Effectability of Generated Runoff and Sediment from Different Levels of Colza Straw at Small Laboratory Plots

Imbalance soil erosion is one of the dangers that threatens the availability of natural resources to communities by the high amount of runoff and sediment production. To control the effect of soil erosion, the application of the governing principles on the use of organic and inorganic soil stabilizers can be considered as an effective manner. The purpose of this study was to investigate the effect of different amounts of Colza straw on runoff and sediment of loamy-sandy soils in the laboratory conditions. For this purpose, rainfall of 50 mm h-1 with duration of 10 min on plots with scale of 0.5 m2 in the three replications, with coverage values of 25 and 50% protection of Colza straw from industrial fields of Dasht-e- Naz Sari City is harvested and was simulated using rainfall simulator of Faculty of Natural Resources, University of Agricultural Sciences and Natural Resources of Sari. The coverage values of 25 and 50 % of Colza straw provided from industrial fields of Dasht-e- Naz, Sari city was used for the present study. The results showed that the application of both levels of Colza straw had a significant effect (p