A5042435724- Horticultural and Viticultural Research
- Remote Sensing in Agriculture
- Remote Sensing and LiDAR Applications
- Crustacean biology and ecology
- Marine and fisheries research
- Aquaculture Nutrition and Growth
- Wine Industry and Tourism
- Historical and socio-economic studies of Spain and related regions
- Fire effects on ecosystems
- Regional Development and Innovation
- Environmental and Ecological Studies
- Soil Geostatistics and Mapping
- Spectroscopy and Chemometric Analyses
- Forest ecology and management
- Fermentation and Sensory Analysis
- 3D Surveying and Cultural Heritage
- Mediterranean and Iberian flora and fauna
- Leaf Properties and Growth Measurement
- Plant Water Relations and Carbon Dynamics
- Urbanism, Landscape, and Tourism Studies
- Reproductive biology and impacts on aquatic species
- Educational methodologies and cognitive development
- Administrative Law and Governance
- Educational Research and Science Teaching
- Forest Insect Ecology and Management
Universidad de León
2016-2025
Universidad de Ciencias Pedagógicas José de la Luz Caballero
2017
University of Castilla-La Mancha
2016
Instituto Español de Oceanografía
2013
Universidade de Vigo
2010-2011
Centro Universitario de la Defensa
2011
Xunta de Galicia
2006-2008
Phoenix Contact (United States)
2008
Universidad de León
2008
Centro Nacional de Sanidad Ambiental
2006
The geometrical accuracy of georeferenced digital surface models (DTM) obtained from images captured by micro-UAVs and processed using structure motion (SfM) photogrammetry depends on several factors, including flight design, camera quality, calibration, SfM algorithms georeferencing strategy. This paper focusses the critical role number location ground control points (GCP) used during stage. A challenging case study involving an area 1200+ ha, 100+ GCP 2500+ photos was used. Three thousand,...
Irrigation scheduling is critical as it affects both fruit yield and composition. We examined the potential to use field-measured hyperspectral remote sensing data (reflectance transmission over 350–2500 nm wavelength region) estimate leaf water content, equivalent thickness (EWT), (Ψ) in a commercial vineyard of <i>Vitis vinifera</i> cv. Pinot noir. The allowed us evaluate number reflectance patterns vine status through correlations using two spectral approaches: direct measurement...
A fuel-type map of a predominantly shrub-land area in central Portugal was generated for fire research experimental site, by combining airborne light detection and ranging (LiDAR), simultaneous color infrared ortho imaging. Since the vegetation canopy ground are too close together to be easily discerned LiDAR pulses, standard methods processing data did not provide an accurate estimate shrub height. It demonstrated that process generate digital model (DGM) sometimes contained height values...
The use of spatially explicit fire spread models to assess propagation and behaviour has several applications for management research. We used the FARSITE simulator predict a set wildfires that occurred along an east–west gradient Euro-Mediterranean countries. main purpose this work was evaluate overall accuracy quantify effects standard vs custom fuel on simulation performance. also analysed different slope classes predictions. To run simulations, input layers describing each study area...
This study explores spectroscopy in the 350 to 2500 nm range for detecting powdery mildew (Erysiphe necator) grapevine leaves, crucial precision agriculture and sustainable vineyard management. In a controlled experimental setting, spectral reflectance on leaves with varying infestation levels was measured using FieldSpec 4 spectroradiometer during July September. A detailed assessment conducted following guidelines recommended by European Mediterranean Plant Protection Organization (EPPO)...
The adoption of precision viticulture requires a detailed knowledge variation in soil chemical, physical and profile properties. This study evaluates the usefulness apparent electrical conductivity (ECa) data within GIS framework to identify variations chemical properties moisture content. work was conducted vineyard located Carneros Region (Napa Valley, California). sampled using 44 boreholes quantify characteristics 9 open pits verify borehole observations. Moisture content determined time...
Abstract It is well established that digital elevation models (DEMs) derived from unmanned aerial vehicle (UAV) images and processed by structure motion may contain important systematic vertical errors arising limitations in camera geometry modelling. Even when significant, such ‘dome’‐shaped can often remain unnoticed unless specific checks are conducted. Previous methods used to reduce these have involved: the addition of convergent supplement traditional datasets, usage a higher number...
