英文摘要

Studyoninput-outputefficiencyandinfluencingfactorsofwater-energy-foodsystemintheYellowRiverBasin/ZHANG Changzheng1,2, RUI Huimin1,2(1. Business School, Hohai University, Nanjing 211100, China; 2. Institute of Industrial Economics, Hohai University, Nanjing 211100, China)

Abstract: From the perspective of water-energy-food system, this article analyzes the input-output efficiency of water-energy-food system in the Yellow River Basin by using SBM Network DEA method, and set up Tobit model to analyze the influencing factors of water-energy-food system efficiency. The results show that the overall efficiency of water-energy-food system in the Yellow River Basin has a fluctuating upward trend, in which the water resources system is the “short board”. The efficiency of water-energy-food system in Shandong, Sichuan and Henan are high, while in Gansu, Inner Mongolia, Ningxia and Qinghai are at a low efficiency level. The population growth and climate disasters have a negative impact on efficiency of water-energy-food system, while the improvement of water resources abundance and economic can promote the growth of efficiency. In addition, the population growth, urbanization climate, disasters and the economic development level have a great impact on low efficiency areas, while the richness of water resources, the level of opening-up and the level of technological innovation have a great impact on medium and high efficiency areas.

Keywords: Yellow River Basin; water-energy-food system; input-output efficiency; network DEA; Tobit model

Cardingandanalysisofwater-energy-foodnexusstudy/ZHENG Defeng, WANG Ming, AN Zhiying(School of Geography, Liaoning Normal University, Dalian 116029, China)

Abstract: In order to explore the research trend of the water-energy-food nexus, the research progress and development context of the water-energy-food nexus was combed based on the classification framework of value space. On this basis, the document characteristics were visually analyzed by using CiteSpace software, and the correlation degrees of the indicators and methods in these documents were analyzed by Apriori algorithm. The results show that: The researches on the water-energy-food nexus are currently in the primary stage, and the conceptual framework is constantly improving. While exploring the definition of water-energy-food nexus, new elements are added and new conceptual framework is put forward. The relationship among water, energy and food was analyzed qualitatively and quantitatively by establishing the relationship model or the simulation model. From 2015 to 2020, the number of published articles on the water-energy-food nexus increased rapidly, and the research is in a boom. The countries such as the United States, the United Kingdom and China play leading roles; Among the top five organizations, there are two (Beijing normal university and Chinese academy of sciences) from China, and they have more cooperation with other organizations around the world. Conceptual framework, nexus, land use, resource consumption, life cycle assessment, sustainable development, security, management, climate change and policy integration are the main research focuses in different periods.

Keywords: water-energy-food; nexus; CiteSpace; Apriori algorithm; value space

Studyonrepeatedgameandstrategyoftransboundarybasinwaterresourcesfortheup-downtypeofinternationalrivers:takingtheAralSeaBasinasanexample/GUO Lidan1,2, WU Yueting1, HUANG Feng2,3, JING Peiran4, WANG Haoxuan3(1.Business School, Hohai University, Nanjing 211100, China; 2.International River Research Centre, Hohai University, Nanjing 211100, China; 3.College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China; 4.School of Water Resources and Hydropower Engineering, Wuhan 430072, China)

Abstract: The Aral Sea Basin in Central Asia where transboundary water problems are prominent has been chosen as an example, the infinite repeated game under different water resources strategies among upstream and downstream countries have been analyzed, and a parametric analysis has been carried out to verify its rationality. The results show that the infinite repeated game can provide an effective solution to the dilemma of transboundary water cooperation. In the infinite repetition game, regardless of the game strategy, the degree of patience is the basis for transboundary water cooperation. The game strategy of introducing penalty make it more likely that both parties to reach cooperation; both parties pay attention to future benefits and under certain constraints, will tend to choose a cooperative strategy. To break through the dilemma of transboundary water governance and realize the sustainable development of the basin, it is necessary for the basin countries to enhance mutual trust from the perspective of maximizing the overall interests of the basin, to find the intersection of common interests and balance of interests, and to coordinate and restrain the behavior of both parties through the basin institutions when necessary.

