More information:

Krah, M., McCarthy, T.S., Huntsman-Mapila, P., Wolski, P., Annegarn, H. and Sethebe, K. 2006. Nutrient Budget in the Seasonal Wetland of the Okavango Delta, Botswana. Wetlands Ecology and Management, 14(3): 253-267


Description:

Nutrient Budget in the Seasonal Wetland of the Okavango Delta, Botswana.

Summary / Notes:

The nutrient (P and N species) and chloride budgets were investigated in a representative floodplain in the seasonal wetlands of the Okavango Delta, Botswana. A variety of sources of nutrients in the surface water were considered, namely ion species coming with the floodwater, those generated from dry floodplain soils and those from water-soluble dust deposition (both local and long-range sources). Concentrations of total-nitrogen and chloride in surface water were below 1 mg l−1. Total-phosphorus concentrations were 0.05 mg l−1, reflecting the oligotrophic character of the system. Dust deposition rates were highest for chloride at 2.44 g m−2 year−1 followed by 0.79 g m−2 year−1 for total-N, 0.40 g m−2 year−1 for ammonia and only 0.02 g m−2 year−1 for total-P, respectively. Chloride was derived primarily from long-range transport, while N and P species were of more local origin. Dissolution rates for these ions combined were calculated to be 3.9 g m−2 for the flooded area in the 1999 season and thus all dry deposits must be re-dissolved. The accumulation of dust deposits on dry surfaces and their subsequent dissolution causes 2–5 times higher concentrations of nitrogen, phosphorus and chloride with the onset of the flood, thus boosting the nutrient stock in the crucial phase of the onset of flooding. Chloride dissolved from dry soil surfaces and dust contributed approximately 40% to the overall floodplain budget. Although contributions from the soil surface and dust to the nitrogen and phosphorus pools of the floodplain are less prominent (with 10% of total), they nonetheless represent a significant source of nutrients in the entire system. Extrapolation to annually flooded swamps (10,000 km2) indicates a maximum contribution of 40% for total-nitrogen and 60% for total-phosphorus from dust deposition on wet or dry surfaces to the nutrient pool of the water body. Keywords: dust deposition, nutrient transport, Okavango delta, soil surface, Water chemistry.

Year: 2006

Type: Journal Article

URL: http://link.springer.com/article/10.1007%2Fs11273-005-1115-0


Top 50 related results:

You may also be interested in the following items which are on a similar or related topic, listed in order of similarity.

Results per page:

Results: 1 to 50 of 50

To FILTER: Use the pale green row to filter the results on this page. Type in text or select from the year list.

