Results 201 to 210 of about 6,808 (260)

Linking hydraulic strategy, drought response and carbon gain in co-existing savanna tree species. [PDF]

Tree Physiol
Wigley BJ, Waite PA, Coetsee C, Schuldt B, Higgins SI.   +4 more
europepmc   +1 more source

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The climatic sensitivity of the forest, savanna and forest–savanna transition in tropical South America

New Phytologist, 2010
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Hirota Marina, Mercedes Bustamante
exaly   +3 more sources

Allocation of phosphorus in a tropical savanna

Chemosphere, 1999
The allocation of phosphorus (P) was studied in the different components of a Trachypogon savanna ecosystem, particularly in those related to biological productivity processes. The research was based on the sequential fractionation of soil P and on the determination of P content in different plant components.
Danilo López-Hernández
exaly   +2 more sources

Biome: Tropical Savanna

2010
exaly   +2 more sources

Determinants of Tropical Savannas

1996
Tropical savannas, defined as ecosystems formed by a continuous layer of graminoids (grasses and sedges) with a discontinuous layer of trees and/or shrubs, are the most common vegetation type (physiognomy) in the tropics. Tropical savannas are found over a wide range of conditions: rainfall from approximately 200 mm to 1500 mm a year, temperature from ...
Otto T. Solbrig, Ernesto Medina, Juan F. Silva   +2 more
openaire   +1 more source

The spectral changes of deforestation in the Brazilian tropical savanna

Environmental Monitoring and Assessment, 2014
The Cerrado is a biome in Brazil that is experiencing the most rapid loss in natural vegetation. The objective of this study was to analyze the changes in the spectral response in the red, near infrared (NIR), middle infrared (MIR), and normalized difference vegetation index (NDVI) when native vegetation in the Cerrado is deforested.
Trancoso, Ralph, Sano, Edson E., Meneses, Paulo R.   +2 more
openaire   +5 more sources

Savanna–forest hysteresis in the tropics

Global Ecology and Biogeography, 2001
AbstractA simple dynamic model relating forest area in a region, its contribution to dry season precipitation and the effect on its own establishment was developed. The model equation shows hysteresis between forest and savannas as a function of imported dry season precipitation.
openaire   +1 more source

Global Resilience of Tropical Forest and Savanna to Critical Transitions

Science, 2011
Tree distributions across continents indicate three distinct stable states in tree cover―forest, savanna, and treeless.
Hirota, Marina; Holmgren, Milena; Van Nes, Egbert H.; Scheffer, Marten   +4 more
openaire   +3 more sources

Fire in Australian Tropical Savannas

1982
Savannas have been defined in many ways. In this paper Australian tropical savannas are defined as communities in which the grass component is often predominant but in which predominance may vary between grassy and woody components. The grassy-woody status is determined not only by static landscape factors, but also by the dynamic interactions of fire ...
C. J. Lacey, J. Walker, I. R. Noble
openaire   +1 more source

Mineral Nutrition: Tropical Savannas

1993
Tropical savannas are ecosystems characterized by a continuous herbaceous cover of heliophilous bunch grasses and sedges, almost exclusively with the C4 photosynthetic pathway, that show a clear seasonality related to water stress (Sarmiento 1984; Cole 1986; Frost et al. 1986). Woody species (shrubs, trees, and palms) occur in varying density depending
openaire   +1 more source