Keywords: transboundary river; water resources strategy; transboundary water cooperation; repeated game; Aral Sea Basin

Researchonthespatial-temporalcouplingandcoordinationofthedevelopmentandutilizationofwaterresourcesandhigh-qualityeconomicdevelopmentinChina/LI Feng, MA Yinhan(Business School, Hohai University, Nanjing 211100, China)

Abstract: In order to explore the spatial-temporal coordination relationship between China’s water resources and high-quality economic development, based on PSR theory and coupling coordination theory, this paper uses Moran index and GIS to analyze and characterize the coupling coordination results in time and space, and finally use the spatial Durbin model to analyze the influencing factors for coupling coordination degree. The results show that: from 2011 to 2020, China’s water resources development and utilization and the overall high-quality economic development level have been continuously improved, and the gap between regional development levels has been narrowing; the degree of coupling and coordination between the two systems has shown an upward trend, and most regions will reach the intermediate level of coupling and coordinated development. There is a significant autocorrelation in space, and the overall coupling coordination degree shows a radial distribution that decreases from east to west and from south to north, and in recent years, the primary coordination and intermediate coordination areas have formed a trend of agglomeration and expansion from the outside to the inside; the level of economic development, the advancement of science and technology, and the improvement of the level of environmental regulation all have a significant positive impact with a spatial spillover effect in promoting the coordinated development of the two systems in the region and neighboring regions. The improvement of water resource level also has positive impact on the coordinated development of the two systems in the region, while the effect is not yet significant for neighboring regions.

Keywords: water resources; high-quality economic development; PSR model; coupling coordination; spatial and temporal differentiation

Impactofwaterresourcesconstraintsonagriculturaldevelopmentinfivenorthwestprovincesbasedonquantityandqualityconsiderations/HUA Jian1,2, CAO Huimin1, PAN Xueqing1, LIU Lei1(1.Business School, Hohai University, Nanjing 211100, China; 2.Jiangsu “World Water Valley” and Water Ecological Civilization Collaborative Innovation Center, Nanjing 211100, China)

Abstract: Based on the resource constraint theory, an index system of water resources comprehensive level including water quantity and water quality was constructed, and a damping model was established to measure the constraint effect of water resources quantitative and qualitative comprehensive level on agricultural economic development in the five provinces of northwest China from 2001 to 2019. The results show that: Considering the water quantity and water quality, the comprehensive level of water resources in the five provinces in northwest China shows an upward trend of fluctuation during the sample period. Compared with the single constraint of water resources quantity, the constraint of water resources quantity and quality on agricultural economic development of the five provinces in northwest China is obviously greater. From the perspective of time, the damping coefficient of agricultural economic development constrained by water resources fluctuates significantly in northwest China. From the perspective of space, there is a spatial agglomeration characteristic of water resources constraint in northwest China, and the constraint intensity decreases first and then increases.

Keywords: water resource restriction; water quantity; water quality; growth drag; agricultural development

WatersecurityevaluationandobstaclefactoranalysisoftwomajorregionsinChinaunderthebackgroundoflarge-scaleprotection/TIAN Ze, XIAO Lingying, REN Yangjun(Business School, Hohai University, Nanjing 211100, China)

