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Sustainability 2015, 7(2), 1558-1575; doi:10.3390/su7021558

Optimal Water Resources Allocation under the Constraint of Land Use in the Heihe River Basin of China

1,* , 1,†
,
2,†
and
1,†
1
School of Public Administration, China University of Geosciences, 388 Lumo Road, Wuhan 430074, China
2
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Beijing 100101, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Ram Babu Singh
Received: 28 October 2014 / Revised: 31 December 2014 / Accepted: 27 January 2015 / Published: 2 February 2015
View Full-Text   |   Download PDF [1031 KB, uploaded 24 February 2015]   |  

Abstract

In recent years, water scarcity and irrational utilization have become the pivotal issues for the sustainable development of river basins in China. This paper attempts to propose a new perspective for the optimization of water resources allocation in a typical river basin. In order to conduct an accurate and feasible program for water resources allocation in the water-deficient river basin, a multi-objective and multi-constraint programming model was developed by embedding land use effect as a constraint on water allocation, which was currently solely decided by water resources demand in different water use sectors. The program includes two layers, namely water allocation among different counties located in the middle reaches of the Heihe River Basin and among domestic, industrial, agricultural and ecological uses within one county. Empirical analysis shows that the structural change of land use has an important influence and restriction on the water resources allocation in the river basin. The least cultivated areas that ensure food security and the constraint of construction land quota have great impact on agricultural and industrial water allocation. Moreover, the quantitative change of ecological land greatly affects ecological water allocation. The results demonstrate that the optimal program calculated from land use embedded model can well predicate the actual situation of water allocation in the future. To ensure regional sustainable development, it is vital that reasonable water-saving measures in each water use sector and ecological protection policies be taken. View Full-Text
Keywords: water resources allocation; land use; sustainable water use; optimal allocation model; Heihe river basin water resources allocation; land use; sustainable water use; optimal allocation model; Heihe river basin
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wang, Z.; Yang, J.; Deng, X.; Lan, X. Optimal Water Resources Allocation under the Constraint of Land Use in the Heihe River Basin of China. Sustainability 2015, 7, 1558-1575.

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