Coffee is traditionally grown in agroforestry systems. Shade trees in coffee plantations provide important ecosystem services, and their timber may also be a good source of income for coffee growers. However, key information on the value of shade tree timber and its potential contribution to the income of coffee growers based on empirical data is lacking. The income that could be obtained from shade trees was estimated for three coffee plantations with different shade tree species. To estimate the marketable timber volume of standing trees, allometric equations were developed. Our results showed that the value of the shade tree timber varied significantly. It represented only 2-3% of the annual coffee farm income on the coffee plantation dominated by native Inga spp. On the other hand, the plantation predominantly shaded by Eucalyptus trees had high potential annual (50-68% of plantation income) and total (92-96% of plantation income) timber value, followed by the plantation shaded predominantly by Pinus (32-49% of plantation income for annual timber volume and 89-94% of plantation income for total timber volume). It is evident that shade trees may be a good economic reserve for coffee growers when exotic Eucalyptus or Pinus tree species are planted. However, using individual-tree data, it was found that the relatively rare native shade tree Retrophyllum rospigliosii, which was found in almost all plantations, has a high timber value and a large timber supply, making it a shade species with high potential for agroforestry.
Purpose This paper aims to characterize the sexual maturation of M. flexuosa plantations in Tulumayo. Design/methodology/approach The methodology in this paper was selection of three plots in open field and usage of different densities of planting, after the maturation of the first plants, we began the quarterly evaluation. There was total 28 evaluations in seven years of age. Findings As a result, it was determined that at 12 years, the plots with lower density presented a greater number of mature individuals, with a predominance of female palms that produced an average of four bunches of fruit per year, and males five inflorescences. In addition, 15% of adult female plants went dormant, whereas males accounted for 3.4%. Reproductive cycles began in September and culminated in October of the following year, which were synchronized with rainfall. Originality/value Planting density was a determining factor in the early maturity of M. flexuosa and sustainable plantation management.
La pérdida de bosques es uno de los principales problemas ambientales en el Perú y en diversas partes del mundo, en ese sentido el presente trabajo tiene por objetivo calcular la cobertura boscosa al 2021 dentro de la provincia Leoncio Prado, ubicada en la región Huánuco, Perú. Para ello, se utilizó las imágenes Sentinel-2 que fueron clasificadas en la plataforma Google Earth Engine utilizando el algoritmo de inteligencia artificial Random Forest. Asimismo, se evaluó la exactitud temática de la clasificación resultante utilizando imágenes de alta resolución espacial Planet. Como resultados se encontró que la zona de estudio presenta 349 811,47 ha lo que representa más del 70% del área total, mientras que las áreas degradas e intervenidas suman un total de 131 392,12 ha que proceden principalmente del cambio de uso de bosque a zonas agrícolas. Respecto a las métricas que evalúan la exactitud temática de la clasificación, se encontró un valor de 0,77 en el Índice de Kappa y 89,14% de exactitud global. Por lo que se concluye que la cobertura boscosa es la de mayor predominancia en la provincia Leoncio Prado, la cual fue clasificada con alta exactitud temática.
El presente trabajo tiene como objetivo describir los eslabones de la cadena de valor de la bolaina blanca (Guazuma crinita Mart.) en la provincia Leoncio Prado, Perú. Para ello se revisó información disponible, así como visitas a campo y a instituciones para conocer la actividad forestal relacionada directamente con la bolaina blanca. Como resultado se pudo constatar que las plantaciones de bolaina blanca se vienen estableciendo utilizando métodos tradicionales de siembra, el aprovechamiento y transformación de la madera es bastante precario, mientras que la comercialización se realiza a nivel regional y nacional; sin embargo, a pesar de la poca industrialización de madera representa un gran potencial para la reactivación de la economía local postpandemia dentro de un marco normativo favorable.
El objetivo de esta investigación fue evaluar la ecoeficiencia de la municipalidad distrital José Crespo y Castillo de Perú; para ello se elaboró una línea base y la formulación e implementación de indicadores para el plan de ecoeficiencia. La estandarización de los datos se realizó mediante la aplicación de máximos y mínimos. La ponderación de indicadores se estableció mediante el método Delphi y la validación de instrumentos fue por expertos. La elaboración del biograma se realizó en función a los índices de ecoeficiencia. Se obtuvieron resultados mayores a lo esperado en la etapa de planificación. También se conoció el estado en el que se encuentra la municipalidad distrital José Crespo y Castillo por medio del biograma, el cual resultó no ecoeficiente e inestable.
The establishment of natural protected areas is one of the most effective strategies to conserve forests and their biodiversity; however, the uncontrolled advance of deforestation resulting from the change of use to expand the agricultural frontier has become a threat to these intangible areas. This research aimed to analyze the dynamics of forest cover in Parque Nacional Tingo María (PNTM) and its buffer zone (ZA) located in the high jungle of the Huánuco region of Peru. The main input was Sentinel-2 images that were classified using the Random Forest algorithm. As a result, coverage maps were obtained for the study area corresponding to the years 2017, 2019, 2021 and 2023, achieving considerable thematic accuracy. During the evaluation periods, the rates of change from forest to non-forest within the PNTM presented low values -0.26% (2017 - 2019); -1.24% (2019 - 2021) and -0.02% (2021 - 2023). While the forests in the ZA have undergone a dynamic transition, with rates of change of -2.97%; -4.39% and -1.15% derived from land use change. The landscape metrics suggest that the forests of the PNTM are moderately fragmented, and the forests of the ZA are strongly fragmented, which leads to the conclusion that the protected natural area has fulfilled its objective of maintaining vegetation cover.
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