Regional water security evaluation with risk control model and its application in Jiangsu Province, China

2021 ◽  
Author(s):  
Jun Zhao ◽  
Yaqian Chen ◽  
Jinchao Xu ◽  
Juliang Jin ◽  
Guoqing Wang ◽  
...  
Keyword(s):  
Risk Control ◽  
Water Security ◽  
Control Model ◽  
Jiangsu Province ◽  
Security Evaluation ◽  
Regional Water

scholarly journals Regional Water Resources Security Evaluation Based on a Hybrid Fuzzy BWM-TOPSIS Method

2020 ◽  
Vol 17 (14) ◽  
pp. 4987
Author(s):  
Yan Tu ◽  
Kai Chen ◽  
Huayi Wang ◽  
Zongmin Li
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
North China ◽  
Water Security ◽  
Evaluation Methodology ◽  
Security Evaluation ◽  
Equal Weight ◽  
Topsis Method ◽  
Security Levels ◽  
Regional Water

Nowadays, water resource security is becoming increasingly prominent, and this problem is a primary bottleneck restricting China’s future sustainable development. It is difficult to come to a unified conclusion on water resources security, and applications of highly feasible evaluation methods are lacking in practice. In this paper, a novel evaluation methodology is proposed for regional water resources security evaluation. First, water security is divided into two aspects: water quantity security and water quality security. The disposal rate of harmless household garbage, the excellent water resources proportion, and the functional water body loss proportion are creatively considered as indicators of water quality security in the evaluation system. In addition, a Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method is used to evaluate the water security levels in different regions. For distinguishing the importance of different indicators, a Best–Worst Method (BWM) is employed to calculate the indicator weights, as triangular fuzzy linguistic sets can more flexibly describe the preferences of decision makers (DMs) regarding the indicators; therefore, it is embedded in BWM to determine indicator weights. Moreover, the fuzzy BWM-TOPSIS method is applied to evaluate the water security levels of six regions in North China, a comparison analysis with the equal weight TOPSIS method as well as the fuzzy BWM-AHP method, and a sensitivity analysis for indicator weights are presented to illustrate the effectiveness of this proposed method. Finally, some suggestions based on the evaluation results are given for effective and rational utilization of water resources in North China.

Application of Water Poverty Index in the Reclamation Regional Water Security Evaluation

2013 ◽  
Vol 717 ◽  
pp. 909-913
Author(s):  
Ning Jiang ◽  
Xue Feng Yu ◽  
Li Li Chu
Keyword(s):  
Weighted Average ◽  
Water Security ◽  
Utilization Rate ◽  
Security Evaluation ◽  
Water Poverty Index ◽  
Increasing Trend ◽  
Security Problem ◽  
Forest Coverage ◽  
Reclamation Area ◽  
Regional Water

Aiming at the water security problem, the Reclamation area was took example to analysis. The WPI of every three years during 2000-2009 of Reclamation area is calculated by using weighted average method. The results show that WPI appears in an increasing trend during past 10 years in Reclamation area. If the following aspects can be improved in the future including controlling the pesticide and fertilizer, reducing water loss and soil erosion, increasing forest coverage, irrigation efficiency and investment in hydraulic construction, the utilization rate of water resources will be further improved.

scholarly journals A comprehensive evaluation of regional water safety systems based on a similarity cloud model

2017 ◽  
Vol 76 (3) ◽  
pp. 594-604 ◽  
Author(s):  
Yongtai Ren ◽  
Jiping Yao ◽  
Dongyang Xu ◽  
Jing Wang
Keyword(s):  
Comprehensive Evaluation ◽  
Cloud Model ◽  
Water Security ◽  
Water Safety ◽  
Research Subjects ◽  
Security Issues ◽  
Assignment Method ◽  
Safe State ◽  
Safety Systems ◽  
Regional Water

