The Effect of Biomechanical Operations on Rangeland Vegetation (Case Study: Rangelands of Abarkooh, Yazd)
Subject Areas : rangland
1 - General Department of Natural Resources and Watershed Management of Yazd Province
Keywords: Rangeland Reclamation, Storage of Rainfall, crescent ponds, rangelands of Yazd province,
Abstract :
Execution of rainfall storage operationsis is one of the most important methods of improving and restoring rangeland vegetation. This study was conducted to investigate the effect of rainfall storage on vegetation factors in winter rangelands of Abarkooh, Yazd. The success of biomechanical operations was evaluated through the analysis of vegetation factors including canopy cover, production, regeneration, and density in four treatments: control, pitting, contour furrows, and crescent ponds. The sample was selected through random – systematical method of sampling with the establishment of transects and plots. One-way between groups ANOVA was run in order to analyze the data. The results showed that the studied factors had a significant difference at the statistical level of one percent (P <0.01). So that in the crescent ponds method Percentage of canopy, production, density and regeneration of plant species had the highest value with 8.5, 39.25, 6.6 and 3.9, respectively, in comparison with the other two methods. These factors did not show a significant difference with the control in contour furrows and Pitting methods. The results of this study showed that crescent ponds had a greater effect on restoration and increase of vegetation compared with contour furrows meter and pitting methods.
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