A study on runoff generation and sediment production processes under jute geotextile buffers

Geotextiles has been used to conserve eroded hillslopes, decrease soil loss and prepare bed for plant growth over the course of past few decades. In this study we tried to investigate the effectiveness of geotextiles for reducing runoff and sediment yield from an experimental micro-catchment. Two micro-catchment (control & treatment) were selected then the jute geotextile was installed as a buffer along contour line against superficial flow. Then, each micro-catchment was equipped with a flume at its outlet to measure runoff rate during storm events. Other variables (i.e. vegetation cover, soil, surface scree and slope steepness) were monitored during study period. Results showed high runoff and sediment variations during measurement period, so that the maximum and minimum specific sediment yield were equal to 2.48 and 0.69 gr.m-2 for events 30-Jan-2015 and 29-March-2015, respectively. Also, compare mean test revealed significant differences in specific sediment yield between two micro-catchments (P