrated management of regional water resources utilization among basin as a unit and simultaneously enhancing the positive effect of technological progress and technological efficiency on the improvement of water use efficiency in the Yellow River Basin. [ABSTRACT FROM AUTHOR]

In order to deal with the imbalance of water resources in the water receiving area of the Yellow River Diversion Project in Henan Province and provide a reference for the rational allocation of water resources in the water received area, this paper used Lorentz Curve to calculate the Gini coefficient of 14 prefecture level cities in the water received area, and used the method of connection number calculation combined with the subtractive set pair potential to diagnose and discriminate the unbalanced sub areas. The results show that from 2010 to 2020, the matching of water resources with population and cultivated land area in the Yellow River diversion and received area is in a relatively balanced or balanced level, and the overall water resources spatial equilibrium level is in a relatively balanced or balanced level for a long time; the severe situation of the spatial balance grade of water resources and population shows that Zhengzhou radiates to the surrounding areas, and the spatial balance grade of water resources and cultivated land area shows that the north of Henan Province is worse than that of the south; in 2020, the vulnerable areas of water resources spatial balance include Zhengzhou, Puyang, Xinxiang and Anyang, which are the main control objects of water resources balanced distribution. [ABSTRACT FROM AUTHOR]

In order to implement the water resources rigid constraint system and quantify it concretely, based on the in-depth analysis of its conceptual connotation and requirements, following the principles of systematization, difference, operability and measurability, this paper built an indicator system of water resources rigid constraint from four aspects of basic ecological water use, water use control of economic and social development, water use control of different industries and water use efficiency control. It described the uses and determination methods of each index in detail. Finally, the indicator system was applied in the quantitative calculation of rigid constraint index of water resources by water sources and industry in different level years of Gansu Province, and the rigid constraint index system of water resources in 2025 and 2035 in Gansu Province were determined, which was 12.14 billion and 13.22 billion m3 respectively. The result shows that the built indicator system of water-resources rigid constraint has better adaptability and feasibility. [ABSTRACT FROM AUTHOR]

Water supply system is an important system for the production and life of urban residents and the development of social ecology. However, with the increasing demand for water resources, the current urban water shortage is becoming increasingly serious. In addition, the overall construction and operation cost of urban water supply system is also increasing. In order to save water resources as much as possible and minimize the cost of water supply on the basis of ensuring the quality, pressure and water demand of various users, this paper proposed a multi-source water supply system scheme and carried out the optimal allocation of water intake, treatment capacity of water plants and distribution capacity of various users. Firstly, the structure of urban water supply system was briefly introduced; secondly, the mathematical model of multi-source water supply system optimal allocation was established, and the working process of the optimization algorithm used in the optimization process was analyzed; finally, the optimal allocation method of multi?source water supply system proposed in this paper was verified with the Zunyi tourism development zone as the research area. The results show that the proposed optimization method can achieve the optimal configuration of multi-source water supply system with less iterations. [ABSTRACT FROM AUTHOR]

In order to systematically analyze and accurately quantify the matching characteristics of water resources and economic and social development in prefecture-level cities, typical factors such as total water resources, water consumption, population, GDP and cultivated area were selected in this paper, and a new quantitative research idea that simultaneously applying the calculation methods of matching degree based on Gini coefficient and data sequence was proposed. Taking 10 prefecture-level cities along the Shaying River as examples, this paper quantitatively analyzed the spatial-temporal matching relationship between water resources and economic and social development from 2009 to2018. The results show that the application of the above two methods can comprehensively study the matching issue of the two systems elements from the perspective of the whole time/space and the single city/time. There are some differences in the temporal Gini coefficient among prefecture-level cities, but the matching degree of different elements is basically consistent and the results are all good. Except that the temporal matching degrees of total water resources and GDP, water consumption and GDP present a low-high-low evolution trend, the results of other elements present a fluctuation trend over time. The spatial Gini coefficient varies little on the time scale, while there are significant differences among different matching elements. The spatial matching degree is basically consistent in time and the results of some prefecture level cities are poor, especially in Zhengzhou, Nanyang and Zhumadian cities. [ABSTRACT FROM AUTHOR]

