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الخصائص المورفومترية لحوض وادي افي سركه في محافظة دهوك == Morphometric Characteristics For Afi Sarka Valley Basin In Duhok City
Author name:
مروة علي طاهر
Supervisor name:
اسامة خزعل عبد الرضا الشريفي
General topic:
Geography
Specific topic:
Natural Geography
Degree:
Master
University:
University of Baghdad - Ibn Rushd College Of Education For Human Sciences
Language:
Arabic
University location:
Baghdad
First pages:
10T1569 - p.pdf
Abstract:
يقع مجرى افي سركه ضمن منطقة اقدام الجبال(سلسلة جبال كاره وسلسلة جبال متين) وتجري مياهه محكومة بطيه مقعرة( طية عمادية - خابور) ذات امتداد من الشرق الى الغرب حتى تصل مياهه الى نهر الخابور.يتكون حوض افي سركه من13 حوضا ثانويا يمثل الحوض الشمالي (7)احواض والج | Afi Sarka Stream lies within mountains feet region ( Kara Mountains Series and Mateen Mountains Series) , its water governed by concave herewith ( Emadya - Khabor herewith) with extend from east to west till its water reach to Khabor River. Afi Sarka river basin consists of 13 secondary basin, northern basin represents 7 basins , southern 6 basins , and 100% of northern basins waters come from fountainheads and 70% of southern basins waters come from fountainheads also and these waters suitable for various human uses. Region of study comprises variety in the appeared rock contains that waters flow in the secondary basins , and main stream for Afi Sarka related to eras of ( Kretasi, Balyoucin, Ayocin, Meyocin, Blayocin, and quarrel era Blaisqucin and Holocin), most these forms are from sand stone , limestone stone and mud stone which are insoluble rocks in ordinary circumstances , therefore they are not contributed in changing water quality specifications. Form of region consists of three convex herewith from them are Mateen Series and represent northern secondary basins field and Kara Series and represent southern secondary basins field as well as concave herewith mediate the two herewith and represent field of flow Afi Sarka River and both basins secondary northern and southern. Topographically ,region divided into three fields follow mile direction , first field includes main stream of Afi Sarka basin and extend to east study field and begin with Kantor line (900) m above sea surface level and end by Kintor line (700) fi Sarka basin northern western region study at Afi Sarka basin fountain in Khabor river , while second river is the northern basins field and begins from Kintor line (2000)m above sea surface level in far north region and directed to eastern northern - western southern and this field occupies this secondary basins of Afi Sarka basin and end by Kintor line (700) m above sear surface level, while third field is southern basins field in far southern region and directed to western southern - northern eastern and include the southern basins of Afi Sarka basin and begins from Kintor line ( 1800) m above sea surface level and end by Kintor line (800) m above sea surface level and these Kintor directions are main reason for formation all parts of Afi Sarka basin because they are responsible on surface flow direction within main stream borders and they are also the main factor that contributed in drawing forms of this basin with the flowing waters.Afi Sarka basin square is ( 318) km2 and morphometricaly , considers one of middle square basins , secondary basins square for Afi Sarka is ( 288) km2 and by applying morphometric equation appeared that Afi Sarka basin in its base circulation, while morphometric coefficient have been shown increasing value of basin form (36.98) and this value means sloping Afi Sarka basin from middle to sever slop and this also means middle activity for erosion and geomorphologic working in the basin. While value of bumpy basin was very low ( 0.088) and this means that basin is in the first stage of erosion circle. Geometric numbers values have been shown middle degree (3.219) indicated to erosion activity with middle sever, results of homsopheremetric coefficient explained erosion activity with middle sever , (70%) of basin parts appeared unaffected by erosion and reason here related to hardness of rocks and its severity for resistance processes of erosion. Length section standards of Afi Sarka basin also confirmed that it is still at the beginning of stage and work for most parts of basin
