Trends in savanna structure and composition along an aridity gradient in the Kalahari
作者： K. Caylor , P.R. Dowty , P.G.H. Frost , R.J. Scholes , H.H. Shugart
DOI: 10.1658/1100-9233(2002)013[0419:TISSAC]2.0.CO;2
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摘要: Abstract The Kalahari sand sheet occupies 2.5 million ha in southern Africa. It is an area with relatively similar deep aeolian soils, and a strong south to north gradient rainfall, from 200 1000 mm mean annual precipitation (MAP) the region studied. This provides excellent basis for studies at subcontinental scale. paper briefly reviews literature on vegetation of describes structure composition 11 new sites. There clear woody plant biomass (as indexed by basal area) north. Above minimum level MAP, increases rate ca. m2.ha−1 per 100 MAP. Mean maximum tree height also along gradient, reaching 20 m 800 number species contribute > 95% one 16 Members Mimosaceae (mainly Acacia) dominate layer up 400 They are replaced ei...
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sci-hub.se 参考文章(51)
A. M. Yalala, A. B. Rains, The Central and Southern State Lands, Botswana. The Central and Southern State Lands, Botswana.. ,(1972)
B. H. Walker, S. L. Childes, Ecology and dynamics of the woody vegetation on the Kalahari Sands in Hwange National Park, Zimbabwe Plant Ecology. ,vol. 72, pp. 111- 128 ,(1987) , 10.1007/BF00044841
Christina Skarpe, Plant community structure in relation to grazing and environmental changes along a north-south transect in the western Kalahari Plant Ecology. ,vol. 68, pp. 3- 18 ,(1986) , 10.1007/BF00031575
J. C. Vogel, R. P. Ellis, A. Fuls, Photosynthetic pathways and the geographical distribution of grasses in South West Africa/Namibia. South African Journal of Science. ,vol. 76, pp. 307- 314 ,(1980)
Raphael Ben-Shahar, Changes in structure of savanna woodlands in northern Botswana following the impacts of elephants and fire Plant Ecology. ,vol. 136, pp. 189- 189 ,(1998) , 10.1023/A:1009708021735
R. J. Scholes, B. H. Walker, An African Savanna: Community and landscape pattern and change ,(1993) , 10.1017/CBO9780511565472
M. Sekhwela, D. Lamb, D. J. Yates, Woody vegetation structure and wood availability in arid and semi-arid Kalahari sand systems in Botswana Directorate of Research and Development, University of Botswana. pp. 65- 82 ,(2000)
O. A. Leistner, The plant ecology of the Southern Kalahari The plant ecology of the southern Kalahari.. ,(1900)
R. J. Scholes, B. H. Walker, An African Savanna: The key determinants: water, nutrients, fire and herbivory ,(1993) , 10.1017/CBO9780511565472
R. H. V. Bell, The Effect of Soil Nutrient Availability on Community Structure in African Ecosystems Ecological Studies. pp. 193- 216 ,(1982) , 10.1007/978-3-642-68786-0_10