In order to promote the rational allocation of water resources in Shaanxi Province and the Yellow River Basin and ensure regional water security, based on virtual water theory and inter-regional input-output table of China, this paper calculated the water consumption coefficients of three major industries virtual water volume in Shaanxi Province, and the virtual water trade volume between this province and other provinces in China in 2007, 2010, 2012, 2015 and 2017 with the help of input-output model, and explored the main factors affecting the change of virtual water volume in Shaanxi Province by using gray correlation model. Further, the inter-industry allocation characteristics of virtual water in Shaanxi Province were analyzed and the virtual water trade network between Shaanxi Province and other provinces were established. The results show that a) the coefficient of direct water consumption and complete water consumption coefficient of the primary industry in Shaanxi Province are higher than that of the secondary and tertiary industries, but all show a decreasing trend over this time, indicating that the province’s water use efficiency are constantly improving. b) The primary and secondary industries account for the majority of the virtual water supply in Shaanxi Province, and the level of agricultural technology, population size, urbanization rate, food production, industry and construction development level are the main factors affecting the virtual water supply of the primary and secondary industries in the province. c) More than 70% of the virtual water in Shaanxi Province are consumed by itself and transported to other provinces mainly are Guangdong, Shanghai, Tianjin, Hebei, Shandong, Shanxi, Inner Mongolia and Henan provinces. It mainly exports to the primary industry. More than 90% of the virtual water input derives from the secondary and tertiary industries of Jiangsu, Guangdong, Shanghai, Anhui, Zhejiang and Hunan provinces. d) Shaanxi Province has maintained net input state for a long time in the inter-provincial trade; compared with the actual water resources trade net virtual water trade between Shaanxi Province and Sichuan, Liaoning, Jilin and other provinces is unreasonable. Shaanxi Province should promote the spatial and temporal matching of virtual water and physical water by adjusting the industrial structure and optimizing the inter-provincial trade network, which is of great significance for the rational use of water resources at the Yellow River Basin scale and even at the national scale. [ABSTRACT FROM AUTHOR]

Urban water demand prediction is an important basis for urban water resources planning, management and decision-making. In order to improve the accuracy of water demand prediction, a nonlinear prediction model based on least squares support vector machine（LSSVM） was proposed. Aiming at the issue that the optimization process of Grey Wolf Optimization Algorithm（GWO） was easy to fall into local optimization, general opposition-based learning and nonlinear control parameters were used to improve the global optimization performance. The improved GWO algorithm was more suitable for the fitting of nonlinear model parameters. Therefore, IGWO was introduced into LSSVM water demand prediction model to fit the super parameters of the model. The model was tested by using the urban water supply data of Shanghai in recent years. The simulation results show that the average relative error of the urban water demand prediction model proposed in this paper is 0.78%, and the maximum relative error is 1.37%. It has good generalization ability and can be used as an effective method of water demand prediction. [ABSTRACT FROM AUTHOR]

The ecological compensation standard for water in inter-basin water transfer should not only truly reflect the value of water resources in inter-basin water transfer, but also consider the economic affordability of the public in the water-receiving area. Taking Beijing, the water-receiving area of the Middle Route of the South-to-North Water Diversion Project as an example, the paper studied its ecological compensation standard, selected water supply, water resources regulation and storage and net primary productivity as the evaluation indicators of ecosystem service value, energy analysis theory was used to calculate the energy/monetary value of each index, and the the incremental value of the service value of the ecosystem in Beijing from the water supply of the South-to-North Water Diversion Project was comprehensively obtained. Conditional value assessment method was used to investigate the population between 20 and 70 years old people in Beijing who had lived continuously for more than half a year to determine the public’s willingness to pay. The results show that the increment of ecosystem service value of Beijing is 3.898 billion Yuan, the public’s willingness to pay is 915 million Yuan, and the willingness to pay is much lower than the increment of ecosystem service value. Based on this, the water resources ecological compensation standard of Beijing South-to-North Water Transfer Project is proposed, the Beijing’s ecosystem service value increment is the upper limit of the ecological compensation standard, and the public’s willingness to pay is the lower limit of the ecological compensation standard. The diversified ecological compensation mechanism provides scientific basis and promotes the sustainable and healthy development of social economy. [ABSTRACT FROM AUTHOR]

