User:Nirmalkbcaos

Cover management factor in RUSLE model (C-factor) What is C-factor? C-factor is cover management factor. It is used in empirical model RUSLE to calculate the soil erosion. C-factor is management of surface cover types which control the soil erosion due the geomorphic factor as water and wind etc. The value of C-factor ranges from 0 to 1 which depend on the land surface cover types like built-up area, forest area or other like barren land and wetland. As usual it is clear that the wind induced erosion in possible in the area where soil surface is relatively drier so that wind can left them to long. The wind induced erosion also depend on the strength of wind including the soil surface condition and therefore the c-factor value for these region like barren land and fallow land is near to 1. Similarly soil erosion due to rainfall is high in the area where there is spare vegetation cover or less vegetation cover and for these C-factor value will be near to 1 while in case of deciduous forest c-factor is close to 0 because in the dense forest region the rainfall intensity becomes quite low due to their higher canopy range. The rainfall water that fall on soil surface will do very little erosion due to dense forest. C-factor value varies for different land use classes as for water, wetland and urban the value of c-factor is 0. The value of c-factor for crop land is 0.63 whereas for forest it is 0.003. Therefore it is widely understand that c-factor is most influencing factor to determine the soil loss using the RUSLE model. The RUSEL estimate the soil loss in ton/ha/year using the C-factor as

A=R*K*LS*C*P Where A is mean annual soil loss R is rainfall erosivity factor, K is soil erodibility factor, LS is slope length and steepness factor, C is cover management factor and P is conservation practice factor. reflect by its name that it is soothing like the management of cover types.