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Journal of Environmental Science and Technology

Year: 2010 | Volume: 3 | Issue: 4 | Page No.: 217-225
Research Article

Improving Hydrological Responses of Degraded Soils in Semi Arid Kenya

K. Z. Mganga
Department of Land Resource Management and Agricultural Technology, Faculty of Agriculture, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
N. K.R. Musimba
Department of Land Resource Management and Agricultural Technology, Faculty of Agriculture, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
M. M. Nyangito
Department of Land Resource Management and Agricultural Technology, Faculty of Agriculture, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
D. M. Nyariki
Department of Land Resource Management and Agricultural Technology, Faculty of Agriculture, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
A. W. Mwang`ombe
Department of Plant Science and Crop Protection, Faculty of Agriculture, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
A study was conducted to establish the contribution of reseeding using indigenous perennial grasses; Eragrostis superba (Maasai love grass), Enteropogon macrostachyus (Bush rye) and Cenchrus ciliaris (African foxtail grass) in improving soil hydrological properties and thus controlling soil erosion in the degraded areas of Kibwezi district, Kenya. The experiment was carried out using simulated rainfall, Kamphorst simulator, on bare ground and at different grass stubble heights. The experimental plots were set up under sprinkler irrigation controlled conditions to ensure availability of sufficient moisture for seed germination and subsequent establishment. Results showed that sediment production as a function of runoff and infiltration capacity was significantly different (p<0.05) at different grass stubble heights. Cenchrus ciliaris had the greatest influence on improving soil hydrological properties. Enteropogon macrostachyus and Eragrostis superba were ranked second and third, respectively. This was attributed to the growth characteristics of the perennial grasses. Generally, an increase in grass height increased infiltration capacity, reduced runoff and sediment production.
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References

