Publication Date
1985
Location
Kyoto Japan
Description
A series of studies designed to clarify the characteristics of the native savanna in the Colombian Eastern Plain (Llanos Orientales) was carried out. A detailed study of population dynamics of the savanna with and without burning under different stocking rates is described. Density of vegetation in the burnt plot increased year by year, whereas that of the unburnt plots decreased year by year. After the third dry season the differences of density compared with those before the treatments were 111 % for the burnt plot and -41 % mean for the unburnt plots. The density of Trachypogon vestitus and forbs increased in the burnt plot. Since T. vestitus probably avoided the damage of fire due to the presence of underground buds, tillering was accelerated after burning. The density of Cyperaceas of other species such as Bulbostylus Janata, B. vestida, Rhychospora barbata and R. nerosa decreased possibly as a result of competition for light with the large amount of dead matters of standing crops in the unburnt plots.
Citation
Hayashi, H and Tergas, Luis E., "The Effects of Burning and Grazing on the Population Dynamics of the Native Savanna of Colombia" (1985). IGC Proceedings (1985-2023). 46.
(URL: https://uknowledge.uky.edu/igc/1985/ses6/46)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
The Effects of Burning and Grazing on the Population Dynamics of the Native Savanna of Colombia
Kyoto Japan
A series of studies designed to clarify the characteristics of the native savanna in the Colombian Eastern Plain (Llanos Orientales) was carried out. A detailed study of population dynamics of the savanna with and without burning under different stocking rates is described. Density of vegetation in the burnt plot increased year by year, whereas that of the unburnt plots decreased year by year. After the third dry season the differences of density compared with those before the treatments were 111 % for the burnt plot and -41 % mean for the unburnt plots. The density of Trachypogon vestitus and forbs increased in the burnt plot. Since T. vestitus probably avoided the damage of fire due to the presence of underground buds, tillering was accelerated after burning. The density of Cyperaceas of other species such as Bulbostylus Janata, B. vestida, Rhychospora barbata and R. nerosa decreased possibly as a result of competition for light with the large amount of dead matters of standing crops in the unburnt plots.
