Evaluation of the Balance of Water Resources in Multiple Spatial Scale Based on Lorenz Curves and Gini Coefficients

DOI

10.2991/gmee-15.2015.22How to use a DOI?

Keywords

three-dimensional climate; water resource; balance of space; Lorenz curves; Gini coefficients; downscaling

Abstract

Influenced by special topography and three-dimensional climate, the distribution of water resources in Yunnan Province is obviously different form other regions. According to the official reports of water resources, related evaluations and planning in Yunnan Province in 2012, the interaction cutting relation between administrative regions and water resource divisions was studied with geography spatial analysis method, and the areas of cutting units were calculated, by which the water resources of per capita in city, county, township level administrative regions were figured out. The Lorenz curves and Gini coefficients, which were used to describe the differential allocation of revenue in economics qualitatively and quantitatively, were introduced to study the spatial balancein different spatial scales. Gini coefficients were 0.53, 0.64 and 0.69 respectively. Results show that in the processe of downscaling, the spatial distribution of water resources in Yunnan Province is increasingly unbalanced: water resource in northwest and southwest is relatively abundant, water resources of city group, which located in central Yunnan including dry-hot valley, are relatively short, and per capita water resources are star flashed on small scale distribution, which poses a challenge to security of water resource especially when Yunnan suffers a drought.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Haizhen Liu
AU  - Xuefeng Sang
AU  - Ziqi Yan
AU  - Zuhao Zhou
AU  - Jianguang Su
AU  - Gang Chen
PY  - 2015/12
DA  - 2015/12
TI  - Evaluation of the Balance of Water Resources in Multiple Spatial Scale Based on Lorenz Curves and Gini Coefficients
BT  - Proceedings of the 2nd International Conference on Green Materials and Environmental Engineering
PB  - Atlantis Press
SP  - 78
EP  - 81
SN  - 2352-5401
UR  - https://doi.org/10.2991/gmee-15.2015.22
DO  - 10.2991/gmee-15.2015.22
ID  - Liu2015/12
ER  -