scholarly journals Evaluation and spatial-temporal evolution of water resources carrying capacity in Dongting Lake Basin

2021 ◽  
Author(s):  
Zhenghua Deng ◽  
Liqi Dai ◽  
Bing Deng ◽  
Xiaoyong Tian
Keyword(s):  
Water Resources ◽  
Carrying Capacity ◽  
Temporal Evolution ◽  
Water Environment ◽  
Three Dimensional ◽  
Dongting Lake ◽  
Lake Basin ◽  
Entropy Weight ◽  
Xiangjiang River ◽  
Water Resources Carrying Capacity

Abstract A three-dimensional rating index system for water resources system–water environment system–socioeconomic system is constructed based on data from Hunan Dongting Lake Eco-environment Monitoring Center, Hunan Provincial Water Resources Bulletin, and Hunan Statistical Yearbook. The water resources carrying capacity (WRCC) of Dongting Lake Basin from 2009 to 2018 is evaluated by the TOPSIS model combined with analytic hierarchy process (AHP) and entropy weight, and then the temporal evolution and spatial distribution characteristics of the WRCC of the Dongting Lake Basin are analyzed. The results show that: (1) The WRCC in the Dongting Lake Basin decreases from a good level to a reasonable level during the period. Among them, the WRCC of the Ouchi River, Hudu River, and Songzi River Basins decreases significantly. (2) There are obvious spatial differences in the WRCC of the Dongting Lake Basin in 2018, the WRCC order is Lishui River, West Dongting Lake, Zijiang River, South Dongting Lake, Yuanshui River, Xiangjiang River, East Dongting Lake, Songzi River, Hudu River, Ouchi River, with scores of 0.586, 0.526, 0.472, 0.448, 0.416, 0.397, 0.393, 0.313, 0.306, and 0.304, respectively. Finally, some policy recommendations for improving the WRCC of the Dongting Lake Basin are proposed.

Application of Set Pair Analysis Model Based on Entropy Weight for Comprehensive Evaluation of Water Resources Carrying Capacity

2012 ◽  
Vol 195-196 ◽  
pp. 764-769 ◽  
Author(s):  
Liang Ma ◽  
Jing Hua Zhao ◽  
Ming Hong ◽  
Liang Liang Chen
Keyword(s):  
Water Resources ◽  
Carrying Capacity ◽  
Comprehensive Evaluation ◽  
Set Pair Analysis ◽  
Analysis Model ◽  
Entropy Weight ◽  
Water Resources Carrying Capacity ◽  
Attribute Recognition ◽  
Evaluating Methods ◽  
Pair Analysis

In view of the uncertainty of evaluation indicators for water resources carrying capacity the theory of set pair analysis is adopted. The samples are preliminarily classified by calculating the connection degree between the samples and evaluation indicators. Then the samples are further ranked through the identity, difference and antagonism set pair analysis. The weights of evaluation factors in the model are obtained from the avail value of data reflecting the information entropy, by which the weight allocation is more reasonable. The application result of this model to an example is compared with those obtained from integrated evaluating methods and the attribute recognition method. It shows that the proposed method is practical and reasonable.

scholarly journals Research on Comprehensive Evaluation and Coordinated Development of Water Resources Carrying Capacity in Qingjiang River Basin, China

2021 ◽  
Vol 13 (18) ◽  
pp. 10091
Author(s):  
Yujie Wei ◽  
Ran Wang ◽  
Xin Zhuo ◽  
Haoying Feng
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Carrying Capacity ◽  
Water Environment ◽  
Evaluation Index System ◽  
Main Function ◽  
Coordinated Development ◽  
Suitability Evaluation ◽  
Water Resources Carrying Capacity ◽  
Qingjiang River

