Invasive alien plants and water resources in South Africa: Current understanding, predictive ability and research challenges

South African Journal of Science

Volumn 100, Issue 1-2, 2004, Pages 27-33

  Gorgens A H M ^a,b   Van Wilgen, B W ^c  

^a STELLENBOSCH UNIVERSITY   (South Africa)

^b Ninham Shand Consulting Services   (South Africa)

^c DSI CSIR Nanotechnology Innovation Centre   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

AFFORESTATION; BASIN MANAGEMENT; BIOLOGICAL INVASION; ECOHYDROLOGY; HYDROLOGICAL CHANGE; WATER MANAGEMENT;

AFRICA; SOUTH AFRICA; SOUTHERN AFRICA; SUB-SAHARAN AFRICA;

EID: 2342509554     PISSN: 00382353     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Review

References (47)

1. Van Wilgen B.W., Cowling R.M. and Le Maitre D.C. (1998). Ecosystem services, efficiency, sustainability and equity: South Africa's Working for Water programme. Trends Ecol. Evol. 13, 37 8.
2. Anon. (2002). The Working for Water Programme Annual Report 2001/02. Department of Water Affairs and Forestry, Cape Town.
3. Kruger F.J. (1977). Invasive woody plants in Cape fynbos with special reference to the biology and control of Pinus pinaster. In Proc. Second National Weeds Conference of South Africa, Stellenbosch, pp. 57-74.
4. Van Wilgen B.W., Little P.R., Chapman R.A., Görgens A.H.M., Willems T. and Marais C. (1997). The sustainable development of water resources: history, financial costs and benefits of alien plant control programmes. S. Afr. J. Sci. 93, 404-411
5. Le Maitre D.C., van Wilgen B.W., Chapman R.A. and McKelly D. (1996). Invasive plants and water resources in the Western Cape Province, South Africa: modelling the consequences of a lack of management. J. appl. Ecol. 33, 161-172.
6. Van Wilgen B.W., Cowling R.M. and Burgers C.J. (1996). Valuation of ecosystem services: a case study from the fynbos, South Africa. BioScience 46, 184-189.
7. Le Maitre D.C., Versfeld D.B. and Chapman R.A. (2000). Theimpact of invading alien plants on surface water resources in South Africa: a preliminary assessment. Water SA 26, 397-408.
8. Le Maitre D.C., Van Wilgen B.W., Gelderblom C.M., Bailey C., Chapman R.A. and Nel J.A. (2002). Invasive alien trees and water resources in South Africa: case studies of the costs and benefits of management. For. Ecol. Manage. 160, 143-159.
9. Schulze R.E. (1995). Hydrology and agrohydrology: A text to accompany the ACRU 3.00 agrohydrological modelling system. Technology Transfer Report TT69/95. Water Research Commission, Pretoria.
10. Versfeld D.B., Le Maitre D.C. and Chapman R.A. (1998). Alien invading plants and water resources in South Africa: A preliminary assessment. Report TT 99/98, Water Research Commission, Pretoria.
11. Görgens A.H.M. (2001). Impacts of invasive alien plants on water resources. A framework assessment of current knowledge and research needs. Unpublished report, Department of Civil Engineering, University of Stellenbosch and Ninham Shand Consulting Engineers, Cape Town.
12. Pegram G.C., Görgens A.H.M. and Otterman A.B. (1997). A framework for addressing the information needs of catchment water quality management. Water SA 23, 13-20.
13. Dye P.J. and Bosch J.M. (1999). Sustained water yield in afforested catchments: the South African experience. In Sustainable Forest Management, eds K. von Gadow, T. Pukkala and M. Tomé, pp. 99-120. Kluwer, Dordrecht.
14. Van Wyk D.B. (1980). Some effects of afforestation on streamflow in the Western Cape Province, South Africa. Water SA 13, 31-36.
15. Van Lill W.S., Kruger F.J. and van Wyk D.B. (1980). The effect of afforestation with Eucalyptus grandis Hill ex Maiden and Pinus patula Schlecht. et Cham. on streamflow from experimental catchments at Mokubulaan, Transvaal. J. Hydrol. 48, 107-118.
16. Scott D.F., Prinsloo F.W., Moses G., Mehlomakulu M. and Simmers A.D.A. (2000). A re-analysis of the South African catchment afforestation experimental data. Report 810/1/00. Water Research Commission, Pretoria.
17. Dye P.J., Poulter A.G., Soko S. and Maphanga D. (1997). The determination of the relationship between transpiration rate and declining available water for Eucalyptus grandis. Report 441/1/97. Water Research Commission, Pretoria.
18. Dye P., Moses G., Vilakazi P., Ndlela R. and Royappen M. (2001). A comparison of the water use of wattle-invaded and indigenous riparian plant communities. Report 808/1/01. Water Research Commission, Pretoria.
19. Jarmain C., Everson C.S. and Dye P.J. (2003). Total evaporation of natural vegetation. Proc. 11th South African National Hydrology Symposium, Port Elizabeth, 3-5 September 2003.
20. Everson C.S., Jarmain C. and Gush M. (2001). Riparian water use along the Sabie River in the Kruger National Park. Proc. 10th South African National Hydrology Symposium, University of Natal, Pietermaritzburg, 26-28 September 2001.
21. Rowntree K.M. and Beyers G.J. (1999). An experimental study of the effect of Acacia mearnsii on streamflow in the Sand River, Zwartkops River catchment, Eastern Cape. Report KV 123/99. Water Research Commission, Pretoria.