In order to help solve the water resources issues that restrict the high-quality development of the Yellow River Basin, based on the multi-regional input-output table of China, this paper calculated the virtual water of the nine provinces in the Yellow River Basin from 2012 to 2015 by building a multi-regional input-output（MRIO） model, and analyzed its flow pattern and trend. The results show that a)the Yellow River Basin changes from virtual net water outflow area to inflow area between 2012 and 2015. The upstream area is always the virtual water outflow area, the downstream area is always the virtual water inflow area, and the midstream area is transformed from the virtual water inflow area to outflow area. The flow pattern of virtual water is not coordinated with water resources. b)Virtual water flow sectors have great industry similarities. However, there are differences in the trade structure of virtual water in different regions. c)In the virtual water trade within the Yellow River Basin, Shaanxi, Shanxi and Henan are the main virtual water consumers, while Qinghai and Ningxia are the main virtual water suppliers. The virtual water flowing out of the Yellow River Basin mainly flows to the northeast and Beijing-Tianjin-Hebei region. Finally, the suggestions are proposed to promote the optimization and allocation of water resources and help the high-quality and coordinated development in the Yellow River Basin. [ABSTRACT FROM AUTHOR]

In order to deal with the imbalance of water resources in the water receiving area of the Yellow River Diversion Project in Henan Province and provide a reference for the rational allocation of water resources in the water received area, this paper used Lorentz Curve to calculate the Gini coefficient of 14 prefecture level cities in the water received area, and used the method of connection number calculation combined with the subtractive set pair potential to diagnose and discriminate the unbalanced sub areas. The results show that from 2010 to 2020, the matching of water resources with population and cultivated land area in the Yellow River diversion and received area is in a relatively balanced or balanced level, and the overall water resources spatial equilibrium level is in a relatively balanced or balanced level for a long time; the severe situation of the spatial balance grade of water resources and population shows that Zhengzhou radiates to the surrounding areas, and the spatial balance grade of water resources and cultivated land area shows that the north of Henan Province is worse than that of the south; in 2020, the vulnerable areas of water resources spatial balance include Zhengzhou, Puyang, Xinxiang and Anyang, which are the main control objects of water resources balanced distribution. [ABSTRACT FROM AUTHOR]

In order to explore variation laws of water resources stress on urbanization in city group so that to adopt countermeasures, this paper put forward the theoretical hypothesis that water resources stress on urbanization in city group was inverted U-shaped of city group in the northern slope of Tianshan Mountain. The paper validated whether water consumption stress on urbanization rate were met with the hypothesis with the urbanization rate and the deviation coefficient according to the panel data from the year of 2000 to 2016. Concluding that changed the law of inverted V-shape on total water consumption stress for proportion of tertiary industry，total water consumption for urbanization rate，the first industry water for urbanization rate from 2000 to 2016，but has not changed inverted V-shape water consumption of primary production stress on proportion of the third industry. Water stress on urbanization has experienced strong stress intensity stress and weak stress (or strong stress) change process. Water stress on urbanization is inverted V shape change with different assumptions city group in the northern slope of Tianshan Mountain. But it is worth asking that primary industry water use stress on proportion of tertiary industry has been increasing. Therefore, how to reduce the industrial water use is the primary problem to be solved. [ABSTRACT FROM AUTHOR]

