尼日利亚东南部恩永河下游盆地形态计量学分析它对应用研究的影响

C. Udosen, O. Udoidiong, A. S. Etok, M. U. Okoroji
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引用次数: 0

摘要

流域分析在任何水文调查中都很重要,例如水文过程研究、湿地管理、洪水、侵蚀和滑坡易感性研究、地下水潜力评估和地下水管理。同时也验证了现有的理论和模型,如排水组成规律。鉴于上述情况,本文描述了恩永河下游的排水特征,这是由不同的地质构造所决定的。即;阿苏河组,如阿巴基利基背斜到南部近代冲积层,对研究区两个四级次集水区进行了详细的基于地图的定量分析。水系以枝晶型为主。流域排水密度值较低,表明流域底土透水性强,植被覆盖较厚。伸长率值反映了盆地受非均质地质物质的强烈拉伸和抽流过程的制约。该研究将有助于当地人民利用资源,实现流域地区的可持续发展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Morphometric analysis of lower Enyong creek basin in South Eastern Nigeria; its implications for applied studies
The drainage basin analysis is important in any hydrological investigation such as study of hydrologic processes, management of wetlands, flood, erosion and landslides susceptibility studies, assessment of groundwater potential and groundwater management. Also, existing theories and models such as the laws of drainage composition can be verified. In the light of the foregoing, the present paper describes the drainage characteristics of the lower Enyong Creek, which is underlain by varying geologic formations. viz; Asu River Formations e.g the Abakiliki Anticlinorium to the recent alluvium in the south It involved detailed map-based quantitative analyses of two 4th order sub-catchments in the study area. The drainage pattern is mainly dendritic type. It is observed that the drainage density value is low which indicates the basin is highly permeable subsoil and thick vegetative cover. The elongation ratio value reveals that the basin is strongly elongated and stream abstraction process constrained by heterogeneous geologic materials. This study would help the local people to utilize the resources for sustainable development of the basin area.
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