Document Type : پژوهشی
Author
Graduated Ph.D. Watershed Management, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
Abstract
In this research, Modeling the effects of management Actions to improve the status of water and soil resources of Tuyserkan watershed in mDSS software environment have been studied.For this purpose, first, the status of the watershed system was analyzed through the DPSIR approach.In order to predict the effects of each management activity from the indicators obtained from Four physical, social, economic and ecological criteria were used.Finally, in order to prioritize the proposed management activities, TOPSISand SAWtechniques have been used in the mDSS software environment.According to the results of the DPSIR approach, the most important pressures affecting the system Land use change,Capture and vegetation loss have been introduced.Also one of the most important effects on the status of the watershed system is the criteria for vegetation loss, reduced groundwater recharge and increased risk of flood damage.Finally, according to the results of the DPSIR approach, to improve the status of water and soil resources A set of solutions for biological rangeland improvement and biomechanical operations to store rainfall in the basin was proposed.According to the opinions of experts and environmental conditions of the region from a set of solutions for biological improvement of rangeland and biomechanical operations Seven management activities(Rangeland exclusion,Afforestation,Orchard development,Forage cultivation,Contour furrow,Pile seeding and Seeding)were selected to store rainfall.According to the results obtained from the prioritization of management activities in all proposed methods,Afforestation activity has the highest score and is in the initial priority and the activity of Contour furrow has the lowest score and Is in the final priority.
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