Impact of tree crowns on grass quality and structure in a semi‐arid rangeland in southwestern Zimbabwe

African Journal of Range and Forage Science

Volumn 15, Issue 3, 1998, Pages 97-101

  Moyo, C S ^a   Campbell, B M ^b   Dijkman, W ^c  

^a Matopos Research Station Bulawayo   (Zimbabwe)

^b UNIVERSITY OF ZIMBABWE   (Zimbabwe)

^c UTRECHT UNIVERSITY   (Netherlands)

Author keywords

Palatable; Quality; Re establishment; Selective grazing; Structure

Indexed keywords

EID: 33748901521     PISSN: 10220119     EISSN: 17279380     Source Type: Journal    
DOI: 10.1080/10220119.1998.9647950     Document Type: Article

References (22)

1. Amundson RG, Ali AR & Belsky AJ 1995. Stomatal responsiveness to changing light intensity increases rain-use efficiency of below-crown vegetation in tropical savannas. Journal of Arid Environments 29:139-153.
2. AOAC. 1965. Official methods of analysis (10th edn). Association of Official Agricultural Chemists, Washington.
3. Bclsky AJ 1992. EfTcct or trees on nutritional quality of understoiy gramineous forage in tropical savannas. Tropical Grasslands 26:12-20.
4. Bclsky AJ, Amundson RG, Duxbury JM, Riha SJ, Ali AR & Mwonga SM 1989. The effects of trees on their physical, chemical, and biological environments in a semi-arid savanna in Kenya. Journal of Applied Ecology 26:1005-1024.
5. Bclsky AJ, Mwonga SM & Duxbury JM 1993. Effects of widely spaced trees and livestock grazing on undcrstorcy environments in tropical savannas. Agro-forestry Systems 24:1-20.
6. Brown JR & Archer S 1989. Woody plant invasion of grasslands: establishment of honey mcsquite (Prosopii glandulosa var. glandulosa) on sites differing in herbaceous biomass and grazing history. Occologia 80:19-26.
7. Fitter AH 1986. Acquisition and utilisation of resources. In: Crawley MJ (ed). Plant ccology. Blackwell Scientific Publications. Boston, pp. 375-405.
8. Frost P, Medina E, Mcnaut J-C, Solbrig OT, Swift M & Walker BH 1986. Responses of savannas to stress and disturbance. International Union of Biological Sciences. Special Issue 10.
9. Genstat 5 1988, Genstat reference manual. Oxford Science Publications.
10. Goering HK & Van Soest PJ 1970. Forage fiber analysis. Agriculture Handbook 379, USDA.
11. GrifTiocn C & O'Connor TG 1990. The influence of trees and termite mounds on the soils and herbaceous composition of a savanna grassland. South African Journal of Ecology 1:18-26.
12. Kcnnard DG & Walker BH 1973. Relationships between tree canopy cover and Panicum maximum in the vicinity of Fort Victoria. Rhodesia Journal of Agricultural Research 11:145-153.
13. Moyo CS, Sikosana JLN & Gambiza J 1995. Recovery of cutrophic rangeland from a severe drought Proceedings of the Fifth International Rangeland Congress 1:385-386.
14. Moyo CS & Campbell BM 1999. Grass spccics composition, yield and quality under and outside tree crowns in a semi-arid rangeland of south-western Zimbabwe. African Journal of Range & Forage Science 15:23-34.
15. Moyo CS, Frost PGH & Campbell BM 1999. Soil nutrient and micro-climate modification by tree crowns in a semi-arid rangeland of south-western Zimbabwe African Journal of Range & Forage Science 15:16-22.
16. Smit GN & Swart JS 1994. Influence of leguminous and non-leguminous woody plants on the herbaceous layer and soil under varying competition regimes in mixed bushveid. African Journal of Range & Forage Science 11:27-33.
17. Stuart-Hill GC, Tainton NM & Barnard HJ 1987. The influence of an Acacia karroo tree on grass production in its vicinity. Journal of the Grassland Socicty of Southern Africa 3:83-88.
18. Teague WR & Smit GN 1992. Relations between woody and herbaceous components and the effect of bush clearing in southern African Savannas. Journal of the Grassland Society of Southern Africa 9:60-69.
19. Tiedcmann AR & Klemmedson JO 1973. Effect of mcsquite on physical and chemical properties of the soil. Journal of Range Management 26:27-29
20. Ticdcmann AR & Klemmedson JO 1977. Effect of mcsquite trees on vegetation and soils in the desert grassland. Journal of Range Management 30:361-367.
21. Vccncndaal EM, Shushu DD & Scurlock JMO 1993. Responses to shading of seedlings of savanna grasses (with different C4 pholosynlhctic pathways) in Botswana. Journal of Tropical Ecology' 9:213-229.
22. Ward HK, Richardson FD, Denny RP & Dye PJ 1979. Matopos Research Station: a perspective. Rhodesia Agricultural Journal 76:5-18.