Selection of most appropriate area to establish soil damp for the purpose of sustainable development of water resources using TOPSIS and ELECTRE methods ( A case study: Zarand-Saveh watershed)

Abstract

Nowadays shortage and decrease in fresh water is approximately under increased all over the world Based on the statistics published by FAO Food and Agriculture organization need for fresh water has almost become double per 21 years while useful water resources have been reduced by half in relation to 30 years ago It seems that useful water resources will become one fourth up to 2025 than useful water resources in 1960 Meanwhile danger of various pollutions for water resources frequently increased the value and importance of them Due to mentioned cases if water resources aren t managed in better way the life of human being will be threatened by the shortage of water Thus it is necessary to acquire the exact and up to date information about the condition of water resources and prediction of their situation in future in order to achieve optimum management for water resource