Ardak Watershed with an area of about 497 km<sup>2</sup> is one of the tributaries of Kashaf Rud River Watershed in north east Iran,which consists of two main rivers.This catchment is located in the Kopet-...Ardak Watershed with an area of about 497 km<sup>2</sup> is one of the tributaries of Kashaf Rud River Watershed in north east Iran,which consists of two main rivers.This catchment is located in the Kopet-Dagh structural zone and Ardak Watershed is surrounded by Chaman Bid, Mozduran,Shurijeh,Tirgan,and Sarcheshme Formations.The lithofacies and architectural elements show that two main rivers are gravel-bed braided river in their most parts.The major erosion types in this watershed are rock fall,rill,surface erosions,and gully and channel bank erosion.In the study area,the amount of sediment yield estimation in GIS framework using MPSIAC model is about 130.749 m<sup>3</sup>·km<sup>-2</sup>·a<sup>-1</sup>or 1.77 t·h（-1）and most parts of the basin（more than 90%）has low erosional rate.Mozduran and Tirgan Formations展开更多
文摘Ardak Watershed with an area of about 497 km<sup>2</sup> is one of the tributaries of Kashaf Rud River Watershed in north east Iran,which consists of two main rivers.This catchment is located in the Kopet-Dagh structural zone and Ardak Watershed is surrounded by Chaman Bid, Mozduran,Shurijeh,Tirgan,and Sarcheshme Formations.The lithofacies and architectural elements show that two main rivers are gravel-bed braided river in their most parts.The major erosion types in this watershed are rock fall,rill,surface erosions,and gully and channel bank erosion.In the study area,the amount of sediment yield estimation in GIS framework using MPSIAC model is about 130.749 m<sup>3</sup>·km<sup>-2</sup>·a<sup>-1</sup>or 1.77 t·h（-1）and most parts of the basin（more than 90%）has low erosional rate.Mozduran and Tirgan Formations
