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الرئيسية > An Assessment of Suspended Sed...>الوصف

An Assessment of Suspended Sediment Decrease in Metropolitan River Ginzo Due To Urbanization Process In Katsina City, Nigeria

المصدر: مجلة الدراسات الافريقية
الناشر: جامعة القاهرة - معهد البحوث والدراسات الافريقية
المؤلف الرئيسي: Hamisu, Ibrahim (Author)
المجلد/العدد: ع35
محكمة: نعم
الدولة: مصر
التاريخ الميلادي: 2013
الصفحات: 21 - 36
ISSN: 6018-1110
رقم MD: 802480
نوع المحتوى: بحوث ومقالات
قواعد المعلومات: EcoLink, HumanIndex
مواضيع:
كاتسينا، نيجيريا | التنمية العمرانية | نهر جينزو
رابط المحتوى:

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المستخلص: This paper studied the influence of urban development and its accompanied land surface transformation on sediment concentration of a natural flowing Ginzo River across the city of Katsina. An opposite twin river known as Tille River, which flows outskirt, was used to compare the result of the sediment concentration of the Ginzo River in order to ascertain the anthropogenic consequences of the urban area on impacting the sediment concentration. An instrument called USP 61 point integrating cable way sampler described by Gregory and Walling (1976), was used to collect the suspended sediment samples in the wet season months of June, July, August and September. The result obtained shows that data collected along the study river at the city centre are significantly different from the result of Tille River. The disparity ranges from 35% to 45%” having Ginzo River yielding the lesser result. In the general assessment of the difference, the statistical student t-test applied to the sets of data revealed that the suspended sediment concentration obtained in urbanized river Ginzo is significantly different from that of the less urbanized Tille River. The study further discovered that the less sediment concentration realized in the urbanized catchment is attributed to concretization of surfaces, tarred roads, reserved Open grassland areas and concretized channeling of segments of the river including the river bed all within the catchment. The study therefore, concludes that urbanization affects not only the hydrology of an urbanized watershed but also the sediment concentration which is a significant aspect of its geomorphology. This will certainly affect the characteristics of the flood plains downstream areas. It is then recommended that further studies on urbanized watersheds should encompass all elements of geomorphology as it has been focused on hydrology. The Authorities concerned should trigger a proper environmental and land use management policies in order to arrest the menace of urban flood, erosion, land degradation and all related episodic events.
ISSN: 6018-1110

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