The improvement of Projection Pursuit Classification model and the application in evaluating water resources carrying capacity

2012 ◽  
Author(s):  
Zhao Xiaoyong ◽  
Cui Guangbai
Keyword(s):  
Water Resources ◽  
Carrying Capacity ◽  
Projection Pursuit ◽  
Classification Model ◽  
Water Resources Carrying Capacity

scholarly journals Study of an evaluation method for water resources carrying capacity based on the projection pursuit technique

2017 ◽  
Vol 17 (5) ◽  
pp. 1306-1315
Author(s):  
Hongbo Liu ◽  
Yunfeng Liu ◽  
Lingjun Li ◽  
Hongxia Gao
Keyword(s):  
Water Resources ◽  
Carrying Capacity ◽  
Evaluation System ◽  
Evaluation Method ◽  
Evaluation Criteria ◽  
Projection Pursuit ◽  
Development Planning ◽  
The Sustainable Development ◽  
Water Resources Carrying Capacity ◽  
Capacity Evaluation

It is of great significance to establish a scientific and reasonable water resources carrying capacity evaluation system and evaluation method on the basis of studying the interdependence and mutual relations of water resources, society, economy and the ecological environment. This can guide water resources utilization and economic and social development planning, and promote the sustainable development of water resources and the socio-economic system. Projection pursuit technology can achieve automatic index selection and index weight confirmation. When used to assess water resources carrying capacity, the subjectivity and uncertainty of index weights can be avoided. Meanwhile, it can also be used to optimize the index system, and can improve the accuracy of evaluation results and discrimination. In this paper, the projection pursuit grade model of water resources carrying capacity is established. The evaluation criteria are determined by combining the theory with practice. Grades I to IV indicate that the water resources capacity declines gradually. This is the first study of water resources carrying capacity in four municipalities in China. The results show that the water resources carrying capacity of the four municipalities in 2012 belong to the third level, Chongqing is close to the second level and Tianjin is close to the fourth level.

An Evaluation Method of Water Resources Carrying Capacity Based on Projection Pursuit Model

2013 ◽  
Vol 652-654 ◽  
pp. 1710-1716 ◽  
Author(s):  
Wei Wang ◽  
Yong Jun Feng ◽  
Wei Feng Chen ◽  
Fu Lin Li
Keyword(s):  
Water Resources ◽  
Carrying Capacity ◽  
Evaluation Method ◽  
Yellow River ◽  
Evaluation Model ◽  
Projection Pursuit ◽  
Yellow River Delta ◽  
River Delta ◽  
Swarm Optimization ◽  
Water Resources Carrying Capacity

It is very important that drawing up a reasonable developing and utilizing plan for water resources and ensuring the sustainable supply of water resources to the socioeconomic development of an area. So that, how to analyze and evaluate water resources carrying capacity is the key issue. In this paper, we proposed an evaluation method for water resources carrying capacity in Yellow River Delta based on projection pursuit evaluation model and particle swarm optimization. First, we regarded economy, social development, ecological environment and water resources as a compound system and established an index system including eighteen indices. Second, we chose the data in 2010 and evaluated water resources carrying capacity in Yellow River Delta utilizing projection pursuit evaluation model and particle swarm optimization. Finally, based on the evaluation above, we can draw a conclude for several areas in Yellow River Delta. The water resources carrying capacity of Dongying district and Kenli County is better and is at level II, and water resources are in week stress-free state. And that the one of Hekou district, Lijin County and Guangrao County is medium and level III, and the development of water resources and social economy is in coordination state.

The Study of Three Evaluation Models of Water Resources Carrying Capacity in Manas River Basin

2010 ◽  
Vol 113-116 ◽  
pp. 442-449 ◽  
Author(s):  
Guang Yang ◽  
Yue Jian Wang ◽  
Xin Lin He ◽  
Jun Feng Li
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Carrying Capacity ◽  
Comprehensive Evaluation ◽  
Projection Pursuit ◽  
Fuzzy Comprehensive Evaluation ◽  
Water Resources Carrying Capacity ◽  
Capacity Evaluation ◽  
Evaluation Models ◽  
Manas River Basin

Because lack of water resources in Manas river basin, the water resources carrying capacity evaluation is important to the water sustainable development. In this paper, we select the main factors of the water resources carrying capacity and separate into water resources subsystem, social subsystem, economic subsystem and ecological subsystem. Then established three evaluation models to evaluate the different years of water resources carrying capacity and made the application comparison. The fuzzy comprehensive evaluation model and matter-element models are adaptable to the water carrying capacity evaluation, but the determination of weights is too subjective; The projection pursuit theory is based on the sample characteristics of their own, and without given weight of each indicator, the results is more objective. The results show that the water resources carrying capacity in Manas River basin was at V1-stage in 2000; it is at V2- stage in 2010 and V3- stage in 2020, and then the water resources carrying capacity in Manas River basin is the ideal carrying capacity status. At the same time, because of saving water technological and industry restructure adjustment, water resources carrying capacity in Manas River Basin is on a benign trend. At last, some measures of improving the water resource carrying capacity were put forward.

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.

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