بررسي تاثير فاصله از منبع آب و توپوگرافي بر پوشش گياهي در مراتع گله بر

Survey effect of topography and distance of water source on plant covering in galehbore rangeland

For reaching the factors between the plant and physical factors in water source with different grazing areas. Galehbore mountain rangeland in Hamedan was chosen. Then 3 water sources were chosen for surveying since they had more importance from the aspect of the animal drinking and the sampling parts were defined around each water source, percentage of slope, geographic direction .height of sea level, percentage of wetness of soil, distance between water source and plants factors were calculated and finally the relation between mentioned factors in every water source were tasted step by step in another way of regression. In the end it was proven that the more distance from water source. The more effect of physical factors on plant covering factors. Slope, height and distance of water source had the most effect on the plant covering but the effect of the geographic direction was less than the other mentioned factors and the wetness of the soil did not have the remarkable effect on plant covering. Physical factors had the most important effect on the percentage of top covering. The condition of rangeland each 3water sources studied before was improved by increasing the distance from water sources.