Impact of climatic factors on forage production in Ali Abad Rangeland, Iran
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2014, Vol 4, Issue 2
Abstract
The responses of four steppe forage species in the Ali Abad rangeland to precipitation timing were assessed for a period of 9 years (2004 to2012). Regression analysis was used to examine the relationship between annual production and different climatic factors. According to the results, rainfall of past year in addition to rainfall of growing season has the greatest impact on forage production in site of Ali Abad. Annual production of Artemisia aucheri, Astragallus myriacanthus, Artemisia siberi were most closely correlated with previous rainfall, respectively (r^2 = 0.78, 0.78, 0.81), and Stipa barbata with growing season rainfall (r^2 = 0.79). This study supported the use of precipitation pattern instead of the other climatic factors in effectively estimating herbage production through a statistical model.
Authors and Affiliations
Elham Fakhimi, Hossein Arzani, Seyed Akbar Javadi, Mohammad Jafari
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