Estructura y composición florística de bosques asociados a especies de Theobroma en la Amazonía colombiana

Molina, Jairo Rojas; Calderón, Pablo Fernando Ramos; Zabala, Mauricio Castro; Moreno, Allende Pesca; Valenzuela, Yeraldine Vargas; Pachajoa, Laura Escobar

doi:10.29298/rmcf.v12i68.1078

Cited by 3 publications

(4 citation statements)

References 19 publications

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“…According to the Simpson index, AFSs and CMC represent a medium level, while the forest represents a high dominance of species, a characteristic behavior of tropical forests in the Amazon region, due to the exuberant vegetation they have. In tropical humid forests of Colombia, the same pattern of behavior is reported for the Margalef (ranges from 7.3 to 9.7), Shannon (from 3.2 to 3.6), and Simpson indices (from 0.95 to 0.97) [50], just like what was reported in a tropical forest of Brazil, according to the Shannon index (3.57) [51]. As expected, the findings of the diversity indices are representative and this demonstrates the importance and richness of the Amazonian secondary forests, which will be increased if they are taken care of.…”

Section: Floristic Compositionsupporting

confidence: 67%

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Biodiversity and Carbon Sequestration in Chakra-Type Agroforestry Systems and Humid Tropical Forests of the Ecuadorian Amazon

Huera-Lucero,

Lopez-Piñeiro,

Torres

et al. 2024

Forests

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Currently, there are several studies related to climate change, carbon sequestration, and floristic composition in different scenarios and land uses. In this context, the objective of this research is: (a) to characterize biodiversity based on ecological indicators and diversity indices and (b) to evaluate carbon sequestration in different components of chakra-type agroforestry systems and secondary tropical humid forests of the Ecuadorian Amazon. For this, temporary sampling plots of 1600 m2 are established on the properties to be investigated. The study found that the structural characteristics and floristic composition vary according to the forest arrangement and the management system. Secondary forests are the most diverse, according to the Shannon (3.49), Simpson (0.96), and Margaleft (9.34) diversity indices, in addition to having the largest carbon stores with 233 (Mg C ha−1), followed by agroforestry systems in association with timber trees (TAFS) and fruit trees (FAFS) with 97.8 and 95.1 (Mg C ha−1) respectively, and cocoa monoculture (CMC) with 90.4 (Mg C ha−1). These results demonstrate the importance of conserving the remnants of tropical forests that still remain, due to the diversity of species, ecosystem services, and the total carbon they contain, as well as the agroforestry systems (AFS), systems analogous to forests, which are gradually becoming important management systems, especially if they are associated with potential species to sequester carbon, such as those documented in this and several other studies that seek solutions to global climate change.

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Section: Floristic Compositionsupporting

confidence: 67%

“…Are among the species with the greatest potential to store biomass [36]. Studies carried out in Colombian forests (tropical humid forest) report Fabaceae, Myristicaceae, Malvaceae, and Burseraceae as the most important families [50]. These families are also representative of the forests recorded in this study.…”

Section: Floristic Compositionsupporting

confidence: 57%

Biodiversity and Carbon Sequestration in Chakra-Type Agroforestry Systems and Humid Tropical Forests of the Ecuadorian Amazon

Huera-Lucero,

Lopez-Piñeiro,

Torres

et al. 2024

Forests

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“…En las cinco fincas encuestadas por municipio se delimitó una parcela de muestreo de 1000 m 2 , en la cual se realizó el inventario de los individuos de las especies asociadas al cultivo de cacao registrando la circunferencia al pecho (CAP) de los individuos con medida superior a 31.4 cm, a partir de lo cual se determinó el diámetro al pecho (DAP); a su vez, se registró la altura total (m) y el área de la copa (m 2 ), acorde a la metodología empleada por Rojas et al (2021). Simultáneamente se tomaron muestras vegetales de árboles y arbustos, que se preservaron y enviaron al laboratorio de botánica del herbario de la Universidad Pedagógica y Tecnológica de Colombia en donde se realizó la determinación taxonómica.…”

Section: Caracterización Florísticaunclassified

CARACTERIZACIÓN DE SISTEMAS AGROFORESTALES CON CACAO (Theobroma cacao L) EN TRES MUNICIPIOS DEL DEPARTAMENTO DE BOYACÁ, COLOMBIA