22. Dye P.J. and Poulter A.G. (1995). Field demonstrations of the effect on streamflow of clearing invasive pine and wattles trees from a riparian zone. S. Afr. For. J. 173, 27-30.
23. Prinsloo F.W. and Scott D.F. (1999). Streamflow responses to the clearing of alien invasive trees from riparian zones at three sites in the Western Cape Province. S. Afr. For. J. 185, 1-7.
24. Scott D.F. and Lesch W. (1995). The water yield gains obtained from clear-felling riparian zone vegetation. Proc. 7th South African National Hydrology Symposium, Grahamstown, 4-6 September 1995.
25. Maclear L.G.A. and Kotze J.C. (1999). The impact of alien vegetation clearing on a coastal aquifer - Bushmans River Mouth, a case study. Report 259808, SRK Consulting, Cape Town.
26. Fourie F., Mbatha K., Verster H. and Van Dyk G. (2003). The effect of vegetation (Prosopis species) on groundwater levels in Rugseer River, Kenhardt. Proc. 11th South African National Hydrology Symposium, Port Elizabeth, 3-5 September 2003.
27. Bosch J.M. and Hewlett J.D. (1982). A review of catchment experiments to determine the effects of vegetation changes on water yield and evapotranspiration. J. Hydrol. 55, 2-23.
28. Dye P. and Jarmain C. (2004). Water use by black wattle (Acacia mearnsii): implications for the link between removal of invading trees and catchment streamflow response. S. Afr. J. Sci. 100, 40-44.
29. Dye P., Jacobs S. and Drew D. (2001). 3-PG: a practical, process-based model for predicting water use by plantation forests. Proc. 10th South African National Hydrology Symposium, University of Natal, Pietermaritzburg, 26-28 September 2001.
30. Le Maitre D. (2001). Water-use of invading Prosopis (Mesquite) and its implications for groundwater resources and ecosystems in the Karoo and Kalahari regions. Proc. 10th South African National Hydrology Symposium, University of Natal, Pietermaritzburg, 26-28 September 2001.
31. Royappen M., Everson C. and Herbert M. (2003). Hydrological impacts of alien invasive species in KwaZulu-Natal, RSA, using the SWAT model. Proc. 2nd International Symposium on Integrated Water Resources Management, IAHS International Commission for Water Resource Systems, Stellenbosch.
32. Van der Zel, D.W. and Kruger, F.J. (1975). Results of the multiple catchment experiments at the jonkershoek Research Station, South Africa. II. Influence of protection of fynbos on stream discharge in Langrivier. Forestry in South Africa 16, 13-18.
33. Lindley A.J., Bosch J.M. and van Wyk D.B. (1988). Changes in water yield after fire in fynbos catchments. Water SA 14, 7-12.
34. Everson C.S. (2001). The water balance of a first order catchment in the montane grasslands of Natal. J. Hydrol. 241, 110-123.
35. Larsen J.E., Marais C. and Görgens A.H.M. (2001). Water resources planning with recognition of alien invasive plant clearing. Proc. 10th South African National Hydrology Symposium, University of Natal, Pietermaritzburg, 26-28 September 2001.
36. Pitman W.V. (1973). A mathematical model for generating monthly river flows from meteorological data in South Africa, Hydrological Research Unit Report 2/73, University of the Witwatersrand, Johannesburg.
37. Hayes L., Jewitt G.P.W., Schulze R.E. and Levite H. (2003). Classification of invasive alien plants as a land use for hydrological modelling. Proc. 11th South African National Hydrology Symposium, Port Elizabeth, 3-5 September 2003.
38. Landsberg J.J. and Waring R.H. 1997. A generalised model of forest productivity using simplified concepts of radiation-use efficiency, carbon balance and partitioning. For. Ecol. Manage. 95, 209-228.
39. Le Maitre D.C. and Görgens A.H.M. (2003). Impact of invasive alien vegetation on dam yields. Report KV141/33. Water Research Commission, Pretoria.
40. Schultz C.B., Watson M.D., Strydom C. and Taviv I. (2001). An overview of the water situation assessment model (WSAM). Proc. 10th South African National Hydrology Symposium, University of Natal, Pietermaritzburg, 26-28 September 2001.
41. Department of Water Affairs and Forestry (2002). National Water Resource Strategy. Http://www.dwaf.gov.za/docs/NWRS. Pretoria.
42. Gush M., Scott D., Jewitt G., Schulze R., Lumsden T., Hallowes L. and Görgens A.H.M. (2002). Estimation of streamflow reductions resultingfrom commercial afforestation in South Africa. WRC Report TT 173/02 by the CSIR, University of Natal and University of Stellenbosch to the Water Research Commission.
43. Ratcliffe G., Ewart-Smith J. and Görgens A.H.M. (2003). External evaluation of the Working for Water Programme: water resource. Unpublished report, Freshwater Consulting Group and Ninham Shand Consulting Services, Cape Town.
44. Anon. (2002). Rain management charges up and running. Wood Southern Africa & Timber Times 27(8), 4-5.
45. Anon. (2002). DWAF's rain management charges: the cost to you. SA Forestry May/June 2002, 11-13.
46. Owen D.L. and van der Zel D.W. (2000). Trees, forests and plantations in southern Africa. In South African Forestry Handbook 2000, ed. D.L. Owen. Southern African Forestry Institute, Menlo Park.
47. Turpie J. (2004). The role of resource economics in the control of invasive alien plants in South Africa. S. Afr. J Sci. 100, 87-93.