Ciclos bioquímicos en un ecosistema forestal de los Andes Occidentales de Venezuela, 2: Producción y descomposición de los residuos vegetales.
Litter production (tree stands, each 12 collectors; sampling every two weeks) and litter decomposition (samples of leaves and branches exposed to enviroment, collection every two months) were studied in a montane forest ecosystem of the Venezuelan Andes. The total litter production reached an avera...
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| Formato: | Artículo |
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Instituto Interamericano de Cooperación para la Agricultura (IICA)
2022
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| Acceso en línea: | https://repositorio.catie.ac.cr/handle/11554/12153 |
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RepoCATIE121532022-11-29T18:01:17Z Ciclos bioquímicos en un ecosistema forestal de los Andes Occidentales de Venezuela, 2: Producción y descomposición de los residuos vegetales. Biochemical cycles in a forest ecosystem in the Western Andes of Venezuela, 2: Production and decomposition of plant residues. Fassbender, H.W Grimm, U. ECOSISTEMA VENEZUELA ECOSYSTEMS VENEZUELA Sede Central Litter production (tree stands, each 12 collectors; sampling every two weeks) and litter decomposition (samples of leaves and branches exposed to enviroment, collection every two months) were studied in a montane forest ecosystem of the Venezuelan Andes. The total litter production reached an average of 6.97 Oa per year and was distributed as follows: leaves 3.38 t/ha per year = 48%, branches 2.27 t/ha per year = 33%, flowers and fruits 1.09 t/ha per year =16%, epiphytic plants 0.23 t/ha per year = 3%. The variation of coefficients of leaves, flowers and fruits were low (14 and 26% ) and that for branches was high (64%). The annual renewal of leaf-biomass reached 73%. The litter production in form of roots and dead wood yielded 14 and 4.8 t/ha/year. The transfer of chemical elements with litter depends on the specific soil conditions For N, P and K, values of 69.4 and 33 kg/ha/year were recorded. The decomposition of litter is linear. Total decomposition of leaf litter occurs after 20 months exposition. Branches require 12 1/2 years to disappear. A coefficient of organic matter transformation according to Jenny was calculated and compared with other tropical forest ecosystems. 2022-11-28T22:41:25Z 2022-11-28T22:41:25Z 1981-01 Artículo https://repositorio.catie.ac.cr/handle/11554/12153 openAccess es Turrialba; Vol. 31, no. 1 10 páginas application/pdf Instituto Interamericano de Cooperación para la Agricultura (IICA) |
| institution |
Centro Agronómico Tropical de Investigación y Enseñanza |
| collection |
Repositorio CATIE |
| language |
Español |
| topic |
ECOSISTEMA VENEZUELA ECOSYSTEMS VENEZUELA Sede Central |
| spellingShingle |
ECOSISTEMA VENEZUELA ECOSYSTEMS VENEZUELA Sede Central Fassbender, H.W Grimm, U. Ciclos bioquímicos en un ecosistema forestal de los Andes Occidentales de Venezuela, 2: Producción y descomposición de los residuos vegetales. |
| description |
Litter production (tree stands, each 12 collectors; sampling every two weeks) and litter decomposition (samples of leaves and branches exposed to enviroment, collection every two months) were studied in a montane forest ecosystem of the Venezuelan Andes.
The total litter production reached an average of 6.97 Oa per year and was distributed as follows:
leaves 3.38 t/ha per year = 48%,
branches 2.27 t/ha per year = 33%,
flowers and fruits 1.09 t/ha per year =16%,
epiphytic plants 0.23 t/ha per year = 3%.
The variation of coefficients of leaves, flowers and fruits were low (14 and 26% ) and that for branches was high (64%).
The annual renewal of leaf-biomass reached 73%. The litter production in form of roots and dead wood yielded 14 and 4.8 t/ha/year.
The transfer of chemical elements with litter depends on the specific soil conditions For N, P and K, values of 69.4 and 33 kg/ha/year were recorded. The decomposition of litter is linear. Total decomposition of leaf litter occurs after 20 months exposition. Branches require 12 1/2 years to disappear. A coefficient of organic matter transformation according to Jenny was calculated and compared with other tropical forest ecosystems. |
| format |
Artículo |
| author |
Fassbender, H.W Grimm, U. |
| author_facet |
Fassbender, H.W Grimm, U. |
| author_sort |
Fassbender, H.W |
| title |
Ciclos bioquímicos en un ecosistema forestal de los Andes Occidentales de Venezuela, 2: Producción y descomposición de los residuos vegetales. |
| title_short |
Ciclos bioquímicos en un ecosistema forestal de los Andes Occidentales de Venezuela, 2: Producción y descomposición de los residuos vegetales. |
| title_full |
Ciclos bioquímicos en un ecosistema forestal de los Andes Occidentales de Venezuela, 2: Producción y descomposición de los residuos vegetales. |
| title_fullStr |
Ciclos bioquímicos en un ecosistema forestal de los Andes Occidentales de Venezuela, 2: Producción y descomposición de los residuos vegetales. |
| title_full_unstemmed |
Ciclos bioquímicos en un ecosistema forestal de los Andes Occidentales de Venezuela, 2: Producción y descomposición de los residuos vegetales. |
| title_sort |
ciclos bioquímicos en un ecosistema forestal de los andes occidentales de venezuela, 2: producción y descomposición de los residuos vegetales. |
| publisher |
Instituto Interamericano de Cooperación para la Agricultura (IICA) |
| publishDate |
2022 |
| url |
https://repositorio.catie.ac.cr/handle/11554/12153 |
| work_keys_str_mv |
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| _version_ |
1808117611164073984 |