The effect of grazing rate and slope on runoff and soil loss

• Published in: Pajouhesh And Sazandegi Vol. 17; no. 1
• Main Authors: Rahmati, M., Soil Conservation and Watershed Management Research Center, Arabkhedri, M., Soil Conservation and Watershed Management Research Center, Jafari Ardekani, A., Soil Conservation and Watershed Management Research Center, Khalkhali, S. A., Soil Conservation and Watershed Management Research Center
• Format: Journal Article
• Language: Persian
• Published: 2004
• Subjects: BETAIL; CAMPO; CHAMP; ENZIMAS; ENZYME; Equilibrium grazing; EROSION HYDRIQUE; Erosion plots; EROSION POR EL AGUA; ESCORRENTIA; ETAPAS DE DESARROLLO; FAGUS; FIELDS; Firuzkooh; GANADO; GRAZING; GRAZING INTENSITY; GRAZING SYSTEMS; INTENSIDAD DE PASTOREO; INTENSITE DE PATURAGE; IRAN ISLAMIC REPUBLIC; IRAN REPUBLICA ISLAMICA; IRAN REPUBLIQUE ISLAMIQUE; LIVESTOCK; livestock management; OVERGRAZING; PASTOREO; PATURAGE; PEROXIDASAS; PEROXYDASE; RUISSELLEMENT; RUNOFF; SISTEMAS DE PASTOREO; Slope; SLOPING LAND; SOBREPASTOREO; Soil Loss; STADE DE DEVELOPPEMENT; SURPATURAGE; SYSTEME DE PATURAGE; TERRE EN PENTE; TERRENO EN DECLIVE; WATER EROSION
• ISSN: 1019-9632

The total rangeland area and number of livestock are reported millions hectare and 133 million stock-units respectively. Responsible organizations and experts believe that overgrazing is the most important factor on range degradation. Range degradation, has several negative impacts like lose of water and soil resources, flooding and sedimentation. For determining the impact of overgrazing in different slops we executed a research in Firuzkooh, which is, an important livestock-husbandry region of Iran. For this purpose 18 plots of 2x10 meter, have been constructed on 10, 20 and 30 percent slopes with equilibrium and over grazing treatments with three repetitions in randomized blocks design. Runoff and soil loss of 6 periods in 2 years were measured. Results represented that the maximum and minimum soil losses were related to overgrazing on 30 % and equilibrium grazing on 20 % slopes respectively. Analyzing the variance showed that the slope and grazing treatments had significant effect on runoff and soil loss in long time. Keyword:Overgrazing; Equilibrium grazing; Slope; Erosion plots; Runoff; Soil Loss; livestock management; Firuzkooh