0000000000398020

AUTHOR

Pavel Dlapa

0000-0002-3530-7403

showing 3 related works from this author

Organic matter and wettability characteristics of wildfire ash from Mediterranean conifer forests

2015

Abstract Thermogravimetric analysis (TGA) and water repellency (wettability) determination of ash samples collected following wildfires at four different Mediterranean conifer forest sites in eastern Spain were conducted to provide insights into variations in key chemical and physical characteristics of ash. TGA allowed the evaluation of organic matter (OM) and inorganic carbonate (IC) characteristics and their role in ash wettability. Thermogravimetric profiles were recorded for 40 ash samples (ten from each site). The persistence of water repellency of all ash samples was assessed by the Water Drop Penetration Time (WDPT) test. OM contents decreased, whilst OM stability indices and IC con…

inorganic chemicalschemistry.chemical_classificationMediterranean climateHydrologyThermogravimetric analysisPhysicsCarbon sinkCombustionchemistry.chemical_compoundchemistryWater repellentEnvironmental chemistryEnvironmental scienceCarbonateOrganic matterWettingBiologyEarth-Surface Processes
researchProduct

Rainfall and water yield in Macizo del Caroig, Eastern Iberian Peninsula. Event runoff at plot scale during a rare flash flood at the Barranco de Ben…

2021

[EN] Floods are a consequence of extreme rainfall events. Although surface runoff generation is the origin of discharge, flood research usually focuses on lowlands where the impact is higher. Runoff and sediment delivery at slope and pedon scale receiving much less attention in the effort to understand flood behaviour in time and space. This is especially relevant in areas where, due to climatic and hydrogeological conditions, streams are ephemeral, so-called dry rivers (¿wadis¿, "ramblas" or ¿barrancos¿) that are widespread throughout the Mediterranean. This paper researches the relationship between water delivery at pedon and slope scale with dry river floods in Macizo del Caroig, Eastern…

RainfallMediterranean climate010504 meteorology & atmospheric sciencesRunoffGeography Planning and DevelopmentSTREAMS010501 environmental sciencesEnvironmental Science (miscellaneous)01 natural sciencessediments rainfallPrecipitaciónSedimentsDry riversRíos secosEarth and Planetary Sciences (miscellaneous)Flash floodWadiEscorrentía0105 earth and related environmental sciencesHydrologyGeography (General)geographygeography.geographical_feature_categoryFlood mythSedimentCOMERCIALIZACION E INVESTIGACION DE MERCADOSExtreme events15. Life on landEphemeral floods6. Clean waterInundaciones efímerasSedimentos13. Climate actionINGENIERIA CARTOGRAFICA GEODESIA Y FOTOGRAMETRIAG1-922Environmental scienceSurface runoffEventos extremosChannel (geography)Cuadernos de Investigación Geográfica
researchProduct

FT-IR spectroscopy reveals that ash water repellency is highly dependent on ash chemical composition

2013

Abstract After a fire, an ash layer is commonly present, which influences soil properties and hillslope hydrology. The wettability of ash, which can vary from highly absorbent to water repellent, is an important characteristic in this context. Recent work has suggested that ash wettability is related to its degree of combustion, which in turn, can be expected to determine ash chemical composition. In this paper we therefore examine the relationship between ash water repellency and ash chemical composition. Ten ash samples with different wettability were each taken from four burned Mediterranean forest sites located at Albaida (A), Lliber (L), Navalon (N), and Pinoso (P), in the east of Spai…

Mediterranean climatechemistry.chemical_classificationCalciteSoil scienceCombustionAbsorbancechemistry.chemical_compoundchemistryEnvironmental chemistryCarbonateOrganic matterWettingChemical compositionEarth-Surface Processes
researchProduct