Sediment Yield and Sand Erosion Model through Arc SWAT and SPSS-14 Software for Sand Mine Site in Rajasthan

Abstract

Sand mining activities are considered as a profitable venture in present scenario of development, but these activities can cause a great trouble to environment. There are many factors which affects sand erosion of particular area. The main purpose of the study is to establish a mathematical model for sand mining site of the study area to identify the factors affecting the sediment yield and erosion of the sand at mining site. Kosana Sand mining site on Mithri tributary at Luni River near Pipar tehsil in Jodhpur, Rajasthan was selected. Sediment yield is workout based on the observations and calculations of ArcSWAT model. A mathematical model of study area is developed by using SPSS-14 software. Data of surface runoff, sediment yield and erosion are used to formulate a mathematical model. It is found that both erosion and sediment yield are related to surface runoff with cubic equation with value of coefficient of determination (R2 ) 0.944. The sediment yield at drainage location depends on the surface runoff of the watershed.