With the rapid development of economy and society, the sustainable development and utilization of water resources has increasing ly become the focus of social attention. The sustainable utilization of water resources is the guarantee of social and economic sustainable devel opment. Water resources are closely related to social environment and ecological environment. In order to solve the harmonious relationship between water resources and ecology, population and society, scientific development and utilization of water resources has become the key. Based on the relationship between transfer in and transfer out, this paper analyzed the development and utilization rate of water resources in China's primary water resourfes areas, and obtained the change trend of the development and utilization rate of surface water resources by ing and analyzing the development and utilization rate of surface water resources from 2005 to 2019. The results show that, since 2005, the development and utilization rate of surface water resources in the first-class water resources zone has increased slowly. As the water diversion project diverts water into the basin, the surface water supply increases, and the development and utilization rate of surface water re sources changes accordingly. By citing the water transfer project, the water pressure in the water deficient area of the first-class water re sources zone has reduced, which alleviates its water shortage state and plays a positive role in the regional economic and social development. [ABSTRACT FROM AUTHOR]

Water resources security directly or indirectly affects the development of society, economy, environment, etc. The study of water resources security is great significant to regional sustainable development. This paper used analytic hierarchy process method to comprehen? sively evaluate the water resources security of 14 cities in the Yellow River diversion and water receiving area of Henan Province in 2019 from three aspects of water quantity, water efficiency and water quality. Three representative indicators were selected in each aspect, the data of each indicator were normalized and the comprehensive water resources security index was calculated in combination with the weight obtained by the analytic hierarchy process, Thus, the comprehensive evaluation grade of water resources security of each prefecture and city was ob? tained. The results show that Hebi in the Yellow River diversion and water receiving area of Henan Province is at the "unsafe" level, Luoy? ang is at the "safe" level, and the water resources security levels of other cities are at the "basic safe" and "relatively safe" levels. There is still a certain gap from the "safe" level requirements. It is necessary to strengthen the management and allocation of water resources from all aspects, optimize the utilization scheme, and realize the balance between supply and demand of water resources. [ABSTRACT FROM AUTHOR]

Based on the practices of water resources development, utilization and protection, such as the environmental flows management of Chishui River in Guizhou Province, the small hydropower exit meehanism pilot in Fujian Province, the ecological water compensation of Tal-imu River in Xinjiang Autonomous Region, the emergency diversion water of "water transfer from Chacrsen Reservior to Xianghai Re-servior", this paper summarized the four environmental flows management models; ecological flow management, ecological flow management to maintain basic water volume (water level), ecological water volume management with total amount control and environmental flows man­agement for emergency diversion water with ecological protection as the goal. The paper then put forward recommendations on strengthening environmental flows management; changing the development concept, enhancing the awareness of ecological flow protection, establishing and improving the system the mechnism, improving the ecological flow managment system, improving the functions of water conservancy facilitics, improving the ecological flow allocation and scheduling capabilities, etc. [ABSTRACT FROM AUTHOR]

It has become the necessary path of economic and social development under the constraint of water resources to comprehensively improve the utilization efficiency of water resources and accelerate the construction of water-saving society. In order to promote the coordination between the development of economic society and water resources carrying capacity, this paper analyzed the adjustment scheme of the industrial development scale and industrial structure optimization under different levels of water utilization efficiency, based on the measurement of the correlation and relevancy between industrial structure and water resources in Ningxia. The results show that the composition of primary industries and tertiary industries in Ningxia has a strong correlation with the composition of water consumption, which is related to the degree of dependence of industrial development on water resources. The development of tertiary industries in Ningxia is dominated by characteristic tourism and sales of agricultural and sideline products, which is highly integrated with the primary industries. Water resources have a strong constraint effect on industrial structure and there is a large space for industrial structure adjustment. In the future, Ningxia should be supported by limiting the scale of agricultural development, introducing advanced water-saving technology and promoting the development of industries from primary to secondary and tertiary industries. Water intensive industries should be developed into high-tech industries and traditional service industries should be developed into modern service industries. The industrial structure should be optimized and upgraded step by step. [ABSTRACT FROM AUTHOR]

