scholarly journals A Three-Stage Hybrid Model for Space-Time Analysis of Water Resources Carrying Capacity: A Case Study of Jilin Province, China

Water ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 426 ◽  
Author(s):  
Tong Liu ◽  
Xiaohua Yang ◽  
Leihua Geng ◽  
Boyang Sun
Keyword(s):  
Economic Development ◽  
Water Resources ◽  
Carrying Capacity ◽  
Water Demand ◽  
Water Transfer ◽  
Jilin Province ◽  
Development Pattern ◽  
Industrial Water ◽  
Water Efficiency ◽  
Water Resources Carrying Capacity

Water shortage, water pollution, shrinking water area and water mobility are the main contents of the water resources crisis, which are widespread in the social and economic development of Jilin Province. In this paper, a three-stage hybrid model integrating evaluation, prediction and regulation is constructed by combining the load-balance method and the system dynamics method. Using this model, the current states of water resources carrying capacity (WRCC) in 2017 and the trend of water demand/available from 2018 to 2030 were obtained. Using the orthogonal test method, the optimal combination program of agricultural and industrial water efficiency regulation and water resources allocation was selected. The results show that the pressure of the human–water resources system in Changchun, Liaoyuan and Baicheng is greater than the support, and the other six cities are not overloaded. The water demand in Jilin Province and its nine cities will increase from 2018 to 2030, if the current socio-economic development pattern is maintained. Therefore, we change the water quantity carrying capacity index by controlling agriculture, industrial water efficiency and trans-regional water transfer. Compared with 2015, among the optimal program obtained, the change range of the water use per 10,000 RMB of agricultural output is (−5%, 25%), and the water use per 10,000 RMB of industrial added value is (−45%, −35%), and the maximum water transfer is 1.5 billion m3 per year in 2030. This study analyzes the development pattern of WRCC in the process of water conservancy modernization in Jilin Province and provides reference for other provinces to make the similar plan.

Fuzzy Comprehensive Evaluation of Carrying Capacity of Water Resources in Shanxi Province

2014 ◽  
Vol 641-642 ◽  
pp. 53-57
Author(s):  
Yang Liu ◽  
Hao Wang ◽  
Jian Hua Wang ◽  
Xiang Dong Chen ◽  
Jia Hong Liu
Keyword(s):  
Economic Development ◽  
Water Resources ◽  
Carrying Capacity ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Shanxi Province ◽  
Ahp Method ◽  
Water Resources Carrying Capacity ◽  
Socio Economic Development ◽  
Water Resources Utilization

Based on adequate consideration of status of water resources utilization and socio-economic development in the Shanxi Provinces, the AHP method was used to calculate the weights of each index and the fuzzy comprehensive evaluation of water resource carrying capacity in the Shanxi Province was carried out from 2006 to 2011. The evaluation results indicated that the overall level of the water resources carrying capacity in Shanxi Province was contained in critical state, however, a steady rise.

scholarly journals Conception and evaluation methodology of water resources carrying capacity based on three-level analysis

2020 ◽  
Vol 20 (6) ◽  
pp. 2359-2374
Author(s):  
Pengfei Lin ◽  
Jinjun You ◽  
Lin Wang ◽  
Ling Jia ◽  
Hong Gan ◽  
...  
Keyword(s):  
Water Resources ◽  
Carrying Capacity ◽  
Evaluation Methodology ◽  
Water Efficiency ◽  
Water Resources Systems ◽  
Shiyang River Basin ◽  
Water Resources Carrying Capacity ◽  
Rigid Constraint ◽  
System Water ◽  
Level Analysis

Abstract In supply-oriented water development, water is a rigid constraint on sustainable development in many parts of the world, especially in arid and semi-arid areas. The water resources carrying capacity (WRCC) concept represents the maximum socio-economic scale that can be supported by water exploitation without causing an irreversible impact on the ecosystem. In this paper, three-level framework is put forward to illustrate and quantitatively evaluate the WRCC. The first level is the principal body, which focuses on the study of water resources systems. The second level is the carried object, including the socio-economic system, water ecological system, and environment system. The third level is the coupling of the principal body and carried object to calculate the WRCC. This three-level WRCC model was applied to the load conditions of the Shiyang River Basin (SRB). The results show that the SRB is overloaded, and only 1.99 million people can be carried at the modern carrying level. The WRCC could be increased by optimizing industrial structures and improving water efficiency. This method provides a tool to help policymakers develop sustainable approaches to environmental management and planning.

scholarly journals Assessment of water resources carrying capacity based on fuzzy comprehensive evaluation – case study of Jinan, China

2020 ◽  
Author(s):  
Yi Wu ◽  
Zhongyu Ma ◽  
Xiang Li ◽  
Li Sun ◽  
Shaohua Sun ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Carrying Capacity ◽  
Water Demand ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Ecological Environment ◽  
Utilization Rate ◽  
Water Resources Carrying Capacity ◽  
Per Capita

Abstract Jinan is a city that typifies the water resource shortage in North China. This study selected nine indices to evaluate the regional water resources carrying capacity (WRCC), which is an important constraining factor in relation to socioeconomic development and the ecological environment. The AHP-CRITIC weighting method was applied to determine the index weighting, and WRCC dynamics during 2011–2016 were analysed and evaluated quantitatively using the fuzzy comprehensive evaluation method. The results revealed the following. (1) During 2011–2016, the comprehensive score of the WRCC was <0.4, indicating poor WRCC. (2) The degree membership of the average evaluation results to V1, V2, and V3 increased successively during 2011–2016. The degree membership of V2 in 2011–2013 was greater than that of V3; however, the situation was reversed during 2014–2016. (3) The indices of available amount of water resources per capita, utilization rate of water resources, water supply per capita, modulus of water supply, quota of domestic water demand, and population density were factors that affected the WRCC of Jinan unfavourably. Conversely, the indices of water demand per 10,000 Yuan industrial output value and water use rate of the ecological environment were factors that played positive roles in improving the WRCC.

scholarly journals Will China's water resources be safe in 2030?