Macroalgae are a fundamental component of coastal ecosystems and play key role in shaping community structure functioning. currently threatened by diverse stressors, particularly climate change invasive species, but they do not all respond the same way to stressors. Effective methods collecting qualitative quantitative information essential enable better, more efficient management macroalgae. Acquisition high-resolution images, which macroalgae can be distinguished on basis their texture...
This study analyses the Roman hydraulic system linked to Las Médulas gold mining complex in Northwest Iberia. The research includes a detailed mapping and assessment of network, which extends over 1110 km, using advanced geomatic techniques an innovative script for tracing canals implemented Matlab. reveals previously unidentified canals, improves existing cartographic representations, addresses water sourcing canal distribution uncertainties. It identifies 41 distributed between La Cabrera...
Abstract Wildfires have a significant impact on Soil Organic Carbon (SOC) content and fractionation. Here we used Diffuse Reflectance Spectroscopy (DRS) Machine Learning (ML) algorithms, particularly decision tree-based ones, to assess post-wildfire changes in labile, removable, recalcitrant SOC fractions across six distinct areas with varying wildfire recurrence levels. Once spectral data had been acquired by DRS, the transformation of raw through first second derivatives enhanced...
Cervical cancer remains a leading cause of death for women worldwide. Screen-and-treat programs are key strategy to reduce disease burden in low and middle-income countries (LMICs). Thermal ablation (TA) has emerged as portable alternative cryotherapy, the treatment typically used screen-and-treat initiatives. Interest TA is growing, but there limited research on its implementation public health settings. Here we present results from preliminary evaluation barriers facilitators El Salvador,...
Selecting the appropriate receiver is an issue when a major portion of global positioning system (GPS) data collection below forest canopies. This study compares four low-cost GPS receivers, in order to determine most suitable for position assessment under different canopy covers, terms ease use, accuracy, and reliability. A total 33 positional assessments were gathered per receiver, plot, method, 18 locations. Data described analyzed through sample comparison analysis at 95% confidence...
Abstract The immediate effects of three different fuel management treatments on runoff, infiltration and erosion were evaluated in a mixed heathland Galicia (NW Spain). compared were: prescribed burning, shrub chopping clearing. Rainfall simulations conducted immediately before after reduction treatments. A rainfall rate 67 mm h −1 was applied for 30 min to each runoff plot. Application significantly affected infiltration, but the parameter most by treatment soil erosion, especially burning....
Visible, near, and shortwave infrared (VIS-NIR-SWIR) reflectance spectroscopy, a cost-effective rapid means of characterizing soils, was used to predict soil sample properties for four vineyards (central north-western Spain). Sieved air-dried samples were measured using portable spectroradiometer (350–2500 nm) compared pistol grip (PG) versus contact probe (CP) setups. Raw data processed standard normal variate (SVN) detrending transformation (DT) grouped into subsets (VIS: 350–700 nm; NIR:...
Concentrations of certain chemical elements in plants need to be controlled ensure good crop quality and yield. However, laboratory analyses are usually time-consuming expensive. Although indirect methods based on leaf reflectance both faster less expensive, most indexes that only take into account wavelengths fail full advantage the entire curve depicted by modern hyperspectral sensors. This paper applies two functional prediction models, i.e., linear regression nonparametric methods,...
The characterization of vineyard soil is a key issue for crop management, which directly affects the quality and yield grapes. However, traditional laboratory analysis properties tedious both time cost consuming, not suitable precision viticulture. For this reason, fast convenient technique needed assessment management. Here, spectroscopy appears as alternative to assist analysis. This work focuses on estimating by spectroscopy. Our study was carried out using 96 samples collected from three...
Spatial relationships between lightning-induced forest fires and topography, vegetation, climate lightning characteristics were analyzed in the province of León (NW Spain). The study was based on reported period 2002-2007. A statistical model logistic regression developed to estimate probability occurrence a fire 3 x km grid. importance accurate location ignition point also investigated order evaluate sensitivity uncertainty location. with data showed better predictive ability than...