Desertification in the lower Sundays River Valley, South Africa
作者： M.T. Hoffman , R.M. Cowling
DOI: 10.1016/S0140-1963(18)30834-6
关键词: Geography 、 Thicket 、 Shrubland 、 Vegetation type 、 Portulacaria afra 、 Desertification 、 Environmental protection 、 Ordination 、 Grazing 、 Physical geography 、 Grazing pressure
摘要: Extensive desertification, over the next 100 years, has been predicted for eastern parts of South Africa. Using multivariate classification and ordination techniques data from lower Sundays River Valley, Cape, we provide supporting evidence a limited expansion karroid shrublands into adjacent succulent sub-tropical thicket. Karroid appear more resilient to sustained grazing pressure than do mesic thicket vegetation types.
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sci-hub.se 参考文章(36)
RM Cowling, W Bond, DP Bands, BM Campbell, BW Van Wilgen, HC Taylor, EJ Moll, C Boucher, FJ Kruger, Structural characterization of vegetation in the fynbos biome Cooperative Scientific Programmes: CSIR. ,(1981)
Walter E. Westman, Resilience: concepts and measures Springer Netherlands. pp. 5- 19 ,(1986) , 10.1007/978-94-009-4822-8_2
R. E. Schulze, O. S. McGee, Climatic indices and classifications in relation to the biogeography of southern Africa Springer, Dordrecht. pp. 19- 52 ,(1978) , 10.1007/978-94-009-9951-0_2
KL Tinley, Coastal dunes of South Africa National Scientific Programmes Unit: CSIR. ,(1985)
Michael J. Greenacre, Leslie G. Underhill, Topics in Applied Multivariate Analysis: SCALING A DATA MATRIX IN A LOW-DIMENSIONAL EUCLIDEAN SPACE ,(1982) , 10.1017/CBO9780511897375.005
B. L. Turner, H. L. Shantz, Photographic documentation of vegetational changes in Africa over a third of a century. Photographic documentation of vegetational changes in Africa over a third of a century.. ,(1958)
J. F. Gordon-Welsh, C. P. Venter, D. J. L Visser, Geological map of the Republics of South Africa, Transkei, Bophuthatswana, Venda and Ciskei and the Kingdoms of Lesotho and Swaziland Dept. of Mineral and Energy Affairs. ,(1984)
R. A. Lubke, D. A. Everard, Shirley Jackson, The biomes of the eastern Cape with emphasis on their conservation Bothalia. ,vol. 16, pp. 251- 261 ,(1986) , 10.4102/ABC.V16I2.1099
M.O. Hill, DECORANA - A FORTRAN program for detrended correspondence analysis and reciprocal averaging. Cornell University, Ecology Program. ,(1979)
G. E. Gibbs Russell, E. R. Robinson, Phytogeography and speciation in the vegetation of the eastern Cape Bothalia. ,vol. 13, pp. 467- 472 ,(1981) , 10.4102/ABC.V13I3/4.1353