  1. Andrew, M.H. and J.J. Mott, 1983. Annuals with transient seed banks: The population biology of indigenous Sorghum species of tropical North-West Australia. Aust. J. Ecol., 24: 265-276.
  2. Bekure, S., P.N. de Leuw, B.E. Grandin and P.J.H. Neate, 1991. Maasai Herding. ILCA, Addis Ababa, Ethiopia.
  3. Biamah, E.K, 2005. Coping with Drought: Options for Soil and Water Management in Semi-Arid Kenya. Wageningen University and Research Centre, The Netherlands Pages: 119.
  4. Braunn, H.M.H., 1977. Average monthly rainfall as a percentage of the annual rainfall in Kenya and Tanzania, with particular reference to the Kenya coast, Misc. Paper No. M14, Kenya Soil Survey, Nairobi, pp: 1-5.
  5. Broersma, K., J.H. Robertson and D.S. Chanasyk, 1995. Effects of different cropping systems on soil water properties of a Boralf soil. Soil Sci. Plant Anal., 26: 1795-1881.
    CrossRefDirect Link
  6. Bryant, J.A., 1985. Seed Physiology. Edward Arnold, London.
  7. CBS, 2000. Republic of Kenya, Ministry of Economic Planning and Development. Nairobi.
  8. Chin, H.F. and J. Hanson, 1999. Seed Storage. In: Forage Seed Production. 2. Tropical and Sub-Tropical Species, Loch, D.S. and J.E. Ferguson (Eds.). CAB International Publishing, Wallingford, Axon, UK., pp: 303-315.
  9. Cook, S.J. and G.R. Dolby, 1981. Establishment of buffel grass, green panic and siratro from seed broadcast into a spear grass pasture in southern Queensland. Aust. J. Agric. Res., 32: 749-759.
    CrossRefDirect Link
  10. Ernest, W.H.O. and D.J. Tolsma, 1988. Dormancy and germination of semi-arid annual species, Tragus berteroniannus and Tribulus terrestris. Flora, 181: 243-251.
  11. Fregeau, J. and V. Burrows, 1989. Secondary dormancy in dorm oats following temperature treatments: Field and laboratory responses. Can. J. Plant Sci., 69: 93-99.
  12. Kadmon, R. and A. Schimida, 1990. Patterns of spatial variation in the reproductive success of a desert annual. Oecologia, 83: 139-144.
    CrossRefDirect Link
  13. Kamphorst, A., 1987. A small rainfall simulator for the determination of soil erodibility. Netherlands J. Agric. Sci., 35: 407-415.
  14. Keya, G.A., 1997. Effects of herbivory on the production ecology of perennial grass Leptothrium senegalense (Kunth.) in the arid lands of Northern Kenya. Agric. Ecosyst. Environ., 66: 101-111.
    CrossRef
  15. Kitalyi, A., J. Suazo and F. Ogutu, 2002. Enclosures to Protect and Conserve: For Better Livelihood of the West Pokot Community. RELMA, Nairobi.
  16. Makokha, W., S. Lonyakou, M. Nyang and K.K. Kareko, 1999. We Work Together: Land Rehabilitation and Household Dynamics in Chapereria Division, West Pokot District, Kenya. RELMA, Nairobi.
  17. Michieka, D.O. and B.J.A. van der Pouw, 1977. Soils and vegetation of the Kiboko range research station. A Semi-Detailed Report No. 53, Nairobi.
  18. Mnene, W.N., 2006. Strategies to increase success rates in natural pasture development through reseeding degraded rangelands of Kenya. Ph.D. Thesis, University of Nairobi, Nairobi, Kenya.
  19. Musimba, N.K.R., D.M. Nyariki, C.N. Ikutwa and T. Teka, 2004. Dryland Husbandry for Sustainable Development in the Southern Rangelands of Kenya. OSSREA, Addis Ababa.
  20. Nyangito, M.M., N.K.R. Musimba and D.M. Nyariki, 2009. Hydrological properties of grazed perennial swards in semi-arid southeastern Kenya. Afr. J. Environ. Sci. Tech., 3: 26-33.
    Direct Link
  21. Rietkerk, M., P. Ketner, J. Burger, B. Hoorens and H. Olff, 2000. Multiscale soil and vegetation patchiness along a gradient of herbivore impact in a semi-arid grazing system in West Africa. Plant Ecol., 148: 207-224.
    CrossRefDirect Link
  22. Seobi, T., S.H. Anderson, R.P. Udawatta and C.J. Gantzer, 2005. Influence of grass and agroforestry buffer strips on soil hydrological properties of an Albaqualf. Soil Sci. Soc. Am. J., 69: 893-901.
    Direct Link
  23. Sharif-Zadeh, F. and A.J. Murdoch, 2001. The effects of temperature and moisture on after-ripening Cenchrus ciliaris seeds. J. Arid Environ., 49: 823-831.
    CrossRef
  24. Silcock, R.G. and F.T. Smith, 1982. Seed coating and localized application of phosphate for improving seedling growth of grasses on acidic, sandy red earths. Aust. J. Agric. Res., 33: 7785-7802.
    CrossRefDirect Link
  25. Tarawali, S.A., G. Tarawali, A. Larbi and J. Hanson, 1995. Methods of Evaluation of Forage Legumes, Grasses and Fodder Trees for use as Livestock Feed. ILRI, Nairobi, pp: 51.
    Direct Link
  26. Tweddle, J.C., J.B. Dickie, C.C. Baskin and J.M. Baskin, 2003. Ecological aspects of seed desiccation sensitivity. J. Ecol., 91: 294-304.
    CrossRefDirect Link
  27. Visser, N., C. Morris, M.B. Hardy and J.C. Botha, 2007. Restoring bare patches in the Nama-Karoo of Southern Africa. Afr. J. Range Forage Sci., 24: 87-96.
  28. Wood, H.B., 1977. Hydrological differences between selected forest and agricultural spoils in Hawaii. Soil Sci. Soc. Am. J., 41: 132-136.
    Direct Link
  29. Young, R.A. and B.E. Burwell, 1972. Prediction of runoff and erosion from natural rainfall using a rainfall simulator. Soil Sci. Soc. Am. J., 36: 827-830.
    Direct Link

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