Study area description
The area includes the National Natural Park Chingaza and the paramos of Cruz Verde, Monserrate and Guasca.
In Chingaza the altitudinal range of the data varies from 2290m.a.s.l up to 3800m.a.s.l. In Cruz Verde from 3300m.a.s.l. up to 3450m.a.s.l., in Monserrate from 3000m.a.s.l. up to 3250m.a.s.l. and in Guasca only at 3300m.a.s.l.
With the variation in altitude among others, diverse biomass were taken into account like wetlands (bogs), zonal paramo species and Andean forest species. There is a big difference between the vegetation in the paramos located northwest from Bogota from those located to the eastern.
In the PNN Chingaza the vegetation of the areas studied represent species of quite high environmental humidity and therefore is Chingaza one of the main water provider fro the inhabitants of Bogota.
At the time of the studies the agricultural border in the paramos was increasingly moving up to elevated grounds, then studies about the ecosystems of this areas were required by managers and policy makers.
The method used for paramo vegetation sampling was based on the Braun-Blanquet or Zürich-Montpellier schools which take the relevé as the main sampling unit. The releves were made of zonal and azonal paramo vegetation. The Braun-Blanquet method is based on dominant species that are grouped in associations and then at a higher level in alliances. This is the standard methodology used in Europe, South Africa, United States, Japan and in the world in general. One of the final goals of the methodology mainly in Europe is to get to nature conservation, which is also the goal in the Colombian paramos.
Rangel, O. and Ariza C., 2000.
Literature study funded by Instituto Alexander von Humboldt, Universidad Nacional de Colombia, Instituto de Ciencias Naturales (ICN)-Universidad Nacional De Colombia.
Dierikx L. and M. Kaandorp, 1986 funded by
University of Amsterdam (Werkgroep Studiereizen Ontwikkelingslanden (WSO), The Hague and the Vakgroep Bijzondere Plankunde.
Sturm H., and O. Rangel 1985, funded by:
Universidad Nacional de Colombia
Insituto de Ciencias Naturales (ICN) from Universidad Nacional de Colombia
Empresa de Acueducto y Alcantarillado de Bogota
The German Academic Exchange Service (DAAD)
Fondo Colombiano de Insvestigaciones Cientificas (COLCIENCIAS)
Hugo de Vries Laboratory (IBED-University of Amsterdam)
Sanchez R. and O. Rangel, 1990 funded by:
Estudio de la Bioflora de los Páramos de los alrededores de Bogota project. Instituto de Ciencias Naturales (ICN), Universidad Nacional de Colombia.
M.L. Becking and J.J. Smeets, 1989 (part of ECOANDES project see at the end funding information)
Vargas, O and D. Rivera, 1991. Funded by
Instituto Colombiano de la Ciencia y Tecnologia (COLCIENCIAS) - project No. 1203-05-013-87).
ECOANDES project funded by:
Insituto geografico "Agustin Codazzi" (Colombia), Insituto de Ciencias Naturales-ICN from Universidad Nacional de Colombia, Hugo de Vries Laboratory (IBED-University of Amsterdam) and Netherlands Foundation for the Advancement of Tropical Research-WOTRO (Grant No. W84-188).