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1
tesis de grado
Pattern Recognition applications deal with ever increasing datasets, both in size and complexity. In this work, we propose and analyze efficient algorithms for the Optimum-Path Forest (OPF) supervised classifier. This classifier has proven to provide results comparable to most well-know pattern recognition techniques, but with a much faster training phase. However, there is still room for improvement. The contribution of this work is the introduction of spatial indexing and parallel algorithms on the training and classification phases of the OPF supervised classifier. First, we propose a simple parallelization approach for the training phase. Following the traditional sequential training for the OPF, it maintains a priority queue to compute best samples at each iteration. Later on, we replace this priority queue by an array and a linear search, in the aim of using a more parallel-friendl...
2
artículo
Publicado 2022
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Given the increasing speed of deforestation in the Amazonia and the problems faced by local communities and indigenous people who depend on forestry resources, the need for sustainable and collaborative forest management is evident. This essay evaluates the extent to which community-based conservation strategies could be framed into the social innovation approach, based on the experience of Community Forest Management in Callería Native Community (Ucayali, Peru). To address this purpose, different academic sources on Community Forest Management experiences within and outside the Amazon region and the case study itself were consulted, as well as other sources referring to the concepts of conservation, socio-ecological systems, governance of the commons and social innovation. The conclusion of this essay is that Community Forest Management could be largely framed as a solution within a so...
3
artículo
Publicado 2022
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Given the increasing speed of deforestation in the Amazonia and the problems faced by local communities and indigenous people who depend on forestry resources, the need for sustainable and collaborative forest management is evident. This essay evaluates the extent to which community-based conservation strategies could be framed into the social innovation approach, based on the experience of Community Forest Management in Callería Native Community (Ucayali, Peru). To address this purpose, different academic sources on Community Forest Management experiences within and outside the Amazon region and the case study itself were consulted, as well as other sources referring to the concepts of conservation, socio-ecological systems, governance of the commons and social innovation. The conclusion of this essay is that Community Forest Management could be largely framed as a solution within a so...
4
artículo
Publicado 2024
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The Ecuadorian Amazon region is permanently subject to deforestation processes and in parallel to the implementation of agricultural, and livestock management systems that can affect soil quality. This study assessed the effect of different land use types on soil quality using the Integrated Soil Quality Index (SQI) and minimum indicators. To do this, it considers representative soil samples, 4 types of land use, and a productive landscape in the province of Pastaza. The land use types evaluated were sugarcane (SC), agrosilvopastoral System (ASPS) silvopastoral timber system (SSTT), and secondary forest (SF). Land use type had significant effects on some soil properties and, therefore, on soil quality. The soil quality index was developed using BD, Ca+Mg/K, and SOM which had the highest weighting values, suggesting a higher contribution to the final SQI. The Soil...
5
artículo
Publicado 2021
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This work was supported by a CONCYTEC (Peru) -World Bank grant (Contract 011-2019-FONDECYT-BM-INC-INV). In Huayopata we thank the Cuba and Povea families for their hospitality and help during field work.
6
artículo
Leishmaniasis is part of a group of diseases called Neglected Tropical Diseases (NTDs) that affects poor and forgotten communities and reports more than 5,000 cases in regions like Brazil, Peru, and Colombia being categorized as endemic in these. In this study, we present a machine-learning model (Random Forest) to predict cases in the future and predict possible outbreaks using meteorological and epidemiological data of the province of la Convencion (Cusco - Peru). Understanding how climate variables affect leishmaniasis outbreaks is an important problem to help people to perform prevention systems. We used several techniques to obtain better metrics and improve our model performance such as synthetic data and hyperparameter optimization. Results showed two important climate factors to analyze and no outbreaks.
7
artículo
Publicado 2025
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Forest volume modeling plays a fundamental role in forest inventory, biomass estimation, and the sustainable management of timber resources. In the Amazon region of Peru, native species such as Calycophyllum spruceanum and Cedrelinga cateniformis hold high ecological and commercial value, yet remain understudied in terms of volumetric estimation. This study aimed to develop and evaluate volumetric models for both species across three ecological zones—humid forest, very humid forest, and dry forest—representing the environmental diversity of the northeastern Peruvian Amazon. A total of 18 volumetric models were fitted for each species and site condition using linear regression techniques. Model performance was assessed through adjusted coefficient of determination (R²adj), root mean square error (RMSE), mean absolute error (MAE), Akaike Information Criterion (AIC), and diagnostic ana...