Abstract: In this paper, the catastrophe progression model, the Dagum Gini coefficient and its decomposition method, and the obstacle diagnosis model are used to comprehensively evaluate the water security status of the Long Economic Belt and the Yellow River Basin from 2009 to 2019, and further explore their spatial differences and obstacles through comparative analysis. factor. The results show that: during the investigation period, the water safety level of the Yangtze River Economic Belt has changed from less safe to safer, while the Yellow River Basin has been in an unsafe state; from the perspective of spatial differences, compared with the Yellow River Basin, the overall water safety of the Yangtze River Economic Belt is comprehensive. The regional distribution of the index is more coordinated, and the contribution of hypervariable density is the main source of regional differences in the comprehensive index of water security in the Yangtze River Economic Belt, while the inter-regional differences are the main source of regional differences in the Yellow River Basin. The economic belt is mainly hindered by the pressure system, while the Yellow River Basin is mainly hindered by the response system, the state system and the influence system. Based on this, policy suggestions are put forward to strengthen the scientific allocation of water resources, improve the economical and intensive use of water resources, and improve the comprehensive management of soil erosion.

Keywords: water security; catastrophe progression model; spatial differences; obstacle diagnosis model; Yangtze River Economic Belt; Yellow River Basin

ResearchoninfluencingfactorsforcooperationperformanceofriverbasinwaterenvironmentgovernanceEPCproject/XUE Song1,2, GAO Xing1,2(1.Business School, Hohai University, Nanjing 211100, China; 2.Project Management Institute, Hohai University, Nanjing 211100, China)

Abstract: In order to optimize the cooperation performance management of the EPC project of basin water environment management, it is necessary to analyze the influencing factors and internal relations of the cooperation performance of river basin water environment governance EPC project. Starting from the ESG concept, the grounded theoretical research method is used to extract the influencing factors of 17 watershed water environment governance EPC project cooperation performance from the three dimensions of environmental responsibility, social responsibility and governance responsibility. The improved ISM-MICMAC method is used to analyze the hierarchical structure of the influencing factors. and effect relationship. The research results show that: energy saving, raw material saving, public life quality, employment promotion, and difficulty are the direct factors that affect the cooperation performance of EPC projects in river basin water environment governance, with high dependence and low driving force. Secondary recycling, secondary pollution, water quality standards, economic growth, external support, public participation, social stability, management level, and technical level are key factors, and the dependence and driving force are not high. The cooperative relations, cooperation contracts, and the ability of partners to participate are the root factors, which have low dependence and high driving force.

Keywords: river basin water environment governance; EPC project; cooperation performance; influencing factors; grounded theory; improvement of ISM-MICMAC

ResearchontheinfluenceofwaterenvironmenttreatmentPPPcontractflexibilityonprojectfinancingrisk/CHEN Jialing, YANG Gaosheng, ZHANG Xiaoli(Business School, Hohai University, Nanjing 211100, China)

Abstract: In order to reduce the financing risk of PPP projects in water environment governance, a theoretical model was constructed based on contract flexibility, expected benefits of PPP projects, trust and financing risks, and the impact mechanism of contract flexibility on project financing risks was explored. The research conclusions include: the contract price flexibility, renegotiation flexibility, and incentive flexibility all have a significant negative impact on financing risk; the expected return of PPP projects plays a complete intermediary role in the relationship between price flexibility and financing risk, and in the impact of renegotiation flexibility, incentive flexibility on financing risk play a partial intermediary role; the goodwill trust can enhance the negative impact of price flexibility and incentive flexibility on financing risk, but it will weaken the negative impact of renegotiation flexibility; the ability trust plays a negative role in the relationship between price flexibility and renegotiation flexibility on financing risk regulating effect. Finally, it provides feasible suggestions for reducing project financing risks from aspects such as optimizing contract terms, innovating return mechanisms, and assessing trust levels.

