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Conference Paper

Nutrient retention mechanisms in tropical forests: The Amazon Caatinga, San Carlos pilot project, Venezuela

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Klinge,  Hans
Department Tropical Ecology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Citation

Herrera, R., Medina, E., Klinge, H., Jordan, C. F., & Uhl, C. (1981). Nutrient retention mechanisms in tropical forests: The Amazon Caatinga, San Carlos pilot project, Venezuela. Natural resources and the environment series, 85-97.


Cite as: https://hdl.handle.net/21.11116/0000-0004-AD88-0
Abstract
Several nutrient conserving mechanisms have been postulated and identified in
natural forest ecosystem studies carried out in San Carlos de Rio Negro, Amazonas,
Venezuela. These mechanisms are structural or functional in nature, and are related
to the characteristics of the foliage, the root system, the soil, the entire plant or the
stand. Losses from the different pathways involved in the cycling of nutrients among
ecosystem compartments are minimal. When the system is disturbed, the nutrient-
conserving mechanisms cease to function, nutrient losses are greatly increased and
the recovery of the system can be severely impaired. In order to convert tropical
forests that rely on nutrient-conserving mechanisms into sustained production
systems, there is need to compensate for the loss of nutrients and of the structures
that help retain and recycle nutrients in environments with a high potential for
leaching, such as those of much of the Amazon basin.