The Effect on Wind Erosion of Alternative Soil Tillage Applications
Wind erosion is an important environmental problem in our country, especially in arid and semi-arid regions. Today, reduced tillage practices are often considered as effective in reducing erosion. In this study, the effects on the wind erosion of 5 different soil tillage applications were examined. Trials were conducted in a wind tunnel. The studies were done at 4 different wind speeds (4, 7, 10 and 13 ms-1). At low wind speeds (4 and 7 ms-1) could not be achieved sediment attitude. After tillage, stubble amount and cover ratio, surface roughness, mean weighted diameter, stability index values were measured as well and varied from 42.67 to 128 gm-2 and 1.27 to 19.32 %, 4.56 to 24.23 %, 6.53 to 13.57 mm and 2.24 to 3.41, respectively. At 13 ms-1, sediment transport rates varied from 72 to 1365 gm-2h-1 as depending on different soil tillage. The results showed that the relationships between erosion amount and stubble cover ratio, mean weighted diameter and stability index were found significantly and regression coefficient of relation were R2=0.93, R2=0.95 and R2=0.97 respectively.
Wind erosion, soil weight mean diameter, stability index, stubble