The water pond is one of water storage structures in the Mazandaran province. In fact, water pond is an earthen storage pool and very large, that by using rake up and excavation of a range and pouring and banging and creating of wall in this area achieved. Surplus surfa
چکیده کامل
The water pond is one of water storage structures in the Mazandaran province. In fact, water pond is an earthen storage pool and very large, that by using rake up and excavation of a range and pouring and banging and creating of wall in this area achieved. Surplus surface waters were stored in these ponds during non-agricultural seasons and used in growing seasons. Since most of the water ponds have a long history and were constructed with basic equipment, they have little depth and the walls have not sufficient strength. The heavy rain may destroy walls and cause damages. Besides, the amount of water loss through leakage is high. With the arrival of sediments, water storage volume in the ponds decreased. Considering the foregoing, the water ponds need to dredging, increasing the depth of the reservoir, consolidation of wall. In this study, seven water ponds in the mazandaran province were considered and the impact of their improvements on increasing the water storage volume and control of surface water were evaluated. The results showed that after rehabilitation, storage volume of Water Ponds 19.35 Mm3 increases, this means that for every hectare of water pond after rehabilitations storage volume on average 28043 m3 increases. that this increase of storage volume for every hectare of water pond is equivalent to 185/7 percent.
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