Evaluation of Windy and Splash Erosional Ability for Khanaqeen RegionKhanaqeen Region(Study in Geomorphological Operations)

Abstract

The study region lies astronomically between latitude (34˚,12′ - 34˚,26′,30″) north and longitude (45˚,10′,3″ - 45˚,35′,5″) east. The area of this region is 636 Km2. It is in the north eastern part of Iraq within Diyala governorate in Kurdistan region. It's bounded on east by Iran and on west by Sirwan River and on south, study region begins with water stream isolates valleys directing toward Alwand River and valleys directing toward Diyala River represented by Chwarbakh, Kouy Derkhan, and Dara Wishka mountains.The same is at the north. It starts with the lower valleys that drain in Alwand, whereas Jalawlaa lies at the western part of study region.Through the study and analyzing of windy and splash erosion in Khanaqeen region, it became clear that splash erosion is one of the most important geomorphologic processes common in the region and it has more effect on soil erosion than windy erosion. It seemed that splash erosion is (1716 m3/km3/year) according to Douglas equation guide and the capacity of rain erosion according to Bergsmo equation is (1738,99), it is high erosion. Whereas the windy erosion seemed (58.8) according to Chepil equation and it is clear from the value that it is characterized with medium erosion according to the limits prepared by Chepil. Furthermore, the study came up with climatic elements are the crucial factors in making the erosion in Khanaqeen on of the factors that makes that phenomenon and through that, the erosion capacity can be determined in the region.