Keywords: water environment treatment; contract flexibility; PPP project expected return; trust; PPP project financing risk

Researchonriskassessmentofurbancentralizedsurfacewatersourcemanagement/FANG Guohua1, WANG Hongzhen2, YU Fengcun3, ZHANG Yu1, LI Danyang1(1.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China; 2.PowerChina Kunming Engineering Corporation Limited, Kunming 650051, China; 3.Anhui and Huaihe River Institute of Hydraulic Research, Bengbu 233000, China))

Abstract: Based on the pressure-state-response model (PSR), the expert consultation method and principal component analysis method were used to construct the urban centralized surface water source management risk assessment index system. The analytic hierarchy process and entropy weight methods were adopted to determine the subjective and objective weights of the water source management risk evaluation indicators, respectively, and the combined weights were calculated further; finally the combined-weight and grey-fuzzy comprehensive evaluation model based on the grey assessment and fuzzy comprehensive evaluation theory was established. The Baguazhou (Zuocha) Shangba water source of Yangtze River in Nanjing city was selected for the case study, and the management risk value was calculated to be 0.411 8, which is in a general risk level. The risk prevention and control measures including accelerating the construction of emergency water sources, improving the emergency security system of water sources and promoting the construction of water source monitoring system are proposed in view of the existing risks.

Keywords: urban centralized surface water source; management risk evaluation; combined weighting; grey fuzzy comprehensive evaluation

WaterenvironmentgovernanceintheHenansectionoftheYellowRiverBasinfromtheanalyticalframeworkofcollaborativegovernance/DUAN Baoxiang, HUANG Lijuan(School of Economics and Management, Nantong University, Nantong 226019, China)

Abstract: In order to promote the process of the water environment governance in the Henan section of the Yellow River Basin, the characteristics and quality of water environment in Henan section of the Yellow River Basin are analyzed. Based on the collaborative governance theory, this paper constructs an analytical framework composed of the collaborative governance structure of multiple subjects and four influential mechanisms, which include interest coordination mechanism, information disclosure mechanism, institutional trust mechanism and policy synergy mechanism. Finally, some suggestions are put forward for improving the collaborative governance of the water environment in the Henan section of the Yellow River Basin as follows: optimize the scope of authority, promote the participation of multiple subjects and improve the influential mechanisms.

Keywords: Henan section of the Yellow River Basin; water environment; collaborative governance; plural subject

ThoughtsontheprocessofRiverandLakeChiefSystemtopromotetheconstructionofwaterecologicalcivilizationinDongfang/TANG Yongjun1, MA Xinyu1, SHEN Juqin2, FENG Mingxiang3, QIN Ke3(1.Business School, Hohai University, Nanjing 211100, China; 2.Agricultural Science and Engineering School, Hohai University, Nanjing 211100, China; 3.Dongfang River Chief Office, Dongfang 572699, China)

Abstract: Under the reform of “Province-Managing-Country”, fiscal decentralization brings pressure to local governments’ public environmental governance and ecological civilization construction. This paper analyzes the role of River and Lake Chief System (RLCS) in promoting the construction of water ecological civilization by combining with the special natural conditions of Dongfang City and taking the work of RLCS as an example. It is found that under the existing water ecological environment in Dongfang City, RLCS solves the problems of organization and system governance. The optimization directions to further promote the construction of water ecological civilization in Dongfang City include: perfecting the responsibility distribution mechanism of river and lake governance, further deepening the construction of the system of directly administering counties by the province, promoting the law enforcement ability of villages and towns, optimizing the design of examination and incentive system, mobilizing the enthusiasm of governance subjects at all levels, activating public responsibility, and shaping the water culture with the river and lake system as the core.

Keywords: River and Lake Chief System; water ecological civilization construction; Dongfang City

Analysisonskillstrainingwillingnessandmoderatingmediatingeffectsofreservoirresettlers/ZHAO Yuanke1,2, SHI Guoqing1,2, YANG Tao3(1.School of Public Administration, Hohai University, Nanjing 211100, China; 2.National Research Center for Resettlement, Hohai University, Nanjing 211100, China; 3.Resettlement Bureau, Yellow River Conservancy Commission, Zhengzhou 450000, China)

