environmentally sound water resources management in catchment level using dpsir model and scenario analysis
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abstract
maharlou-bakhtegan catchment in the southern part of iran is faced with water scarcity.this problem is exacerbated by environmental degradation, climate change effects, mismanagementof water resources, along with a major dependence of water demand supplies on the limitedgroundwater resources. in this study, a combined approach of dpsir model along with the scenarioanalysis was employed to derive the optimal management strategies for the environmentally soundwater resources management of maharlou-bakhtegan catchment considering the conjunctive useof surface and groundwater resources. cause-effect relationships were identified by dpsir frameworkand 15 scenarios were developed based on them. for evaluating each scenario, 9 integrated waterresources management indicators were introduced and evaluated by modsim.the resultsdemonstrated that in scenario scen-14, restriction for the irrigation area development, as well asother management solutions, which led to 100% supply of domestic and industrial water demandsand 91% supply of agricultural water demands. also in the last scenario the value 1.79 kg/ m3 wasreceived by the agricultural water productivity indicators. moreover, by satisfying all iwrmindicators as well as enhancing zero for negative water balance of the aquifers in scen-14, it is clearlyindicated that this scenario revealed more efficient management solutions for the environmentallysound water resources management of the catchment.
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Journal title:
international journal of environmental researchPublisher: university of tehran
ISSN 1735-6865
volume 7
issue 3 2013
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