Regional water safety systems are affected by social, economic, ecological, hydrological and other factors, and their effects are complicated and variable. Studying water safety systems is crucial to promoting the coordinated development of regional water safety systems and anthropogenic processes. Thus, a similarity cloud model is developed to simulate the evolution mechanisms of fuzzy and complex regional systems of water security and overcome the uncertainty that is associated with the indices that are used in water safety index systems. This cloud generator is used to reciprocally transform a qualitative cloud image with a quantitative cloud characteristic value, and the stochastic weight assignment method is used to determine the weight of the evaluation indices. The results of case studies show that Jiansanjiang's water safety systems were in a safe state in 2002–2011, but the water safety systems in the arid area of Yinchuan City were in a dangerous state in 2006–2007 because of climate factors and a lack of effective water and soil resource protection. The experimental results are consistent with the research subjects' actual situations, and the proposed model provides a tool for decision makers to better understand the security issues that are associated with regional water safety systems.

Analysis of Characteristics of Hydrology and Water Resources of the Heilong (Amur) River Basin

2012 ◽  
Vol 550-553 ◽  
pp. 2525-2532
Author(s):  
Chang Lei Dai ◽  
Cheng Gang Yu ◽  
Lan Lin ◽  
Di Fang Xiao ◽  
Hui Yu Li
Keyword(s):  
Water Resources ◽  
Geographic Location ◽  
Water Security ◽  
Amur River Basin ◽  
Amur River ◽  
Water Resources Development ◽  
The North ◽  
Hydrology And Water Resources ◽  
Regional Water ◽  
Resources Development

As the most remote river in the North of China, Heilong (Amur) River have an abundant precipitation in the basin and a rich runoff. Due to the special transnational spanned geographic location, Heilong (Amur) basin 's borders, water rights, regional water resources development are a big concern. Due to lack of multinational management and information, analysis of characteristic of Heilong (Amur) watershed's hydrology and water resources are not enough. In order to serve the water resources development and water security, and to better understand the state of hydrology and water resources in Heilong River, this article make a reference to the Heilong River Hydrographic and the research of hydrologic data about Heilong River, detailed analyzed the characteristics of hydrology and water resources. For reference to scientists of geography, water conservancy and hydropower who are interested in Heilong River's hydrographic.

scholarly journals Evaluation of regional water security in China based on dualistic water cycle theory

Water Policy ◽  
2017 ◽  
Vol 20 (3) ◽  
pp. 510-529 ◽  
Author(s):  
Huan Liu ◽  
Yangwen Jia ◽  
Cunwen Niu ◽  
Yongde Gan ◽  
Fei Xu
Keyword(s):  
Water Resource ◽  
Evaluation System ◽  
Water Resource Management ◽  
Water Cycle ◽  
Southern China ◽  
Common Factor ◽  
Water Security ◽  
Northern China ◽  
Polluted Water ◽  
Regional Water

Abstract Water security is the basis of sustainable human development. A new evaluation system of water security was established based on the natural–social dualistic water cycle theory, and then applied to characterize water security issues in China. At the national scale, the current state of water security was moderate, which was attributed to the improvement of water resource management level. However, it is still seriously inadequate in coordination of water use between ecological protection and socio-economic development, and wastewater treatment and reuse. Consequently, a resilient and integrated water management with adaptive capacity is needed. Moreover, the water security state in southern China was better than that in northern China, which was mainly attributed to the abundance of water resources in the south. Although the critical factors hindering water security were significantly different among China's 31 administrative regions, the low urban sewage reuse rate was a common factor, and irrigation efficiency was low in most parts of southern China. While in northern China, water resource overexploitation, polluted water quality and degraded aquatic ecosystems were common challenges. The results are consistent with the actual situations of China, and the related analysis can provide a reference for increasing regional water security.

scholarly journals A fully nonlinear free boundary problem arising from optimal dividend and risk control model

2019 ◽  
Vol 9 (3) ◽  
pp. 425-452
Author(s):  
Chonghu Guan ◽  
◽  
Fahuai Yi ◽  
Xiaoshan Chen ◽  
◽  
...  
Keyword(s):  
Free Boundary ◽  
Boundary Problem ◽  
Free Boundary Problem ◽  
Risk Control ◽  
Control Model ◽  
Fully Nonlinear ◽  
Optimal Dividend
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