THE IMPACT OF CLIMATE VARIABILITY ON CLIMATE FACTOR (WIND EROSIVITY) IN WIND EROSION EQUATION IN DIFFERENT REGIONS OF IRAQ | ||
| Jornal of Al-Muthanna for Agricultural Sciences | ||
| Article 1, Volume 4, Issue 1, August 2016, Pages 1-21 | ||
| Abstract | ||
| Abstract This study aimed to identify the direction of rainfall amount changes for selected regions north and south of Iraq (Mosul, Kirkuk, Samawa) for 31 years period during (1983-2013) and the impact of the wind erosivity climatic factor (C) and see the effect of wind speed to get to the most influential factor in the wind erosivity on. The results showed that the amount of rainfall decreased in Mosul and Kirkuk by an average of 300.78 and 284.08 mm, respectively, while increased in Samawa by an average of 105.27 mm, also drought coefficient (actual value of Precipitation) directed to decrease in the undulating region (Mosul and Kirkuk) to reach 17.88 and 18.17 degrees within a very dry desert climate foreshadowing to the sovereignty of the scope of desertification conditions in these regions. While drought coefficient remained in the southern (Samawah) within the limits of 6-7 very dry climate and desert plant life. This climatic change has increased the values of wind erosivity climatic factor in the regions of Mosul and Kirkuk, but it is still weak an average of 3.72 and 11.18 degrees respectively. While wind erosivity in Samawa reached very high level values by 177 degrees. Results yielded in the inverse relationship between the average annual rainfall and drought coefficient with the wind erosivity and direct relationship between wind speed and wind erosivity in all regions. The results showed an approximate impact for rain, coefficient of drought and wind speed in the wind erosivity in of Mosul and Kirkuk regions. Wile wind speed was most factor influencing in the wind erosivity in Samawa (driest region) due to increased wind speed rates. | ||
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