Water Policy ◽  
2021 ◽  
Author(s):  
Lishuo Guo ◽  
Lifang Wang
Keyword(s):  
Economic Development ◽  
Water Resources ◽  
Water Use ◽  
Carrying Capacity ◽  
Water Resource Management ◽  
Resource Management System ◽  
Water Resources Carrying Capacity ◽  
Social And Economic Development ◽  
The Status ◽  
Use Efficiency

Abstract This paper is distinct from existing studies on water resources carrying capacity which usually use dimensionless data to represent trend and status of water resources carrying capacity. Here, on the grounds of the most stringent water resource management system and following the principles of water determining population, water determining city scale, water determining production and so on, water resources carrying capacity prediction model was established. The water resources carrying capacity was represented by population, which can directly reflect the status of water resources. Under the rigid constraints of water use quantity and water use efficiency, six scenarios were set to predict China's maximum population in 2030. The results demonstrated that the maximum population in each scenario is close to 1.45 billion of National Population Development Plan. It means water resources rigid constraints can support population and economic growth at the socio-economic development current pace and path. Total water use quantity will not break through the limit of 800–900 billion m3 when achieving the expected goals of social and economic development, not even more than 700 billion m3. Meanwhile, in order to relieve water resources stress, to improve water resources carrying capacity, and to accelerate construction of a water-saving society, some suggestions were put forward.

scholarly journals Daya Dukung Sumberdaya Air dan Indeks Kekritisan Air Sub DAS Cisokan Hulu

2021 ◽  
Vol 10 (3) ◽  
pp. 402
Author(s):  
Dwi Rustam Kendarto ◽  
Edy Suryadi ◽  
Rizky Mulya Sampurno ◽  
Audi Putra Cahyabhuana
Keyword(s):  
Ecosystem Services ◽  
Water Resources ◽  
Water Balance ◽  
Water Supply ◽  
Carrying Capacity ◽  
Water Demand ◽  
A Value ◽  
Water Resources Carrying Capacity ◽  
Criticality Index ◽  
Area Data

Upper Cisokan sub-watershed is a natural ecosystem of water resource providers that can be used directly or indirectly by the community in it. The population rate and sectoral needs in a sub-watershed area are estimated have put pressure to the water resources balance. The value of the carrying capacity and the water criticality index in the existing condition and its projections for the next 10 years are known from the water balance analysis. The availability of water resources (Wn) was determined based on the flow rate probability (Q80) of Weibull Method, the value of groundwater estimation, springs and wells, and also the raw water supply of local water company. Water demand (qpt) was estimated based on Statistic data of Upper Cisokan sub-Watershed 2020 and the projection for 2030, industrial data, agricultural area data, livestock production data, and fishery area data. The water resources carrying capacity (Cw) of the Upper Cisokan sub-watershed is generally still adequate (High), but at the peak of the dry season, namely June to November, the water carrying capacity status shows a value of 1.84 (Critical) to 0.24 (Deficit). In general, the water criticality index is still safe (Not Critical), but in the dry period, especially in July, August and November, it shows a value of 125% to 421% (Very Critical). To anticipate the water crisis, all stakeholders should allocate water efficiently according to its availability. So that the sub-watershed ecosystem is sustainably provide ecosystem services for providing water resources to the community. Key words: Ecosystem Services, Water Supply, Water Demand, Water Balance, Water Resources Carrying Capacity, Water Criticality Index, Upper Cisokan Sub Watershed

Application of Set Pair Analysis in Water Resources Carrying Capacity Assessment

2014 ◽  
Vol 1065-1069 ◽  
pp. 2999-3003
Author(s):  
Ying Qin Chen
Keyword(s):  
Economic Development ◽  
Water Resources ◽  
Carrying Capacity ◽  
Sustainable Use ◽  
Evaluation Criteria ◽  
Evaluation Index System ◽  
Capacity Assessment ◽  
Set Pair Analysis ◽  
Water Resources Carrying Capacity ◽  
Pair Analysis

Water carrying capacity assessment is to reveal the relationship between water resources, population, and economy, fully use water resources, and make economic development go hand in hand with protection of water resources, which simultaneously promote sustainable social and economic development. Based on the analysis of water resources carrying capacity defined, according to the measure of the demand for sustainable use of water resources, using a combination of quantitative and qualitative methods to construct water resources carrying ability evaluation index system with three aspects of socio-economic systems, environmental systems and water systems, gives the five evaluation criteria, proposed set pair analysis to evaluate it, analyze the advantages of set pair analysis, and finally select Gaochun as case study areas, provide a new method for the carrying capacity of water resources.

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