Rows matching filter(s): All
What is this row? 
Data titleYearOriginFile typeDownloadkml/kmz
Gumbricht, T., Wolski, P., Frost, P. and McCarthy, T.S. 2004. Forecasting the spatial extent of the annual flood in the Okavango delta, Botswana. Journal of Hydrology, 290(3–4): 178–191
  » More info & related results
2004 Journal Article
Ramberg, L., Lindholm, M., O. Hessen, D., Murray-Hudson, M., Bonyongo, C., Heinl, M., Masamba, W., VanderPost, C. and Wolski, P. 2010. Aquatic ecosystem responses to fire and flood size in the Okavango Delta: observations from the seasonal floodplains. Wetlands Ecology and Management, 18(5): 587-595
  » More info & related results
2010 Journal Article
Mackay, A.W., Davidson, T., Wolski, P., Woodward, S., Mazebedi, R., Masamba, W.R.L. and Todd, M. 2012. Diatom sensitivity to hydrological and nutrient variability in a subtropical, flood-pulse wetland. Ecohydrology, 5(4): 491–502
  » More info & related results
2012 Journal Article
The Okavango Research Group. University of the Witwatersrand, Johannesburg
  » More info & related results
2019 Website
Wolski, P. and Murray-Hudson, M. 2007. Detection and causal factors of change in flood distribution in the Okavango Delta, Botswana. Harry Oppenheimer Okavango Research Centre, Botswana
  » More info & related results
2007 Report1.44 mb pdf
Preview
Wolski, P. and Murray-Hudson, M. 2005. Flooding dynamics in a large low-gradient alluvial fan, the Okavango Delta, Botswana, from analysis and interpretation of a 30-year hydrometric record. Hydrology and Earth System Sciences Discussions, 2: 1865–1892
  » More info & related results
2005 Journal Article1.2 mb pdf
Preview
Heinl, M., Frost, P., Vanderpost, C. and Sliva, J. 2007. Fire activity on drylands and floodplains in the southern Okavango Delta, Botswana. Journal of Arid Environments, 68(1): 77–87
  » More info & related results
2007 Journal Article
Schmidt, L., Domptail, S., Klintenberg, P., Gruber, M., Schmiedel, U., Zimmermann, I. and Falk, T. 2013. Transdisciplinary research and stake-holder involvement. A review of the TFO approach. In: Oldeland, J., Erb, C., Finckh, M. and Jürgens, N. 2013. (Eds.): Environmental Assessments in the Okavango Region. Biodiversity and Ecology, 5: 195–212
  » More info & related results
2013 Book, Book Section, Booklet4.75 mb pdf
Preview
Krah, M., McCarthy, T.S., Annegarn, H. and Ramberg, L. 2004. Airborne dust deposition in the Okavango Delta, Botswana, and its impact on landforms. Earth Surface Processes and Landforms, 29(5): 565–577
  » More info & related results
2004 Journal Article
Bonyongo, M.C. and Mubyana, T. 2004. Soil nutrients status in vegetation communities of the Okavango Delta floodplains. South African Journal of Science, 100: 337-340
  » More info & related results
2004 Journal Article1.64 mb pdf
Preview
McCarthy, T.S. and Ellery, W.N. 1998. The Okavango Delta. Transactions of the Royal Society of South Africa, 53(2): 157-182
  » More info & related results
1998 Journal Article9.97 mb pdf
Preview
Høberg, P., Lindholm, M., Ramberg, L. and Hessen, D.O. 2002. Aquatic food web dynamics on a floodplain in the Okavango delta, Botswana. Hydrobiologia, 470: 23-30
  » More info & related results
2002 Journal Article
Bonyongo, M.C., Mubyana, T., Totolo, O. and Veenandaal, E.M. 2002. Flooding and soil nutrient status in the Okavango Delta's seasonal floodplains. Botswana Notes and Records, 34: 123-130
  » More info & related results
2002 Journal Article
Revermann, R. 2016. Analysis of vegetation and plant diversity patterns in the Okavango Basin at different spatial scales: Integration of field based methods, remote sensing information and ecological modelling. PhD Thesis, Faculty of Mathematics, Informatics and Natural Sciences, Department of Biology of the University of Hamburg
  » More info & related results
2016 Thesis18.19 mb pdf
Preview
McCarthy, T.S. 2006. Groundwater in the wetlands of the Okavango Delta, Botswana, and its contribution to the structure and function of the ecosystem. Journal of Hydrology, 320(3–4): 264–282
  » More info & related results
2006 Journal Article
Murray-Hudson, M., Wolski, P. and Ringrose, S. 2006. Scenarios of the impact of local and upstream changes in climate and water use on hydro-ecology in the Okavango Delta, Botswana. Journal of Hydrology. 331(1–2): 73–84
  » More info & related results
2006 Journal Article
