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| Titel: |
Irrigation-Induced Infiltration and Recharge: Implication for Groundwater Quality |
| Auteur: |
Moshood N. Tijani Ally A. Agakwu |
| Verschenen in: |
Journal of environmental science and technology |
| Paginering: | Jaargang 1 (2008) nr. 2 pagina's 65-72 |
| Jaar: |
2008 |
| Inhoud: |
This study focuses on the quality impact assessment of irrigation-induced infiltration and recharge under amended agricultural fields on shallow groundwater systems using experimental pilot green-house set-up. The results show that irrigation leachate analyses under Waste-Dump Soils (WDS), Organomineral and NPK-amended soil substrates planted with a common edible vegetable crop (<i>Amarantus </i>species) exhibited 1.6 to 52.4 fold enrichment of Cu, Zn, Co and Ni under both Waste Water Irrigation (WWI) and Fresh Water Irrigation (FWI). However, the observed depletion of Pb, Cd and Cr can be attributed to possible uptake by the vegetable crop and enrichment in the residual soil as reflected by the estimated Enrichment Factor (EF) of >of 2.1-9.2 for organominerals-amended soils and EF of 6.4-8.9 for waste dump soils under both WWI and FWI. Furthermore, the observed enrichment in the residual soils imply potential sources of trace metal contaminations through leaching, long after harvest, with attendant negative impacts on the shallow groundwater quality. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 4 van 7 gevonden artikelen
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