8
Comprende conceptos básicos para el sistema de información forestal, marco teórico, descripción y estructura del sistema, necesidades de información, medios de difusión, servicios de información y funciones del sistema. el sistema manejara información de todo el Sector Forestal, la cual debido a la complejidad en el contexto geográfico nacional, plantea la adopción de una estructura descentralizada, de manera que no funcione en un solo lugar o institución sino, que permita integrar sistemas de otras instituciones para el flujo de información. El sistema proveerá información actualizada del Sector Forestal, en base de ocho áreas temáticas definidas, las cuales son: 1. Recursos del bosque y arbóreos, 2. Diversidad biológica y patrimonio natural, 3. Función protectora y ambiental de los recursos del bosque, 4. Función productiva de los bosques, 5. Contribución económic...
9
tesis de grado
Publicado 2011
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Con la finalidad de facilitar la planificación y toma de decisiones para el manejo adecuado del Centro de Investigación y Capacitación Forestal (CICFOR-Macuya) se realizó una base de datos geográficos. El diseño de investigación fue no experimental, la población estuvo constituida por los bosques de la región Ucayali y la muestra quedó compuesta por el área del CICFOR-Macuya. La metodología consistió en digitar los mapas de clasificación forestal y clasificación de las tierras por capacidad de uso mayor de la ONERN (1983), geo-procesar las imágenes satelitales Shuttle Radar Topography Mission (SRTM) y ASTER GDEM para obtener la red hidrográfica, recolectar información In situ de las unidades de investigación y determinar las clases fisonómicas utilizando imágenes satelitales Landsat-7 (resolución de 30m, 2000) y SOPT (resolución de 0.37m, 2005).Como resultado se ti...
10
informe técnico
Publicado 1985
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Apoyado por el Proyecto especial de Administración de Suelos Tropicales PL480, el Proyecto IEE y el Soil Management Collaborative Research Support Program TROPSOILS de la Agencia para el Desarrollo Internacional.
11
artículo
Publicado 2024
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Objective Eating disorders in adolescents have been a recurring issue within our society, significantly impacting their mental and physical well-being. This study aims to implement a predictive analysis model based on machine learning and the EDI-3 evaluation method to forecast eating disorders (ED) in adolescents. Method Using the machine learning tool with the Random Forest algorithm and the Eating Disorder Inventory-3 (EDI-3) assessment method, a dataset of information was gathered from a sample of 500 adolescent students. This dataset will contribute to the training of the predictive model, enabling it to identify patterns of eating behaviors in end-users. Results Through data cleaning of the final dataset, 70% of the information was utilized for training the predictive model, and 30% was allocated for subsequent validation. This approach yielded an effectiveness rate of 92.27% upon ...
12
artículo
Publicado 2020
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Small-scale fishing, such as that of the Tahuayo river basin (CRT) has been little studied despite its importance as a protein supply for the region. This article presents the fisheries' main ecological features in the CRT based on of an analysis of fish landings. Between August 2016 and July 2017, the richness and composition of species, biomass and catches per unit of effort (CPUE) were evaluated, by hydrological periods, aquatic environments and communities. The captures presented 62 species, grouped into 23 families and 7 orders, with the Pimelodidae family being the most diverse (12 species). Species richness was very similar between hydrological periods and between aquatic environments. The total landing amounted to 13,805.38 kg, where 17 species represented 80.5% of the biomass. More than 50% of the biomass was landed in periods of...
13
artículo
Publicado 2024
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The objective of this reflection article is to account for the complexity of the approach to forest bioethics among the actors involved in the Peruvian Amazon in a context dominated by an anthropocentric perspective and the neoliberal capitalist system. For this purpose, bibliographic research was carried out and complemented by the discussions generated around the forestry philosophy cycle developed by Forest Fridays, the Peruvian virtual training space for forestry engineers, between August and September 2022. From the results of the reflection, it is concluded that the approach to forest bioethics in the Peruvian forestry sector is incipient, made difficult by a strongly sectoral, disciplinary framework marked by the development paradigm based on neoliberal capitalism. Complexity helps to have a much broader vision and inscribes it in the current challenges of searching for alternativ...
