Water Science and Engineering 2015, 8(4) 263-272 DOI:   http://dx.doi.org/10.1016/j.wse.2015.09.001  ISSN: 1674-2370 CN: 32-1785/TV

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Keywords
Water resources
Temporal and spatial distribution characteristics
Cloud model
Guangdong Province
Authors
Qi Zhou
Wei Wang
Yong Pang
Zhi-yong Zhou
Hui-ping Luo
PubMed
Article by Qi Zhou
Article by Wei Wang
Article by Yong Pang
Article by Zhi-yong Zhou
Article by Hui-ping Luo

Temporal and spatial distribution characteristics of water resources in Guangdong Province based on a cloud model

Qi Zhoua,b,c, Wei Wangd, Yong Panga,b*, Zhi-yong Zhoue, Hui-ping Luoa

a Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, PR China
b College of Environment, Hohai University, Nanjing 210098, PR China
c College of Architecture Engineering, Tongling University, Tongling 244061, PR China
d College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, PR China
e Water Conservancy Bureau of Tongling City, Tongling 244000, PR China

Abstract

With a focus on the difficulty of quantitatively describing the degree of nonuniformity of temporal and spatial distributions of water resources, quantitative research was carried out on the temporal and spatial distribution characteristics of water resources in Guangdong Province from 1956 to 2000 based on a cloud model. The spatial variation of the temporal distribution characteristics and the temporal variation of the spatial distribution characteristics were both analyzed. In addition, the relationships between the numerical characteristics of the cloud model of temporal and spatial distributions of water resources and precipitation were also studied. The results show that, using a cloud model, it is possible to intuitively describe the temporal and spatial distribution characteristics of water resources in cloud images. Water resources in Guangdong Province and their temporal and spatial distribution characteristics are differentiated by their geographic locations. Downstream and coastal areas have a larger amount of water resources with greater uniformity and stronger stability in terms of temporal distribution. Regions with more precipitation possess larger amounts of water resources, and years with more precipitation show greater nonuniformity in the spatial distribution of water resources. The correlation between the nonuniformity of the temporal distribution and local precipitation is small, and no correlation is found between the stability of the nonuniformity of the temporal and spatial distributions of water resources and precipitation. The amount of water resources in Guangdong Province shows an increasing trend from 1956 to 2000, the nonuniformity of the spatial distribution of water resources declines, and the stability of the nonuniformity of the spatial distribution of water resources is enhanced.

Keywords Water resources   Temporal and spatial distribution characteristics   Cloud model   Guangdong Province  
Received 2015-02-28 Revised 2015-09-16 Online: 2015-10-31 
DOI: http://dx.doi.org/10.1016/j.wse.2015.09.001
Fund:

This work was supported by the National Science and Technology Major Project of Water Pollution Control and Treatment (Grants No. 2014ZX07405002, 2012ZX07506007, 2012ZX07506006, and 2012ZX07506002) and the Priority Academic Program Development of Jiangsu Higher Education Institutions.

Corresponding Authors: Yong Pang
Email: pangyonghhu@163.com
About author:

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