| Autor: |
Michael Ficco, Katarina Kosič Ficco, Tara D Helms, Evan Thaler, John Van Brahana |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
The Handbook of Environmental Chemistry ISBN: 9783319773674 |
| DOI: |
10.1007/978-3-319-77368-1_4 |
| Popis: |
Several vulnerability mapping methods have been reported in the literature to address the vulnerability of karst aquifers. Overall, these methods are not universally applicable due to site-specific characteristics of karst terrains. This is especially noticeable on mantled karst areas where properties of soil cover layers influence attenuation of contaminants based on their saturation and hydrological characteristics. Therefore, the use of a site-specific approach while implementing vulnerability mapping is critical. In this study, we performed vulnerability mapping in a study area characterized by mantled karst, located in the Big Creek basin, Arkansas, USA. This study demonstrated that the attenuation capacities of the soils and alternative cover layers can be influenced by hydrogeologic conditions and how the attenuation can be reduced by overstressing the soils with high nutrient content. Based on these findings, we present the advantages and disadvantages of adopting vulnerability mapping as a management and preservation method. Our results highlight the limitations of vulnerability mapping methods when applied to a different karst terrain than for which they were developed and the suitability of vulnerability mapping methods as a karst aquifer protective management tool. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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