This paper used the improved water ecological footprint model to calculate the water ecological footprint and water ecological sur¬plus/ deficit of Shandong Province from 2007 to 2016，and analyzed the dynamic and spatial distribution of water ecological footprint in Shan¬dong Province in recent years，then used LMDI to construct a water ecological footprint decomposition model to analyze the driving effects of economy，structure，technology and population effects. The results show that the ecological deficit of per capita water resources in Shandong Province show a volatility trend from 2007 to 2016，the difference between the water environment and ecological deficit is obvious around 2010 and the deficit value has been increased sharply after 2010. Besides，the per capita water environment deficit of each city in 2016 is greater than that the water deficit and the results of water resources ecological footprint decomposition show that the economic， structural and population effects positively promote the growth of water resources ecological footprint in Shandong Province，then the technical effect corre¬spondingly negatively inhibits. [ABSTRACT FROM AUTHOR]

The mainstream of the Yellow River has been continuously flowing for 20 years since August 1999. However，the continuous flow of the mainstream does not mean that the contradiction between water supply and demand in the basin has been truly alleviated. It is only through scientific regulation that the contradictions of water shortage have been changed from explicit to invisible，transfer from mainstream to the tributary，transfer from the river to the land surface，transfer from the surface to the underground and transfer from the concentrated dam¬age to the basin to evenly destroy. With the continuous development of the economic and social development，the academic community has begun to controversy about the lack of water of the Yellow River basin in the current conditions. Based on the review of the phenomenon of “ Yellow River Cutoff”，this paper compared the water supply and demand situation and ecological status after the cutoff from the perspective of the whole basin； and built a rigid deficiency based on the degree of system affordability，the concept of water and elastic water shortage and the criteria for division. Through the analysis and calculation，it believes that the current annual water shortage is 1.14 billion m3，of which the rigid water shortage is 6.30 billion m3 and the elastic water shortage is 5.10 billion m3. [ABSTRACT FROM AUTHOR]

Faced with the increasingly prominent problem and the contradiction of water resources spatial imbalance, promoting and implementing the spatial balance of water resources has become an important content of current water conservancy work. However, what is the spatial equilibrium of water resources and what is its theoretical method are the problems that need to be solved urgently at present. This paper put forward the concept of spatial equilibrium of water resources and its theory through sorting out and understanding the existing research on spatial equilibrium and combining with the formation background of the idea of spatial equilibrium development of water resources. Based on the understanding of the spatial equilibrium principle of water resources, the theoretical system framework of spatial equilibrium of water resources were put forward and its main research contents were expounded. Finally, the next step of water resources spatial equilibrium research was prospected from three aspects: theory, method and application. In general, the research of spatial equilibrium theory of water resources plays an important guiding role in solving the spatial imbalance in China’s modern water control practices, supporting the demonstration and planning of national water conservancy construction, promoting the spatial equilibrium development of water resources-economy society and ecological environment. It can lay a foundation for the future development of water resources spatial balance control and practice. [ABSTRACT FROM AUTHOR]

The integrated water regulation of the Yellow River is the first case in large rivers. It is also an important means to alleviate the contradiction between water supply and demand in the Yellow River basin and solve the frequent interruption of the Yellow River. This paper analyzed the necessity of integrated water regulation, reviewed the development history of the Yellow River integrated water regulation for 20 years, summarized the integrated water regulation technology and compared the Yellow River runoff situation, the amount of freshwater resources flowing into the sea, water security, ecology environmental conditions, changes of the estuary wetlands and types and quantities of offshore organisms on the basis of the integrated water regulation conditions before and after that. The results show that the integrated water regulation of the Yellow River has enabled the Yellow River to achieve continuous flow for 20 consecutive years, which has produced significant social, economic and ecological effects. Based on the existing problems of the Yellow River integrated water regulation, the development direction of Yellow River water scheduling was proposed. [ABSTRACT FROM AUTHOR]