The protection of a water resource’s ecological environment is one of the most important tasks in the watershed in China. The evaluation of water resources carrying capacity (WRCC) is the foundation for the suitability of territorial space development. It is necessary to further analyze the weaknesses of the coordinated development of various dimensions of WRCC and explore the basis of territorial space development and optimization. This paper considers Chinese unique policy tasks, namely, “three water management together”, the types of main function areas, “red lines” control, and national spatial suitability evaluation, to construct the evaluation index system of WRCC. Monomial evaluation, integrated evaluation, and coupling coordination analysis methods are used separately to evaluate the carrying index, comprehensive carrying index, and coupling coordination degree of WRCC in the Qingjiang River Basin. The results show that: (1) As far as monomial evaluation is concerned, water resource supplies are often overloaded on the overall economy, industrial, and agricultural development; (2) The comprehensive indices of WRCC of the counties in the southwest are obviously better than that of the counties in the northeast; (3) The degree of coupling coordination of WRCC in the Qingjiang River Basin is not high, and is essentially in the primary or barely coordinated level; (4) the short board of WRCC in the Qingjiang River Basin presents obvious spatial characteristics, which from west to east are water environment, water resources and water ecology lagging, respectively. This paper measures WRCC for industry, agriculture, life, and ecology, which is helpful in promoting the suitability evaluation of land space development. Meanwhile, the case study of the Qingjiang River Basin provides reference for other regions to implement the “double evaluation”.

scholarly journals Application of Entropy Weight Method and Philo Model Coupling in Evaluation of Water Resources Carrying Capacity——Taking Hefei City as an example

2019 ◽  
Vol 136 ◽  
pp. 02035 ◽  
Author(s):  
Kun Ding ◽  
Yi Zhang ◽  
Yang Xu ◽  
Chen Yang
Keyword(s):  
Water Resources ◽  
Carrying Capacity ◽  
Comprehensive Evaluation ◽  
Rapid Development ◽  
Evaluation Process ◽  
Entropy Weight ◽  
Water Resources Carrying Capacity ◽  
Entropy Weight Method ◽  
Weight Method ◽  
Reform And Opening Up

Since the reform and opening up, with the rapid development of economy and society, China's water resources are facing severe challenges. However, there is no recognized best method for the evaluation of water resources carrying capacity. The evaluation process is either subjective and random. Either the researcher relies too much on the inherent information of the sample and ignores the subjective initiative. The results of both evaluations are not objective and fair. The entropy weight method is used to determine the weight of sample index, and the water resources carrying capacity is comprehensively evaluated through the coupling of the Philo model. Taking Hefei City as an example, the evaluation results are scientific, reasonable and authentic, which can provide reference for the comprehensive evaluation of water resources carrying capacity of related cities.

Water Resources Carrying Capacity Analysis of Huangshui River during the Period of the Twelfth Five-Year Plan

2015 ◽  
Vol 1092-1093 ◽  
pp. 1202-1208
Author(s):  
Ming Xia Jing
Keyword(s):  
Water Resources ◽  
Social Development ◽  
Carrying Capacity ◽  
Capacity Analysis ◽  
Environmental Resources ◽  
Water Resources Carrying Capacity ◽  
Capacity Level

This paper predicted HuangShui River carrying capacity level of environmental resources at the end of the "twelfth five-year" period and even longer, based on the economic and social development in the base year 2011 data, to provide reference for the development of various government related department reference.

Scenario Analysis on the Water Environment Carrying Capacity of Wuliangsuhai Lake Basin

2012 ◽  
Vol 616-618 ◽  
pp. 1388-1393
Author(s):  
Hong Jun Lei ◽  
Lina Yin ◽  
Bei Dou Xi
Keyword(s):  
Sustainable Development ◽  
Carrying Capacity ◽  
Water Environment ◽  
Social Economy ◽  
Lake Basin ◽  
Environmental Capacity ◽  
Coordinated Development ◽  
The Sustainable Development ◽  
Capacity Index ◽  
Resource Environment

Rapid social-economic development and the ever-increasing water pollutant discharge of Wuliangsuhai lake basin made the water quality deteriorated; the lake eutrophication intensified and heavily restricted the sustainable development of the watershed’s social economy. Wuliangsuhai lake basin was selected as the study area. By the use of system dynamics simulation model the water environment and social economy were connected, and three kinds of improved scenarios (resource-environment constrained type, social economy constrained type, coordinated development type) were proposed based on the inertial and planning schemes. Ten indexes of water environment carrying capacity, i.e. the GDP per capita, ratio of industrial output to GDP, et al., were selected, and fuzzy comprehensive evaluation method was used. Results showed that, the water environmental capacity utilization ratios of COD and TN in the resource-environment constrained scenario were 69.5% and 57.9% in 2020, respectively. And the water environment carrying capacity index increased from 0.19 in 2008 to 0.31 in 2020. Under the coordinated development scenario, the surplus environmental capacity of COD and TN were 1755.46t/a, 260.21t/a respectively, and the water environment carrying capacity index was up to 0.29 in 2020. The sustainable development plan was proposed and some feasible suggestions and strategies were put forward.

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