Burg, V. 2007. Climate change affecting the Okavango Delta. Diploma Thesis, July 2007. This diploma thesis was written at the Institute of Environmental Engineering (IfU), Swiss Federal Institute of Technology Zurich (ETH Zurich)
  » More info & related results
2007 Thesis4.89 mb pdf
Preview
Wolski, P., Savenije, H.H.G., Murray-Hudson, M. and Gumbricht, T. 2006. Modelling of the flooding in the Okavango Delta, Botswana, using a hybrid reservoir-GIS model. Journal of Hydrology, 331(1–2): 58–72
  » More info & related results
2006 Journal Article
Bennitt, E. Okavango Buffalo Research: The ecology of African buffalo (Syncerus caffer) in the Okavango Delta, Botswana. PhD thesis, University of Bristol
  » More info & related results
 Thesis
Hitchcock, R.K. 2000. Water resource use and management in the Okavango system of southern Africa: the political economy of state, community and private resource control. Botswana Notes and Records, 31
  » More info & related results
2000 Journal Article
Hamandawana, H., Chanda, R. and Eckardt, E. 2008. Reappraisal of contemporary perspectives on climate change in southern Africa's Okavango Delta sub-region. Journal of Arid Environments, 72(9): 1709–1720
  » More info & related results
2008 Journal Article
Murray-Hudson, M. 2009. Floodplain vegetation responses to flood regime in the seasonal Okavango Delta, Botswana. PhD Thesis
  » More info & related results
2009 Thesis1.61 mb pdf
Preview
Bethune, S., Amakali, M. and Roberts, K. 2005. Review of Namibian legislation and policies pertinent to environmental flows. Physics and Chemistry of the Earth, Parts A/B/C, 30(11–16): 894–902
  » More info & related results
2005 Journal Article
Wolski, P. and Savenije, H.H.G. 2006. Dynamics of floodplain-island groundwater flow in the Okavango Delta, Botswana. Journal of Hydrology, 320(3–4): 283–301
  » More info & related results
2006 Journal Article
Mmopelwa, G. 2006. Economic and financial analysis of harvesting and utilization of river reed in the Okavango Delta, Botswana. Journal of Environmental Management, 79(4): 329–335
  » More info & related results
2006 Journal Article
Moleele, N.M. 2008. Mainstreaming Biodiversity Conservation Objectives in the Management of Wetland Resources in the Okavango Delta: Lessons and Experiences. Presented at the International Wetlands Conference, Maun Lodge, 31st January - 1st February, 2008
  » More info & related results
2008 Report3 mb pdf
Preview
Kurugundla, C.N. and Serumola, O. 2007. Impacts of Deltamethrin Spray on Adults of the Giant Salvinia Biocontrol Agent, Cyrtobagous salviniae. Journal of Aquatic Plant Management, 45: 124-129
  » More info & related results
2007 Journal Article167 kb pdf
Preview
Gumbricht, T. and McCarthy, T.S. 2003. Spatial patterns of islands and salt crusts in the Okavango Delta, Botswana. South African Geographical Journal, 85(2): 164-169
  » More info & related results
2003 Journal Article664 kb pdf
Preview
Gumbricht, T., McCarthy, J. and McCarthy, T.S. 2004. Channels, wetlands and islands in the Okavango Delta, Botswana, and their relation to hydrological and sedimentological processes. Earth Surface Processes and Landforms, 29(1): 15–29
  » More info & related results
2004 Journal Article
Tooth, S. and McCarthy, T.S. 2004. Controls on the transition from meandering to straight channels in the wetlands of the Okavango Delta, Botswana. Earth Surface Processes and Landforms, 29(13): 1627–1649
  » More info & related results
2004 Journal Article
Gumbricht, T., McCarthy, T.S. and Bauer, P. 2005. The micro-topography of the wetlands of the Okavango Delta, Botswana. Earth Surface Processes and Landforms, 30: 27-39
  » More info & related results
2005 Journal Article950 kb pdf
Preview
Ramberg, L., Lindholm, M., Bonyongo, C., Hessen, D.O., Heinl, M., Masamba, W., Murray-Hudson, M., VanderPost, C. and Wolski, P. 2008. Aquatic ecosystem responses to fire and flood size in the Okavango Delta: natural experiments on seasonal floodplains
  » More info & related results
2008 Report970 kb pdf
Preview
Pröpper, M., Gröngröft, A., Finckh, M., Stirn, S., de Cauwer, V., Lages, F., Masamba, W., Murray-Hudson, M., Schmidt, L., Strohbach, B. and Jürgens, N. 2015. The Future Okavango - Conclusões, Cenários e Recomendações para Ações. Síntese do Relatório Final do Projeto de Pesquisa, 2010 a 2015, 199 pages
  » More info & related results
2015 Book, Book Section, Booklet9.55 mb pdf
