Growth and initial production of 15 tropical tree species from the Ecuadorian Amazonia with different successionel stages
Article Sidebar
Main Article Content
Abstract
Growth and production initial characteristics of 6 pioner tree species and 9 advanced successional stages tree species were determined. The 15 species are native of the Ecuadorian Amazon. They were planted in a randomized complete blocks, with two fertilizer treatments (70 days and 180 days were the time of release of nutrients) and one witness. The study site is located in Domomo, Macas, Morona Santiago, Ecuador. Plant growth (height, basal diameter) was measured 7 times during 6 months. Three seedlings partial collections were made to measure the biomass. As result, Nectandra membranaceae is one of the advanced successional species with hard adaptation for growing in broad daylight, as its survival was almost zero. Heliocarpus americanus, Pollalesta discolor and Erythrina poeppigiana were the pionner species with better growth in height, basal diameter and biomass. No significant effects were observed by fertilizer treatments on height growth, basal diameter and biomass during the first three months. The results will serve for selecting the pioneer species more susceptible to produce a dense vegetation cover on degraded soils and the tree species of advanced successional stages.
Downloads
Metrics
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
The authors who publish in Siembra know and accept the following conditions:
- Authors retain the copyright and grant Siembra the right of first publication of the work, under the Creative Commons Attribution License. Third parties are allowed to use what has been published as long as they refer to the author or authors of the work and its publication in this journal.
This content is licensed under a Creative Commons Attribution-Noncommercial 4.0 International (CC BY-NC 4.0).
- Authors maintain the copyright and guarantee Siembra the right to publish the manuscript through the channels it considers appropriate.
- Authors may establish on their own additional agreements for the non-exclusive distribution of the version of the work published in Siembra, acknowledging their initial publication in the same, such as in institutional repositories.
- Authors are authorized to disseminate their work electronically once the manuscript is accepted for publication.
References
Allegretti, M. (1990). Extractive Reserves: An alternative for reconciling development and environmental conservation in amazonia. Altrnatives to Deforestation Steps Toward Sustainable Use of the Amazon Rain Forest. New York: Columbia University Press. 252-264.
Bennett, B., & Alarcón, R. (1994). Osteophloeum Platyspermum and Virola dukei (Miristicaceae): New ly reported as hallucinogens from amazonian Ecuador. Económic Botany, 48(2), 152 - 158.
Boese, E., (1992). Actividades forestales y silviculturales en la región Amazónica ecuatoriana: Experiencias y resultados 1985 - 1990, Lumbaqui, provimcia de Sucumbíos.
Cañadas, L. (1983). El mapa bioclimático y ecológico del Ecuador, Ministerio de Agricultura y Ganadería del Ecuador. Quito, Ecuador: PRONAREG.
Fournier, F., (1978). Balance hídrico, Ecosistemas de los bosques tropicales, Informe UNESCO/PNUMA/FAO.
Graaf, N., & Poels, R. (1990). The CELOS, Management System: A polycyclic method for sustained timber productin in south american rain forest. Altrnatives to Deforestation Steps Toward Sustainable Use of the Amazon Rain Forest. New York: Columbia University Press.
Hunt, R. (1990). Basic growth analysis. Plants growth analysis for baguinnes. London Un Win Hayman.
Lamprecht, H. (1990). Silvicultura en los Trópicos. Los ecosistemas forestales en los bosques tropicales y sus especies arbóreas. Posibilidades y métodos para un aprovechamiento sostenido. Instituto de Silvicultura de la Universidad Göttigen. Cooperación técnica - República Federal de Alemania.
Peck, R. (1990). Programing agroforestry practices among small producers: The case of the Coca agroforestry proyect in amazonian Ecuador. Cap. II. Alternatives to Deforestation Steps Toward Sustainable Use of the Amazon Rain Forest. New YorK: Columbia University Press.