Based on the most stringent water management system and the “three red lines” control measurement standards, the accounting contents of the water resources balance sheet include water quantity, water quality and water ecology. This paper compiled the water resources balance sheet in the period of 2011-2016 in Sichuan Province, using the fuzzy comprehensive evaluation method, virtual governance cost method and energy analysis method. The research shows that Sichuan Province has abundant water resources, which provides sufficient water resources for Sichuan's social and economic development. Influenced by the economic development of various industries and the increase of water consumption of Sichuan Province, the value of water resources assets at the end of 2016 decreased by 79.224 billion Yuan compared with that in 2011. Sichuan Province strengthened the control of water environmental pollution and the restoration of water ecological environment, which increased the net assets of water resources by 80.465 billion Yuan in 2016. [ABSTRACT FROM AUTHOR]

This paper empirically tested the influences of water resources on industrial structure adjustment by employing cointegration, VECM estimation, impulse response and variance decomposition based on the data from Henan Province during the period of 1999-2015. The results show that: a) water resources has played a role in promoting industrial structure adjustment, but this positive effect is relatively limited and passive; b) there is a weak dynamic self-adjusted mechanism between Henan Provincial water resources and industrial structure adjustment in the short term. [ABSTRACT FROM AUTHOR]

The paper defined the connotation of the water resources balance sheet, and discussed the confirmation, measurement, recording, and reporting of relevant elements such as water resources assets, water resources liabilities, and water resources owner equity. It built a water resources balance sheet framework for water resources assets. The main features of the three elements of liabilities and owner's equity were to set appropriate types of subjects and designed the form of the physical quantity of water resources and the style of value-based water re­sources balance sheet. Based on the proposed theory, it tested a water balance sheet for the Yellow River basin. [ABSTRACT FROM AUTHOR]

Water shortage has seriously restricted the development of Jiaodong area, and water resources optimal operation has an important means of relieving water crisis. It is great significant to study the inter-basin water resources dispatching based on Jiaodong Water Diversion Project. This paper chose Weifang, Qingdao, Yantai and Weihai as research areas, 2014 as the base year, 2020 and 2025 as planning years. Considering the constraints of water supply capacity, water distribution capacity, water balance, minimum water supply, and taking the minimum total water shortage as the goal, the scheduling model which based on the optimal allocation of water resources had been built by using MATLAB software. Through this, the optimal operation proposal was further optimized. The results show that the total water shortage rate of the four cities decreases significantly; under the guarantee rates of 50%, 75% and 95%, the total water shortage rate in 2020 will be reduced by 15.35%, 15.75% and 16.85% respectively, while in 2025 it will be reduced by 13.27%, 13.26% and 14.19% respectively. [ABSTRACT FROM AUTHOR]

Henan Province, as a traditional agricultural province is the core region of grain production in China, where the situation of water resources is complex. The study of matching characteristics of water and soil resources has positive influence on ensuring the agricultural food production. In this paper, considering the portfolio analysis of regional cultivated soil and water resources, the matching coefficients of water and soil resources was calculated firstly based on the data from 2000 to 2014 of 18 cities in Henan Province. Moreover the Lorenz curve was mapped. Therefore the Gini coefficient was calculated to reflect the unbalanced degree of the matching of water and soil resources. Finally, the changing characteristics of the water and soil resources were comparatively analyzed from the spatial and temporal distribution view of Henan Province by considering the parameters of agricultural water and using proportion, water and soil matching coefficient and Gini coefficient. The results show that the degree of the matching of water and soil resources is undesirability and the quantity of water resources is relatively deficient in Henan Province. Therefore, some useful suggestions which contribute to optimization of the matching degree of water and soil resources were put forward to ensure the benign development of the future agriculture in Henan Province. [ABSTRACT FROM AUTHOR]