Abstract: Based on the questionnaire survey of 642 sample farmers in the evaluation of social stability and development of resettlers from Danjiangkou reservoir of South Water Transfer in 2020, the technology acceptance model is integrated based on the planned behavior theory model, and the structural equation model method is used to empirically analyze the willingness and influencing factors of resettlers’ skill training. The results show that: perceived training easyness has the greatest impact on resettlers’ willingness to participate in skill training, and perceived training effectiveness and training behavior norms have no significant impact on resettlers’ willingness to participate in skill training; The mediating effect of training attitude on the relationship between training ease and skill training willingness is significant, and there is some mediating effect; Age group and residence group have significant moderating effects on the mediating effect of “perceived training easyness→training attitude→skill training willingness”. Therefore, we should start from enhancing the easyness of resettlers’ skill training and changing the attitude of resettlers’ skill training, implement resettlers’ skill training and policy incentives by classification, and use the effect of skill training to promote employment to improve resettlers’ income and livelihood development.

Keywords: reservoir resettler; skills training; structural equation model; South-to-North Water Diversion

StudyontheadaptabilityoffishermentochangeworkandgoashoreunderthebackgroundofbanningfishingintheYangtzeRiverBasin:acasestudyoffishermentransferringtoshoreinHongzeLake/LIU Yongjin, QIN Yana, XIA Wenhao(Business School, Hohai University, Nanjing 211100, China)

Abstract: The extensive development for a long time has posed a threat to China’s ecological environment. Driven by the policy of banning fishing in the Yangtze River, all localities actively guide fishermen to change work and go ashore in order to protect the environment. Therefore, from the perspective of fishermen, it is very important to study their adaptability to work on land for the formulation and improvement of relevant policies. Based on the survey data of Hongze Lake fishermen changing work on land, this paper constructs the fishermen’s adaptability evaluation index system and makes an empirical study on the fishermen’s adaptability. The research shows that the overall adaptability of fishermen is general, which is more obvious among fishermen with older age and long working time, while the adaptability of different fishermen in different dimensions is different. According to the research results, taking advantage of local resources, fishermen are involved in policy-making, and relevant policy suggestions are put forward from the perspectives of education and training.

Keywords: fishermen; transferred to shore; adaptability; fuzzy analytical hierarchy process; Hongze Lake

Thewillingnesstotransferfarmlandofruralreservoirresettlementanditsinfluencingfactors：takingtheresettlementareaofPingqiaoReservoirinGuizhouasanexample/CHEN Shaojun1, LEI Ming1, SUN Jie2, WANG Xin3(1.School of Public Administration, Hohai University, Nanjing 211100, China; 2.Real Estate Registration Center of Huai’an District Administrative Examination and Approval Bureau, Huai’an 223001, China; 3.Zhejiang Design Institute of Water Conservancy and Hydroelectric Power, Hangzhou 310002, China)

Abstract: After the reservoir immigrations lose their land due to relocation, solving the problem of land allocation for resettlement and preventing the risk of poverty caused by relocation is of great significance to the resettlement’s livelihood restoration and production resettlement. Based on the field survey data in the resettlement area of Pingqiao Reservoir in Guizhou Province, this paper constructs an index system of the essential characteristics of immigrants, farmland resource endowment, farmland transfer conditions and environmental perception levels. At the same time, a logistic regression model was constructed to analyze the influencing factors of the willingness of migrants to transfer their market-oriented land to agricultural land. The results show that the family structure of migrants has a significant impact on the willingness to transfer farmland; financing opportunities can significantly improve the willingness of migrants to transfer farmland; the quantity of land resources before land acquisition and the value of transferred farmland have a significant positive effect on the willingness of migrants to transfer farmland. The government subsidy, social pension insurance and agricultural land transfer organization did not have a significant impact. It is suggested that policies should be implemented according to households, reasonable guidance should be taken, financing opportunities and subsidies should be increased, the rural social security system should be improved, and land dependence should be reduced. In addition, the land transfer market in resettlement area should be improved, and the immigrants should be actively guided to participate in farmland transfer.

Keywords: reservoir resettlement; willingness to transfer farmland; resettlement zone; farmland transfer