Buscar
Mostrando ítems 51-60 de 70
Forest plantations in Manabí (Ecuador): assessment of fragmentation and connectivity to support dry tropical forests conservation
(MDPI, 2023)
In many tropical regions, national forests plantation programs have been promoted. Those plantations frequently contribute to habitat changes. However, the associated effects of forest plantations on habitat fragmentation ...
Evaluation of the Harvest of Prunus africana Bark on Bioko (Equatorial Guinea): Guidelines for a Management Plan
(Servicio de Publicaciones Universidad de Córdoba, 2006)
En esta obra se aborda el estado de Prunus africana como consecuencia de la extracción a la que ha estado sometida esta especie durante el periodo (1996-2004) debido a la demanda internacional de productos derivados de la ...
Cartografía de la vegetación de la isla de Bioko (Guinea Ecuatorial) mediante el uso de imágenes Landsat 7 ETM+: particularización del piso afromontano
(Instituto de Botánica Darwinion (Argentina), 2012)
La gestión forestal sostenible requiere de una información cartográfica adecuada. En este trabajo
se elaboró una cartografía actual de la vegetación de la isla de Bioko (Guinea Ecuatorial) basada en la
clasificación ...
LIDAR-based estimation of leaf area index on Holm oak [Quercus ilex L. subsp. ballota (Desf.) Samp.] trees
(CSIC, 2010)
Index (LAI) of Quercus ilex by calculating the laser-intercepted rate through the forest canopy using LiDAR data. LAI was measured in 40 trees with a hemispheric camera (NIKON Coolpix 4500) and coincided with the acquisition ...
Deriving predictive relationships of carotenoid content at the canopy level in a conifer forest using hyperspectral imagery and model simulation
(IEEE, 2014)
Recent studies have demonstrated that the R570/R515 index is highly sensitive to carotenoid (Cx + c) content in conifer forest canopies and is scarcely influenced by structural effects. However, validated methods for the ...
Analysis of postfire vegetation dynamics of Mediterranean shrub species based on terrestrial and NDVI data
(SpringerLink, 2009)
The present study offers an analysis of regeneration patterns and diversity dynamics after a wildfire, which occurred in 1993 and affected about 7000 ha in southern Spain. The aim of the work was to analyze the rule in the ...
Carotenoid content estimation in a heterogeneous conifer forest using narrow-band indices and PROSPECT + DART simulations
(Science Direct, 2012)
The present study explored the use of narrow-band indices formulated in the visible spectral region at leaf and canopy levels to estimate carotenoid content. The research area was a pine forest affected by decline processes. ...
Assessing structural effects on PRI for stress detection in conifer forests
(Science Direct, 2011)
The retrieval of indicators of vegetation stress from remote sensing imagery is an important issue for the accurate assessment of forest decline. The Photochemical Reflectance Index (PRI) has been demonstrated as a ...
Evaluating models to assess the distribution of Buxus balearica in southern Spain
(Wiley, 2010)
uestion: Which is the best model to predict the habitat distribution of Buxus balearica Lam. in southern Spain?
Location: Málaga and Granada, Spain, across an area of 38 180 km2.
Methods: Prediction models based on ...
Monitoring post-fire regeneration in Mediterranean ecosystems by employing multitemporal satellite imagery
(CSIRO PUBLISHING, 2009)
Fire-damaged ecosystems have often been monitored by applying a combination of field survey information and vegetation indices derived from remotely sensed data. Furthermore, it has been demonstrated that remotely sensed ...