Volume 13, Issue 2 (7-2019)
مرتع 2019, 13(2): 337-349 |
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Fattahi B, Aghabeigi S, Ghorbanpoor M, Maleki M. Ecological factors on habitat of Acantholimon oliganthum in mountainous rangelands in Hamedan Province. مرتع 2019; 13 (2) :337-349
URL: http://rangelandsrm.ir/article-1-754-en.html
URL: http://rangelandsrm.ir/article-1-754-en.html
Depatrment of Watershed and Rangeland, Faculty of natural resources and environment, Malayer University, Malayer
Abstract: (3709 Views)
One of the most important issues in managing rangelands is providing comprehensive information on plant species and their habitat needs. The purpose of this study was to identify the most influential ecological factors on A. oliganthum growth on high elevated rangelands of Hamadan province. The study conducted in spring and summer of 2017. For data collection three levels of elevation (2300-2100, 2500-2300 and 2500 meters up), three slope classes (30-20%, 50-30% and> 50) and four main slope directions (north, east, south and west) were identified. At each level, the abovementioned factors were identified (sampling site) and measured. Land mapping units were plotted as a result of map overly. Within the land mapping units three soil profiles were randomly stablished with the depth of 30 cm (effective depth of soil on the plant). For each profile a mixed soil sample was collected and analyzed in the lab. As results showed all three factors, altitude, slop angle and slope aspect, had a significant effect on the soil coverage percentage and density of the species (p<0.01). The interaction of all three factors are less but significant (p<0.05). Based on the results of PCA analysis, A. oliganthum has direct correlation with slope aspect, altitude, depth of gravel, sand, potassium and limestone; it could be said that the above factors have the greatest effect on the coverage and density of this species.
Type of Study: Research |
Subject:
Special
Received: 2019/07/9 | Accepted: 2019/07/9 | Published: 2019/07/9
Received: 2019/07/9 | Accepted: 2019/07/9 | Published: 2019/07/9
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