A5041794458- Fire effects on ecosystems
- Soil erosion and sediment transport
- Hydrology and Watershed Management Studies
- Plant Water Relations and Carbon Dynamics
- Water resources management and optimization
- Soil and Water Nutrient Dynamics
- Rangeland and Wildlife Management
- Flood Risk Assessment and Management
- Landslides and related hazards
- Agroforestry and silvopastoral systems
- Mediterranean and Iberian flora and fauna
- Archaeological and Historical Studies
- Tree Root and Stability Studies
- Soil Carbon and Nitrogen Dynamics
- Hydrology and Sediment Transport Processes
- Soil and Unsaturated Flow
- Geological and Geophysical Studies Worldwide
- Archaeological and Geological Studies
- Water Resource Management and Quality
- Freshwater macroinvertebrate diversity and ecology
- Aeolian processes and effects
Centro de Estudos Ambientais e Marinhos
2015
University of Aveiro
2011-2015
Abstract During the 20th century, afforestation resulted in plantations of Pine and Eucalypt becoming main crops north‐central Portugal with associated well‐known soil water repellency (SWR). The aim this study was to improve insights temporal dynamics abrupt transitions topsoil mechanism that determine behaviour SWR. Topsoil monitored Caramulo Mountains (north‐central Portugal) between July 2011 June 2012. intensity SWR measured situ at depths 0, 2.5 7.5 cm using ‘molarity an ethanol...
Abstract. The north-central region of Portugal has undergone significant land cover change since the early 1900s, with large-scale replacement natural vegetation types plantation forests. This transition consisted an initial conversion primarily to Pinus pinaster, followed by a secondary Eucalyptus globulus. is likely have altered hydrologic functioning this region; however, these potential impacts are not fully understood. To contribute better understanding change, study examines temporal...
Abstract Soil water repellency can impact soil hydrology, overland flow generation and associated losses. However, current hydrological models do not take it into account, which creates a challenge in repellency‐prone regions. This work focused on the adaptation for of daily balance model. Repellency is estimated from moisture content using site‐specific empirical relations used to limit maximum moisture. model was developed tested approximately 2 years data one long‐unburned two recently...
Wildfires increase plot-scale soil erosion rates across the world. However, very few studies have monitored post-fire losses at catchment scale, especially in Mediterranean region. The FIRECNUTS project was originally set out to address this research gap by selecting a recently burnt and instrumenting its outlet with two flumes maximum discharge capacities of 120 1700 l s-1. Six months after fire, however, experimental bench terraced bulldozer. Furthermore, smallest flume suffered from...
Laboratory experiments were carried out to explore the effect of thermal shocks (as occur during fire) and simulated rainfall events on cation leaching dynamics in an organic rich Leptic Umbrisol soil. The soil samples collected field using specially designed lysimeter boxes that allow sampling application shock treatments while keeping structure unaltered. temperature degree-hours accumulated heat determined, (Na+, K+, Ca2+ Mg2+) was measured surface runoff (0-cm depth) subsurface flow...
Important factors in the evaluation of fire severity are duration soil exposition to a certain temperature as well that determine thermal transmissivity on (moisture, texture, organic matter content, etc.). The aim this work was apply degree-hours method (DH) characterize impact forest fires soils. Thermal treatments laboratory were conducted using samples order study effects exchange complex. results showed effect supplied degree-hour cation capacity (CEC), which expressed by continuous...
Abstract. The north-central region of Portugal has undergone significant afforestation the species Pinus pinaster and Eucalyptus globulus since early 1900s; however, long-term hydrologic impacts this land cover change are not fully understood. To contribute to a better understanding potential change, study examines temporal trends in 7 years data from Águeda watershed (part Vouga Basin) over period 1936 2010. Meteorological hydrological records were analysed using combined...