The Minimum Rangeland Area Required For Pastoralism In Semnan Province
2007
Arzani, H., Professor Faculty of Natural Resources, University of Tehran, | Azarnivand, H., Assistant Professor, Faculty Natural Resources, University of Tehran, | Mehrabi, A.A., Associate Professor, Faculty of Natural Resources, University of Tehran, | Nikkhah, A., Professor, Faculty of Agriculture, University of Tehran | Fazel Dehkordi, L., Graduate Student, Faculty of Natural Resources, University of Tehran.
The area of rangelands and dependency of livestock to this resources leads to select a suitable property size which allows scientific range management based on relationship between human, rangeland and animal to achieve higher income and sustainable utilization. So the objective of the present study was determination of minimum property size for pastoralism`s family in Semnan province. Due to different grazing capacity based on ecological condition in each climate zone; various rangeland areas need to keep the same number of animal to cover living cost. In seven climatic zones of Semnan province living cost of a family with the average size of 5.4 person was 9644 thousand rials according to year 1999 economic condition. The net income of a herd with 100 sheep and for herd with 100 goats were 6288 and 4683 thousand rials respectively. So 800-1000 hectares rangeland is required to feed animal required for covering living cost of each family in arid areas. This will be 715 to 895 and 282 to 325 hectares in lowland and highland regions of dry desert areas, 370 to 465 and 571 to 715 hectares in highland and lowland of semi-arid areas, 247-310 hectares in Meditaration Zones , 255-316 hectares in semi-humid areas and 202 to 252 hectares in humid areas and 277 to 285 hectares in very humid areas for grazing period of 4 months.
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