A Study in an Area of Transition Between Seasonally Dry Tropical Forest and Mesotrophic Cerradão, in Mato Grosso Do Sul, Southwestern Brazil

Abstract

This study describes the tree vegetation and soils occurring in a seasonally dry tropical forest (SDTF) and mesotrophic cerradão transition in southwestern Brazil. All trees ≥ 5 cm diameter were measured in 20 plots of 20 × 25 m, 10 in SDTF, and 10 in mesotrophic cerradão. Ten soil samples of 0−20 cm depth were made per plot and mixed in plot groups to produce two composite samples. A total of 71 species was recorded. Anadenanthera colubrina had the highest importance values in both formations. Differences in soil fertility were found between SDTFs (eutrophic soils) and mesotrophic cerradão (mesotrophic soils). A non-metric multidimensional scaling and cluster analysis confirmed the soil fertility segregation, and also showed an agreement between soil fertility and variance in species composition gradients. The mesotrophic cerradão showed higher species richness since it also includes many species typical of more dystrophic and open forms of Cerrado.

Relações espaciais entre Ananas ananassoides (Bromeliaceae) e Tachigali vulgaris (Fabaceae) influenciando a estrutura florestal na transição Amazônia/Cerrado no Brasil

“…In this case, the morphophysiological adaptations of species, such as leaf stiffness and CAM (Medina et al 1993;Crayn et al 2015), ensure mechanical support and resistance to water stress and high temperatures, favoring their occupation in savannic and forest areas (Proença and Sajo 2007) and contributing to the high abundance found in the present study. On the other hand, the abundance values found for T. vulgaris are lower than in other studies conducted in savanna woodlands with inclusion limits lower than those used in the present study (≥5 cm DBH) (Marimon-Junior and Haridasan 2005;Araújo et al 2011;Bueno et al 2013). …”

Effects of Quaternary climatic fluctuations on the distribution of Neotropical savanna tree species

“…Cactaceae) than those in typical cerrado vegetation, which experiences frequent and more intense fires (Pennington et al 2000(Pennington et al , 2009. Meanwhile, mesotrophic cerradão is an almost closed forest with a canopy cover of 50-90%, with trees often growing to 8-12 m (casting a considerable shade so that the ground layer is much reduced), and including a blend of species from both typical cerrado vegetation and seasonally dry tropical forests (Ratter 1973, 1992, Ratter et al 1977, 1978a, Furley and Ratter 1988, Oliveira-Filho and Fontes 2000, Oliveira-Filho and Ratter 2002, Bueno et al 2013. Semideciduous forests are found in more humid areas than typical cerrado vegetation, such as along river courses (i.e.…”

Flora Arbórea Do Cerrado De Mato Grosso Do Sul

“…Mart., e a muito baixa ocorrência de espécies nos cerrados distróficos da província do Sul. A tendência de certas espécies no Cerrado estarem associadas com solos mesotróficos tem sido bem documentada (ver, por exemplo, Ratter et al 1973, 1977, Furley & Ratter 1988, Bueno et al 2013b). Ainda, de acordo com Ratter (comunicação pessoal), grande parte dos cerradões levantados no estado do MS apresentam tipologia mesotrófica.…”

“…Lista das famílias e espécies arbóreas registradas para o Cerrado do estado de Mato Grosso do Sul. * Espécies listadas como dominantes do Cerrado (Bridgewater et al 2004); ** espécies características de solo férteis (Ratter et al 1977, 2011, Furley & Ratter 1988, Bueno et al 2013b.…”

“…Lodd. ocorre como uma faixa de transição em solos intermediários de fertilidade, isto é, entre cerradão distrófico ou cerrado stricto sensu com a Floresta Estacional Decidual (Mata Seca) (Ratter et al 1977, Furley & Ratter 1988, Bueno et al 2013b. Em Porto Murtinho esse tipo de formação ocorre em morros com afloramento rochoso, lado a lado com as florestas estacionais deciduais e as formações chaquenhas.…”