Investigation of processes leading to nitrate enrichment in soils in the Kalahari Region, Botswana

Physics and Chemistry of the Earth

Volumn 30, Issue 11-16 SPEC. ISS., 2005, Pages 712-716

  Schwiede, M ^a   Duijnisveld, W H M ^b   Bottcher J ^a  

^a LEIBNIZ UNIVERSITY HANNOVER   (Germany)

^b FEDERAL INSTITUTE FOR GEOSCIENCES AND NATURAL RESOURCES BGR   (Germany)

Author keywords

Arenosol soils; Cattle; Chloride; Kalahari; Nitrate; Semi arid; Travel time

Indexed keywords

NITRATES; SOILS; VEGETATION; WATER QUALITY; WATER TREATMENT;

ARENOSOL SOILS; CATTLE; CHLORIDE; NITRATE CONCENTRATION; SEMI-ARID; TRAVEL TIME;

GROUNDWATER POLLUTION;

GROUNDWATER POLLUTION; NITRATE; WATER QUALITY;

AFRICA; BOTSWANA; EASTERN HEMISPHERE; KALAHARI DESERT; SOUTHERN AFRICA; SUB-SAHARAN AFRICA; WORLD;

ACACIA; BOS TAURUS; ISOPTERA;

EID: 27644507560     PISSN: 14747065     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.pce.2005.08.012     Document Type: Article

References (23)

1. Adams, S., Saayman, I.C., Beekman, H.E., Xu, Y., 2003. Designing a manual for recharge estimation in arid and semi-arid Southern Africa. A Report to START within the "Framework for Recharge Estimation in Southern Africa" project - Phase 1, University of the Wesstern Cape and CSIR Environment. Available from: http://www.start.org/project_pages/africa_groundwater/ IC_Design_Recharge_Manual.pdf
2. C.J. Barnes G. Jacobsen G.D. Smith The origin of high nitrate ground waters in the Australian arid zone J. Hydrol. 137 1992 181-197
3. C. Colvin Increased risk of methemoglobinemia as a result of bottle feeding by HIV positive mothers in South Africa 1999 IAH Congress Bratislava
4. K.L. Davidson et al. Nitrate toxicity in dairy heifers. I. Effects on reproduction, growth, lactation and vitamin A nutrition J. Dairy Sci. 47 1964 1065-1073
5. J.J. De Vries E.T. Selaolo H.E. Beekman Groundwater recharge in the Kalahari, with reference to paleo-hydrologic conditions J. Hydrol. 238 2000 110-123
6. De Wit, P.V., Nachtergaele, F.O., 1990. Soil Mapping and Advisory Services Botswana: Explanatory Note on the Soil Map of the Republic of Botswana (Typifying Pedons and Soil Analytical Data), Gaborone.
7. Dougill, A., Cox, J., 1995. Land degradation and grazing in the Kalahari: New analysis and alternative perspectives. Pastoral Development Network, Network Paper 38c, Overseas Institute, London.
8. E. Eriksson V. Khunakasem Chloride concentration in groundwater recharge rate and deposition of chloride in Israel coastal plain J. Hydrol. 1969 178-197
9. T.H.E. Heaton Sources of the nitrate in phreatic groundwater in the western Kalahari J. Hydrol. 67 1984 249-295
10. E. Lagerstedt G. Jacks F. Sefe Nitrate in groundwater and N circulation in eastern Botswana Environ. Geol. 23 1994 60-64
11. P. Lavelle A.V. Spain Soil Ecology 2001 Kluwer Academic Publishers Dordrecht, The Netherlands 514ff
12. M. Lubczynski Groundwater evapotranspiration - Underestimated component of the groundwater balance in a semi-arid environment - Serowe case, Botswana In: O. Sililo et al. (Ed.) Groundwater: Past Achievements and Future Challenges 2000 Balkema Rotterdam 199-204
13. I.P. Martini W. Chesworth Weathering, Soils and Paleosoils Developments in Earth Surface Processes vol. 2 1992 Elsevier Amsterdam 309-377 (Department of Land Resource Science, University of Guelph, Ont. N1G 2W1, Canada)
14. Mokokwe, K., 1999. Occurrence of groundwater with high nitrate content - Orapa wellfields. Inception report, DGS, Lobatse.
15. Mphinyane, W.N., 2001. Influence of livestock grazing within biospheres under free range and controlled conditions in Botswana. Ph.D. Thesis, Department of Plant Production and Soil Science, Faculty of Natural and Agricultural Sciences, University Pretoria.
16. E.D. Schulze G. Gebauer H. Ziegler O.L. Lange Estimates of nitrogen fixation by trees on aridity gradient in Namibia Oecologia 88 1991 451-455
17. E.T. Selaolo Tracer studies and groundwater recharge assessment in the eastern fringe of the Botswana Kalahari, the Letlhakeng-Botlhapatlou area 1998 Thamaga Botswana
18. Stadler, S., Osenbrück, K., Hoyer, M.v., Suckow, A., Weise, S.M., Hötzl, H., Himmelsbach, T., this issue. Sources and fate of nitrate in groundwaters of the Kalahari. Physics and Chemistry of the Earth
19. D.S.G. Thomas P.A. Shaw The Kalahari Environment 1991 Cambridge University Press Cambridge Science B.V. (284 pp.)
20. Tredoux, G., 2004. Nitrate and associated hazard quantification and strategies for protecting rural water supplies. Report to the Water Research Commission of South Africa, WRC Report No. 1058/04, ISBN 1-77005-173-2, 75 pp.
21. P. Van Wyk Southern African Trees - A Photographic Guide 2001 Struik Publishers (pty) Ltd. Cape Town 144 pp.
22. B.T. Verhagen Isotope hydrology of the Kalahari: Recharge or no recharge? Palaeoecology of Africa and the surrounding islands. 21 1990 S143-S158
23. WHO, 1998. Guidelines for drinking water quality, second ed., Geneva, World Health Organization.