14
artículo
Publicado 2021
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This research was supported by Consejo Nacional de Ciencia, Tecnolog?a e Innovaci?n Tecnol?gica-CONCYTEC, under Grant 382-2019-FONDECYT-DE; Fondo Nacional de Desarrollo Cient?fico, Tecnol?gico y de Innovaci?n Tecnol?gica [382-2019-FONDECYT]; We thank the ?Servicio Nacional Forestal y de Fauna Silvestre? and the ?Servicio Nacional de ?reas Naturales Protegidas por el Estado? for providing authorizations for research under R.D.G. No. 037-2017-SERFOR/DGGSPFFS and R.D. 009-2018-SERNANP-DGANP, respectively. Likewise, we are grateful to Wendy Carolay Navarro Romo, Ciro Ricardo Paredes Huam?n (Negrito) and Jimy Ronie Llacuachaqui Rodr?guez (Timys) for contributing to field work and making it so much fun.
15
artículo
Publicado 2021
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Polylepis forests are one of the most threatened high Andean ecosystems, with 15 species and eight subspecies being categorized as critically endangered, vulnerable or near threatened by IUCN. However, their conservation status is poorly evaluated and could be outdated. As a case study, we evaluated Polylepis flavipila, a species endemic to the Peruvian central Andes, that is categorized as Vulnerable in Peru and is not mentioned in the Global Threatened Species Red List. We used two methods to categorize P. flavipila: (1) a species-level assessment using criteria proposed by IUCN and (2) a population-level assessment of four forests using the more specific criteria proposed by Navarro and collaborators. We recorded 350 relicts of P. flavipila forests as identified from herbariums and other sources. Forest cover was reduced 53% over 45 years as evaluated using satellite images from 1975 ...
16
informe técnico
Publicado 1980
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Propone, en el primer tomo, la reforestación del altiplano puneño sobre bases técnicas y con proyecciones a largo plazo, a la vez de fomentar el desarrollo socio-económico del área y mejorar las condiciones ecológicas así como describir el uso de las tierras según mayor capacidad - por medio de su adecuada clasificación. El segundo tomo, presenta un resumen de la evaluación de plantaciones para el departamento del Cuzco y con resultados a nivel de distritos y provincias, cuya formaciones ecológicas aptas para el desarrollo del Eucaliptus globulus o Pinus radiata.
17
artículo
Publicado 2019
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La biomasa forestal es un indicador esencial para el seguimiento de los ecosistemas y el clima de la Tierra. Es una aportación fundamental para la contabilidad de los gases de efecto invernadero, la estimación de las pérdidas de carbono y la degradación de los bosques, la evaluación del potencial de las energías renovables y el desarrollo de políticas de mitigación del cambio climático, como la REDD+, entre otras. La cartografía de la biomasa aérea (BSA) de pared a pared es ahora posible gracias a la teledetección por satélite (RS). Sin embargo, los métodos de RS requieren datos in situ existentes, actualizados, fiables, representativos y comparables para su calibración y validación. Aquí presentamos la iniciativa del Sistema de Observación Forestal (FOS), una cooperación internacional para establecer y mantener una base de datos global de biomasa forestal in situ. Las...
18
libro
Publicado 2009
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Investigación realizada en el marco del Proyecto Modelo de Gestión Comunal Sostenible de Bosques Inundables en la AmazonÍa Andina Peruana
19
artículo
Publicado 2022
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Given the increasing speed of deforestation in the Amazonia and the problems faced by local communities and indigenous people who depend on forestry resources, the need for sustainable and collaborative forest management is evident. This essay evaluates the extent to which community-based conservation strategies could be framed into the social innovation approach, based on the experience of Community Forest Management in Callería Native Community (Ucayali, Peru). To address this purpose, different academic sources on Community Forest Management experiences within and outside the Amazon region and the case study itself were consulted, as well as other sources referring to the concepts of conservation, socio-ecological systems, governance of the commons and social innovation. The conclusion of this essay is that Community Forest Management could be largely framed as a solution within a so...
20
artículo
Publicado 2023
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A review of the situation of forest management in Peru is carried out, particularly in the Amazon region, using the United Nations' definition of sustainable forest management as a reference. This definition is based on: (i) the extent of forest resources; (ii) forest biological diversity; (iii) the health and vitality of forests; (iv) productive functions; (v) protective functions; (vi) socio-economic functions; and (vii) the regulatory, institutional, and policy framework. Based on the review of available information on these aspects, the current situation of deforestation is illustrated, which reduces forest coverage and diminishes the provision of ecosystem services. Risks of unsustainability in the utilization of certain resources, such as species listed in the CITES Convention, are identified. Inappropriate situations regarding limited access to resources for certain stakeholders a...
