Aquifer porosity in the Pan-African semi-arid context
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- 作者：Zakari Arétouyap ; Njandjock Nouck Philippe ; Robert Nouayou…
- 关键词：Porosity ; Groundwater ; Arid regions ; VES ; Archie’s law ; Pan ; African
- 刊名：Environmental Earth Sciences
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：76
- 期：3
- 全文大小：
- 刊物类别：Earth and Environmental Science
- 刊物主题：Geology; Hydrology/Water Resources; Geochemistry; Environmental Science and Engineering; Terrestrial Pollution; Biogeosciences;
- 出版者：Springer Berlin Heidelberg
- ISSN：1866-6299
- 卷排序：76
文摘
Water scarcity is one of the major concerns that people are facing worldwide. Although the liquid is absolutely abundant through the globe, its availability poses too much problems specifically to each region. Those problems can result in one or a combination of three basic situations: declining water (drought), overabundance of surface water (floods) or degradation of the quality of water (pollution). All these situations are reflected in the scarcity of good quality water. Arid regions are particularly concerned. In such areas where groundwater contained in aquifers is usually perceived as providence, any project of groundwater exploration and exploitation must be preceded by prior careful and meticulous investigation, in order to avoid early and premature drying. This investigation is likely to predict the future behaviour of aquifers and to improve the groundwater resources management. Beside fundamental properties as hydraulic conductivity, the present paper that addresses the water sector in the semi-arid region of northern Cameroon emphasizes the importance of porosity on aquifer productivity and consequently on the groundwater resources management. The porosity of the local aquifer has then been determined using the Waxman and Smits model which establishes a reliable relationship between the apparent and corrected formation factors, Fa and Fc, taking the clay effects into consideration. This approach can be applied in other similar semi-arid regions through the world.