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Paper Information

Journal:   IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH   2016 , Volume 22 , Number 4 ; Page(s) 821 To 829.

Effects of long-term exclosure on soil in rangeland ecosystem using the LFA method Case study: Saral rangelands of Kurdistan province

Author(s):  JAVADI S.A.*, Khatibi Baneh s., ARZANI H., SAEDI K.
* Department of Range Management, Faculty of Agriculture and Natural Resources, Islamic Azad University, Science and Research Branch of Tehran, Iran
This research was aimed to investigate the soil function indices in an exclosure region in comparison with non-exclosure. Then, using random plots as a control method, vegetation cover, stones and gravel, and litter were measured. Our results showed that the exclosure region (Saral Research Station) had better condition in terms of function indices in comparison with non-exclosure regions, indicating the positive impact of no livestock grazing for a long time. Northern slope of the exclosure region and the southern slope of non-exclosure region were identified as the most stable (60. 26) and unstable (52. 8) in the study area. The highest infiltration was recorded for the southern slope of the exclosure region (58. 7), and the northern slope of the exclosure region had the highest nutrient cycling (45. 63). The western slope of the exclosure region represented the longest inter patch in the whole landscape and the northern slope of exclosure had the largest area and number of ecological patches. Considering the area and number of patches helps the range manager detect the effect of exterior and interior factors on rangeland easier. Overall, long-term exclosure in the Saral region could be mentioned as a suitable method to reduce the runoff, soil erosion, and sediment production.
Keyword(s): LFA,exclosure,function indices
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