Preview
Pröpper, M., Gröngröft, A., Finckh, M., Stirn, S., de Cauwer, V., Lages, F., Masamba, W., Murray-Hudson, M., Schmidt, L., Strohbach, B. and Jürgens, N. 2015. The Future Okavango - Calender
  » More info & related results
2015 Book, Book Section, Booklet7.43 mb pdf
Preview
Bonyongo, M.C. and Ogutu, J. 2007. Trends in large herbivore populations in the Okavango Delta, a dynamic protected wetland ecosystem. Harry Oppenheimer Okavango Research Centre, University of Botswana. SCB Symposium, Port Elizabeth, 1-5 July 2007
  » More info & related results
2007 Report16.24 mb pdf
Preview
Behnke, R.H. 1998. Kavango Grazing Systems Study: Final Report
  » More info & related results
1998 Report15.9 mb pdf
Preview
van der Post, C. (ed). 2005. Ecological aspects of the Okavango Delta. A selection of articles by research staff of the Harry Oppenheimer Okavango Research Centre. Okavango Report Series No.4, Harry Oppenheimer Okavango Research Centre, Maun
  » More info & related results
2005 Report
Sheppe, W. 1972. A note on research into mammals of the Chobe River flood-plain. Botswana Notes and Records, 4: 281
  » More info & related results
1972 Journal Article
Child, G. 1971. Wildlife Research in Botswana. Botswana Notes and Records, 3: 280-283
  » More info & related results
1971 Journal Article
Gieske, A. 1996. Modelling of surface outflow from the Okavango Delta. Botswana Notes and Records, 28: 165-192
  » More info & related results
1996 Journal Article
Wolski, P., Masaka, T., Raditsebe, L. and Murray-Hudson, M. 2005. Aspects of seasonal dynamics of flooding in the Okavango Delta. Botswana Notes and Records, 37 (Special Edition on Human Interactions and Natural Resource Dynamics in the Okavango Delta and Ngamiland): 179-195
  » More info & related results
2005 Journal Article
Baines, L., Morgan, E.R., Ofthile, M. and Evans, K. 2015. Occurrence and seasonality of internal parasite infection in elephants, Loxodonta africana, in the Okavango Delta, Botswana. International Journal for Parasitology: Parasites and Wildlife, 4(1): 43–48
  » More info & related results
2015 Journal Article
Maboa, R. 2016. Spatial and temporal changes in the rainfall patterns of Botswana, 1998-2013. MSc Thesis, Faculty of Science, University of the Witwatersrand, Johannesburg
  » More info & related results
2016 Thesis1.72 mb pdf
Suhling, F., Samways, M.J., Simaika, J. P., Richter, O., Marais, E., Martens, A. and Kipping, J. 2010. Dragonfly diversity from the Cape to the Kavango. In: Schmiedel, U., Jürgens, N. (Eds.) Biodiversity in southern Africa. Volume 2: Patterns and processes at regional scale : pp. 64–69, Klaus Hess Publishers, Göttingen & Windhoek
  » More info & related results
2010 Book, Book Section, Booklet1.68 mb pdf
Preview
Kolberg, H. 2015. Summary of the 2015 Summer Wetland Bird Counts in Namibia. Lanioturdus, 48(3): 31-33
  » More info & related results
2015 Journal Article5.4 mb pdf
Preview
Kolberg, H. 2016. Summary of the 2015 Winter Wetland Bird Counts in Namibia. Lanioturdus, 49(3): 2-5
  » More info & related results
2016 Journal Article3.21 mb pdf
Preview
Revermann, R. and Finckh, M. 2013. Okavango Basin - Vegetation. In: Oldeland, J., Erb, C., Finckh, M. and Jürgens, N. (eds). Environmental Assessments in the Okavango Region. Biodiversity and Ecology, 5: 29-35
  » More info & related results
2013 Journal Article5.94 mb pdf
Preview
Marazzi, L. 2013. Okavango Delta - Biodiversity of Microalgae, precious invisible plants. In: Oldeland, J., Erb, C., Finckh, M. and Jürgens, N. (eds). Environmental Assessments in the Okavango Region. Biodiversity and Ecology, 5: 161-163
  » More info & related results
2013 Journal Article1.86 mb pdf
Preview
Revermann, R. and Finckh, M. 2013. Cusseque - Micro-climatic Conditions. In: Oldeland, J., Erb, C., Finckh, M. and Jürgens, N. (eds). Environmental Assessments in the Okavango Region. Biodiversity and Ecology, 5: 47-50
  » More info & related results
2013 Journal Article2.39 mb pdf
Preview
Revermann, R., Maiato, F., Gomes, A., Lages, F. and Finckh, M. 2013. Cusseque - Vegetation. In: Oldeland, J., Erb, C., Finckh, M. and Jürgens, N. (eds). Environmental Assessments in the Okavango Region. Biodiversity and Ecology, 5: 59-63
  » More info & related results
2013 Journal Article3.25 mb pdf
Preview

» Links to useful free software for working with shapefiles, kml and kmz files, pdf files and more.