caa a22 4500 386380716 CHVBK 20180307112040.0 cr unu---uuuuu 161130e198911 xx s 000 0 eng 10.1017/S0266467400003862 doi S0266467400003862 pii (NATIONALLICENCE)cambridge-10.1017/S0266467400003862 Environmental factors affecting physiognomic and floristic variation in an area of cerrado in central Brazil [Elektronische Daten] Cerrado is a species-rich savanna-like vegetation that covers a large area in central Brazil. Soil, and particularly soil fertility, is considered to be the major factor determining the wide and diverse physiognomic-floristic gradients encountered within cerrado vegetation. To describe the vegetational variations within a cerrado in southern Mato Grosso state (15° 21'S, 55° 49'W), a 1 ha transect was located to pass through an interfluvial cerrado and climb a steep talus slope. The vegetational and environmental variations are described by means of field classification, direct gradient analysis and reciprocal averaging ordination. The effects of differences in ground water regime in the interfluvial cerrado and differences in inclination with associated rockiness in the talus cerrado are related to the vegetational variations. As the soils are very similar in texture and in the majority of chemical properties, the role of the above environmental factors was more easily distinguished. In the interfluvial cerrado, the vegetation variations are probably related to the seasonal fluctuation in water table level. Copyright © Cambridge University Press 1989 Brazil nationallicence cerrado vegetation nationallicence ground water nationallicence Neotropics nationallicence savanna nationallicence soil nationallicence topography nationallicence Oliveira-Filho Ary Teixeira De Departamento de Ciências Florestais, Escola Superior de Agricultura de Lavras, 37200 Lavras, MG, Brazil Shepherd George John Departamento de Botânica, Universidade Estadual de Campinas, 13081 Campinas, SP, Brazil Martins Fernando Roberto Departamento de Botânica, Universidade Estadual de Campinas, 13081 Campinas, SP, Brazil Stubblebine William Henry Departamento de Botânica, Universidade Estadual de Campinas, 13081 Campinas, SP, Brazil Journal of Tropical Ecology Cambridge University Press 5/4(1989-11), 413-431 0266-4674 5:4<413 1989 5 TRO https://doi.org/10.1017/S0266467400003862 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0266467400003862 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Oliveira-Filho Ary Teixeira De Departamento de Ciências Florestais, Escola Superior de Agricultura de Lavras, 37200 Lavras, MG, Brazil NATIONALLICENCE 700 1- Shepherd George John Departamento de Botânica, Universidade Estadual de Campinas, 13081 Campinas, SP, Brazil NATIONALLICENCE 700 1- Martins Fernando Roberto Departamento de Botânica, Universidade Estadual de Campinas, 13081 Campinas, SP, Brazil NATIONALLICENCE 700 1- Stubblebine William Henry Departamento de Botânica, Universidade Estadual de Campinas, 13081 Campinas, SP, Brazil NATIONALLICENCE 773 0- Journal of Tropical Ecology Cambridge University Press 5/4(1989-11), 413-431 0266-4674 5:4<413 1989 5 TRO CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge