Evaluation of water resources system vulnerability based on co-operative co-evolutionary genetic algorithm and projection pursuit model under the DPSIR framework

3rd International Conference on Water Resource and Environment

地球科学;生态环境科学

Zhao, Y.^1 ; Su, X.H.^1 ; Wang, M.H.^2 ; Li, Z.Y.^1 ; Li, E.K.^1 ; Xu, X.^3

Yellow River Institute of Hydraulic Research, China^1

Water Resources Management and Regulation Bureau, YRCC, China^2

Liaocheng Water Conservancy Bureau, China^3

关键词: Evaluation index system;    Projection pursuit models;    Socio-economic development;    Sustainable utilization;    System vulnerability;    Vulnerability degree;    Water resources systems;    Water resources utilizations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/82/1/012049/pdf
DOI  :  10.1088/1755-1315/82/1/012049

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Water resources vulnerability control management is essential because it is related to the benign evolution of socio-economic, environmental and water resources system. Research on water resources system vulnerability is helpful to realization of water resources sustainable utilization. In this study, the DPSIR framework of driving forces-pressure-state-impact-response was adopted to construct the evaluation index system of water resources system vulnerability. Then the co-evolutionary genetic algorithm and projection pursuit were used to establish evaluation model of water resources system vulnerability. Tengzhou City in Shandong Province was selected as a study area. The system vulnerability was analyzed in terms of driving forces, pressure, state, impact and response on the basis of the projection value calculated by the model. The results show that the five components all belong to vulnerability Grade II, the vulnerability degree of impact and state were higher than other components due to the fierce imbalance in supply-demand and the unsatisfied condition of water resources utilization. It is indicated that the influence of high speed socio-economic development and the overuse of the pesticides have already disturbed the benign development of water environment to some extents. While the indexes in response represented lower vulnerability degree than the other components. The results of the evaluation model are coincident with the status of water resources system in the study area, which indicates that the model is feasible and effective.