Ruiz-Russi,

Escobar-Pachajoa,

Montealegre Bustos

et al. 2023

Trop Subtrop Agroecosyst

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Background: In Colombia, most traditional cocoa crops are developed under agroforestry systems (SAF), associating shrubs and trees that provide shade for cocoa. They generate additional economic income and various ecosystem services. Objective: To characterize agroforestry systems with cocoa in three municipalities in eastern Boyacá (Miraflores, Berbeo, and Páez) belonging to the province of Lengupá. Methodology: A semi-structured interview was applied in 15 selected farms to learn about socioeconomic aspects, agronomic management of cocoa, and the use and management of trees. The botanical and structural composition and the Simpson (S), Shannon-Weaver (H´), and Jaccard (J) plant diversity indices were determined. Results: Cocoa producers in that region develop smallholder production under agroforestry systems with irregular tree species distribution, which are used for wood, firewood, shade, and food. At the regional level, 189 forest individuals accompanying cocoa were found, grouped into 18 families, 17 genera, and 28 species. The municipality of Berbeo presented the highest abundance (73 individuals), followed by Miraflores (67) and finally, Páez (49). In Berbeo, the species with a high importance value index (IVI) were Ceiba pentandra and Cedrela odorata (35 and 33, respectively), in Miraflores Trichanthera gigantea and Persea americana (44 and 42) and, in Páez Cedrela odorata (104). Implications: The selective felling of forests in SAF with cocoa, which intensifies the production of wood, has favored the loss of diversity; Therefore, the floristic composition studies serve as a basis to identify other potential forest species for the establishment of SAF to promote the diversification of the productive system and contribute to its resilience and sustainability. Conclusion: The agroforestry systems with cocoa in three municipalities in eastern Boyacá presented a differential composition and diversity, marked by a lower diversity in the municipality of Páez, where the species C. odorata had greater representation, related to the affinity of farmers for timber species of commercial interest.

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“…Para el censo de individuos, se escogieron aquellos ejemplares con un diámetro a la altura del pecho (DAP) superior o igual a 10 cm (Gentry, 1982;Guiracocha et al, 2001;Rojas-Molina et al, 2021). A los individuos de cada unidad de muestreo se les midió el DAP a 1,3 m de distancia del suelo y se les estimó la altura, en metros; así mismo, se indagó con el productor sobre los usos asignados a las especies identificadas, la persistencia o fenología de las hojas (caducifolia, perennifolia, semiperenne) y el hábito de crecimiento.…”

Section: Muestreounclassified

Composición florística y estructura de las especies de sombrío en los sistemas agroforestales de cacao (Theobroma cacao L.) en la subregión de los Montes de María, Bolívar-Colombia

Matute¹

2022

Intropica

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Con el fin de conocer la composición florística y la estructura de sistemas agroforestales de cacao en la subregión de los Montes de María, se realizó una caracterización de las especies de sombrío en 60 plantaciones de cacao en los municipios de El Carmen de Bolívar, San Jacinto y San Juan Nepomuceno. En las 15 hectáreas muestreadas, se hallaron 26 especies de sombrío distribuidas en 14 familias y 1302 individuos. La densidad promedio fue de 87 individuos por hectárea. El 42 % de estas especies son caducifolias, el 27 % perennifolias y el 31 % semiperennes. En cuanto a origen y estado de conservación, el 77 % son especies nativas, el 19 % exóticas y el 4 % introducidas y naturalizadas; así mismo, se encontraron siete especies con algún grado de conservación. De acuerdo con el índice de valor de importancia, las especies más relevantes fueron Gliricidia sepium y Persea americana, mientras que las familias más destacadas fueron Fabaceae y Lauraceae. En cuanto a la estructura, se encontró que el mayor número de individuos (592) correspondió a plantas cuyo diámetro a la altura del pecho osciló entre 16,01 y 32 cm, mientras que, en lo que respecta a la altimetría, el mayor número de ejemplares (190) se ubicó en el intervalo 12,01-15 m. En cuanto a área basal, las especies de sombrío significaron un total de 270,01 m2 (18 m2/ha). A nivel regional, el índice de Shannon arrojó una diversidad media (2,6); además, el valor del índice de Pielou (0,8) indicó una homogeneidad relativamente alta, mientras que el índice de Simpson (0,11) reflejó baja dominancia. Las curvas de acumulación de especies arrojaron una completitud por encima del 85 % en los estimadores no paramétricos, exceptuando el de Jacknife-2, que registró un valor de 83,2 %, sugiriendo una cobertura muestral satisfactoria.

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Estructura y composición florística de bosques asociados a especies de Theobroma en la Amazonía colombiana

Cited by 3 publications

References 19 publications

Biodiversity and Carbon Sequestration in Chakra-Type Agroforestry Systems and Humid Tropical Forests of the Ecuadorian Amazon

Biodiversity and Carbon Sequestration in Chakra-Type Agroforestry Systems and Humid Tropical Forests of the Ecuadorian Amazon

CARACTERIZACIÓN DE SISTEMAS AGROFORESTALES CON CACAO (Theobroma cacao L) EN TRES MUNICIPIOS DEL DEPARTAMENTO DE BOYACÁ, COLOMBIA

Composición florística y estructura de las especies de sombrío en los sistemas agroforestales de cacao (Theobroma cacao L.) en la subregión de los Montes de María, Bolívar-Colombia

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