Nur Algeet Abarquero

Agresta S. Coop · Remote Sensing Department

La oferta de datos espaciales es cada vez más diversa y variada sobre todo en cuanto a coste, disponibilidad geográfica y resolución (espacial y temporal) se refiere. Es importante considerar estas características en la selección de las variables medioambientales predictoras de los modelos de selección de hábitat, ya que determinan la calidad de la...

Previous research has demonstrated that remote sensing can provide spectral information related to vegetation moisture variations essential for estimating live fuel moisture content (LFMC), but accuracy and timeliness still present challenges to using this information operationally. Consequently, many regional administrations are investing importan...

El incremento de los efectos negativos del cambio climático y la aparición de especies invasoras en los bosques de todo el mundo requieren el desarrollo de métodos innovadores para monitorear y medir cuantitativamente el estado de salud de las masas arboladas. Estos efectos son especialmente notables en el área mediterránea, donde el decaimiento de...

p>The increasing negative effects of climate change and the emergence of invasive species in forests around the world require the development of innovative methods to monitor and quantitatively measure the health status of woodlands. These effects are especially notable in the Mediterranean area, where the decline of stands due to recurrent drought...

Existe una creciente alarma en el sector agroforestal por la incidencia de plagas y enfermedades que llegan a devastar masas forestales, lo que está motivando que algunos estados miembros de la Unión Europea estén invirtiendo en diferentes estudios para detectar de forma temprana plagas y enfermedades forestales. Hoy en día se dispone de métodos in...

Forest aboveground biomass (AGB) estimation over large extents and high temporal resolution is crucial in managing Mediterranean forest ecosystems, which have been predicted to be very sensitive to climate change effects. Although many modeling procedures have been tested to assess forest AGB, most of them cover small areas and attain high accuracy...

Due to the increasing importance of mangroves in climate change mitigation projects, more accurate and cost-effective aboveground biomass (AGB) monitoring methods are required. However, field measurements of AGB may be a challenge because of their remote location and the difficulty to walk in these areas. This study is based on the Livelihoods Fund...

Due to the increasing importance of mangroves in climate change mitigation projects, more accurate and cost-effective aboveground biomass (AGB) monitoring methods are required. However, field measurement of AGB may be a challenge because of its remote location and the difficulty to walk in these areas. This study is based on the Livelihoods Fund’ O...

behaviour. Reliable and updated estimations of LFMC are needed by fire managers for operational wildfire risk assessment. However, detailed and constant monitoring of LFMC in the field is costly and time-consuming. Remote sensing technologies are an important source of geospatial data that can provide spectral information related to LFMC at differe...

Live fuel moisture content is a major driver of wildfire behavior, and a key component in fire danger rating systems. Due to climate change, Mediterranean countries are suffering more frequent extreme weather conditions and an extension of fire season along the year. Therefore, public administrations in Spain are investing important amounts of reso...

Many countries have employed recently developed technologies, such as airborne lidar, to capture nationwide three-dimensional information over the past few years. In Spain, a huge volume of lidar information is available for the majority of the territory in the Spanish National Plan of Aerial Orthophotography. In this article, a multi-source approa...

Tropical forests play a key role in global carbon cycle. Reducing Emissions from Deforestation and forest Degradation (REDD +) program requires reliable mechanisms for Monitoring, Reporting and Verification (MRV). In this regard, new methods must be developed using updated technologies to assess carbon stocks. The combination of LiDAR technology an...

Context Multi-scale approaches to habitat modeling have been shown to provide more accurate understanding and predictions of species-habitat associations. It remains however unexplored how spatial and temporal variations in habitat use may affect multi-scale habitat modeling. Objectives We aimed at assessing how seasonal and temporal differences in...

REDD+ implementation requires robust, consistent, accurate and transparent national land cover historical data and monitoring systems. Satellite imagery is the only data source with enough periodicity to provide consistent land cover information in a cost-effective way. The main aim of this paper is the creation of an operational framework for moni...

Despite its low nutrient concentration, the high amount of biomass accumulated in the tree stem makes it an important nutrient sink. Hence, nutrient loss through timber removal at harvesting is a major cause of nutrient impoverishment at some forest sites. The present study was designed to test the following hypotheses: (a) nutrient allocation in t...

European countries are increasingly employing airborne LiDAR to capture nationwide tridimensional information over the last decade. In Spain, a huge volume of LiDAR information is available for most part of the territory in the Spanish National Plan of Aerial Orthophotography (PNOA-LiDAR). In addition, many countries have carried out forest invento...

Recent land use changes in Central America have involved the abandonment of marginal farmland activities, the regeneration of secondary forest and the spread of high return crops such as oil palm plantations. The potential impacts of land use change on overland flow are evaluated using data from Tinoco Experimental Catchment (South Pacific Costa Ri...

Although high deforestation rates are documented in Latin America, there are also significant signs of secondary forest regrowth. In this study, we analyze the land cover dynamics in the Osa Peninsula region of Costa Rica between 1987 and 2009 that provides a good scenario for evaluating the effects over forest trends of the environmental policies...

The determination of thesoilmoisture regimehas been limitedin many casestocount the number ofclimatologicallydry months, regardless ofthe capacity of soilto hold water.For this work, it was proposed to analyze the hydric balance of the profiles studied taking into account not only climatic variables (three weather stations)but also edaphics, for wh...

La ordenación agrohidrológica de las cuencas se considera un pilar importante sobre el que basar las políticas territoriales de las comunidades que se integran en ellas. Así, estos proyectos son documentos que analizan desde la perspectiva física y socioeconómica, los recursos agua y suelo y recogen una serie de propuestas de manejo de las cuencas,...