En Perú, durante la última década, el cultivo de arándano se ha incrementado en más del 40%. Representa una especie cara, debido al contenido de compuestos antioxidantes, beneficiosos para la salud humana. En este sentido, el estudio se realizó en la provincia de Chachapoyas con el objeto de caracterizar la diversidad genética e identificar zonas potenciales para cultivo de arándano, mediante uso de marcadores moleculares y la integración de la técnica del AHP (Proceso de Análisis Jerárquico) basada en un SIG (Sistema de Información Geográfica) bajo escenarios del cambio climático, modelado en MaxEnt. Para tal fin, se amplificó el gen rbcL mediante técnica de PCR (Reacción en Cadena de la Polimerasa) para identificar las especies de arándano silvestre. La caracterización molecular demostró que 35 de las muestras colectadas e identificadas en la provincia de Chachapoy...

En Perú, realizar un monitoreo de pastizales es cada vez más esencial para apoyar a los productores agropecuarios y fortalecer nuevas políticas públicas enmarcadas a un manejo sostenible de pastizales en las cuencas hidrográficas. En este sentido, esta investigación buscó evaluar la degradación de pastizales en las microcuencas de Pomacochas y Ventilla, Amazonas − Perú. Para ello, se utilizaron imágenes de un Remotely Piloted Aircraft (RPA) y satelital correspondientes a Sentinel 2B / Planet e índices de vegetación: Indice de vegetación de diferencia normalizada (NDVI), Índice de Vegetación mejorado (EVI), Índice de Vegetación Ajustado al Suelo (SAVI) y de Cobertura Vegetal de Pastizales (CVP). Los datos se procesaron en i) Google Earth Engine (GEE) mediante el uso del algoritmo de clasificación Random Forest (RF) y ii) Google Colab (Python) usando RF, Máquinas de Ve...

Scientific-technological knowledge maintains the anthropocentric power-pattern and exploitive attitude with regard to nature, but sustainability science asks for an integration of territorial and decontextualized knowledge systems. Visual participatory methodologies involving diverse local stakeholder facilitate dialogue on environmental and sustainability issues. Inspired by visual ethnography and mediated discourse analysis, the present article uses semiological analysis to reconstruct the depicted narratives on the nature-society system in drawings representing “regional development”. The drawings were elaborated in a series of participatory workshops involving university faculty and students, regional government and non-governmental organizations and farmers from local communities in the northern Amazonian region of Peru. The analysis reveals a prevailing anthropo and technology ...

Meteorological observations play a major role in land management; thus, it is vital to properly plan the monitoring network of weather stations (WS). This study, therefore, selected ‘highly suitable’ sites with the objective of replanning the WS network in Amazonas, NW Peru. A set of 11 selection criteria for WS sites were identified and mapped in a Geographic Information System, as well as their importance weights were determined using Analytic Hierarchy Process and experts. A map of the suitability of the territory for WS sites was constructed by weighted superimposition of the criteria maps. On this map, the suitability status of the 20 existing WS sites was then assessed and, if necessary, relocated. New ‘highly suitable’ sites were determined by the Near Analysis method using existing WS (some relocated). The territory suitability map for WS showed that 0.3% (108.55 km2) of ...

Careful landfill selection with minimal environmental impact is vital for urban planners. This study aims to identify suitable sites for controlled landfills using Fuzzy-AHP integrated with Remote Sensing and GIS, considering a 20-year projection of population and solid waste generation. Initially, twelve sub-criteria were identified, grouped into environmental, socio-economic, and physical categories, and then weighted using paired comparison matrices involving nine experts. The sub-criteria were rasterized and classified into four suitability levels. The weighted overlay of sub-criteria maps generated a territorial suitability model. Within the Alto Utcubamba Commonwealth (Amazonas, Peru), 0.069%, 41.70%, 66.934%, 0.20%, and 12.4% of the territory are suitable, moderately suitable, less suitable, unsuitable, and restricted, respectively, for landfill establishment. Subsequently, 16 hig...

In Peru, grasslands monitoring is essential to support public policies related to the identification, recovery and management of livestock systems. In this study, therefore, we evaluated the spatial dynamics of grasslands in Pomacochas and Ventilla micro-watersheds (Amazonas, NW Peru). To do this, we used Landsat 5, 7 and 8 images and vegetation indices (normalized difference vegetation index (NDVI), enhanced vegetation index (EVI) and soil adjusted vegetation index (SAVI). The data were processed in Google Earth Engine (GEE) platform for 1990, 2000, 2010 and 2020 through random forest (RF) classification reaching accuracies above 85%. The application of RF in GEE allowed surface mapping of grasslands with pressures higher than 85%. Interestingly, our results reported the increase of grasslands in both Pomacochas (from 2457.03 ha to 3659.37 ha) and Ventilla (from 1932.38 ha to 4056.26 ha...