12 documents found, page 1 of 2
Qualidade da matéria orgânica e perda de fitotoxicidade em estágios pro-gressiv...
Hernández, Zulimar; Figueiredo, Daniel; Royer, Ana Caroline; Fonseca, Felicia; Almendros, Gonzalo; de Figueiredo, TomásForam avaliados quatro tratamentos de compostagem aeróbica com diferentes matérias primas (BA: bagaço de azeitona, ES: estrume, CA: casca de amendôa) durante 176 d: pilha A com 44% BA, 25% ES, 25% CA e revolvimento; pilha B com 44% BA, 11% ES, 44% CA e revolvimento; pilha C com 25% BA, 50% ES, 25% CA e revolvimento; pilha D com 44% BA, 11% ES, 44% CA e sem revolvimento, de modo a testar os três fatores limitant...
Marcadores moleculares subrogados a la repelencia al agua en suelos afectados p...
Jiménez-Morillo, Nicasio T.; Almendros, Gonzalo; Guiomar, Nuno; Miller, Ana Z.; Barrocas-Dias, Cristina; de la Rosa, José M.; Hatcher, Patrick G.La repelencia al agua del suelo (RAS) se atribuye a la acumulación de compuestos hidrofóbicos (lípidos), pero su extracción no siempre elimina la RAS, lo que sugiere que componentes macromoleculares no extraíbles también pueden estar relacionados con una RAS. Se han estudiado suelos quemados (B) y control (UB) del Parque Nacional de Doñana (Huelva, España) bajo dos tipos de vegetación (alcornoque y brezo) y fra...
Effect of a wildfire and of post-fire restoration actions in the organic matter...
Jiménez-Morillo, Nicasio T.; Almendros, Gonzalo; De la Rosa, José M.; Jordán, Antonio; Zavala, Lorena M.; Granged, Arturo J.P.; González-Pérez, José A.The impact of wildfires and of restoration actions on soil organic matter (SOM) content and structure was studied in a soil under pine (Pinus pinea) from Doñana National Park (SW Spain). Samples were collected from burnt areas before (B) and after post-fire restoration (BR) and compared with an unburnt (UB) site. Analytical pyrolysis (Py-GC/MS) was used to investigate SOM molecular composition in whole soil sam...
Fire effects on C and H isotopic composition in plant biomass and soil: Bulk an...
Jiménez-Morillo, Nicasio T.; Almendros, Gonzalo; González-Vila, Francisco J.; Jordán, Antonio; Zavala, Lorena M.; De la Rosa, José M.This work studies carbon (C) and hydrogen (H) isotope composition of plant biomass and soil organic matter (SOM) in an attempt to assess both, changes exerted by fire and possible inputs of charred materials to the soil after a wildfire. Isotope composition of bulk soil, soil particle size fractions and biomass of the dominant standing vegetation in the area (Quercus suber) from Doñana National Park (SW-Spain) ...
Hydrophobicity of soils affected by fires: An assessment using molecular marker...
Jiménez-Morillo, Nicasio T.; Almendros, Gonzalo; Miller, Ana Z.; Hatcher, Patrick G.; González-Pérez, José A.Soil water repellency (SWR) is a physical property due to a complex interaction of factors (e.g., fire, soil organic matter, soil texture) that reduces the soil water infiltration capacity. Traditionally, SWR is attributed to the accumulation and redistribution of hydrophobic compounds within soil profile. To obtain further insight into chemical compounds, which could be associated with SWR, a study was done on...
Qualidade da matéria orgânica e perda de fitotoxicidade em estágios progressivo...
Hernández, Zulimar; Figueiredo, Daniel; Royer, Ana Caroline; Fonseca, Felícia; Almendros, Gonzalo; Figueiredo, Tomás deForam avaliados quatro tratamentos de compostagem aeróbica com diferentes matérias primas (BA: bagaço de azeitona, ES: estrume, CA: casca de amendôa) durante 176 d: pilha A com 44% BA, 25% ES, 25% CA e revolvimento; pilha B com 44% BA, 11% ES, 44% CA e revolvimento; pilha C com 25% BA, 50% ES, 25% CA e revolvimento; pilha D com 44% BA, 11% ES, 44% CA e sem revolvimento, de modo a testar os três fatores limitant...
Qualidade da matéria orgânica e perda de fitotoxicidade em estágios progressivo...
Hernández, Zulimar; Figueiredo, Daniel; Royer, Ana Carolina; Fonseca, Felícia; Almendros, Gonzalo; Figueiredo, Tomás deForam avaliados quatro tratamentos de compostagem aeróbica com diferentes matérias primas (BA: bagaço de azeitona, ES: estrume, CA: casca de amendôa) durante 176 d: pilha A com 44% BA, 25% ES, 25% CA e revolvimento; pilha B com 44% BA, 11% ES, 44% CA e revolvimento; pilha C com 25% BA, 50% ES, 25% CA e revolvimento; pilha D com 44% BA, 11% ES, 44% CA e sem revolvimento, de modo a testar os três fatores limitant...
Mulching-induced preservation of soil organic matter quality in a burnt eucalyp...
De la Rosa, José M.; Jiménez-Morillo, Nicasio T; González-Pérez, José A; Almendros, Gonzalo; Vieira, Diana; Knicker, Heike; Keizer, JakobMulching has amply proven its effectiveness to mitigate post-fire soil erosion but its impacts on soil organic matter (SOM) quality and quantity continue poorly studied. The present study addressed this knowledge gap for a eucalypt plantation in central Portugal that had been burnt and, immediately after the wildfire, mulched with 13.6 Mg ha−1 of eucalypt logging residues some five years before. This was done b...
Quantitative forecasting black (pyrogenic) carbon in soils by chemometric analy...
De la Rosa, José M.; Jiménez-González, Marco A.; Jiménez-Morillo, Nicasio T.; Knicker, Heike; Almendros, GonzaloA detailed and global quantitative assessment of the distribution of pyrogenic carbon (PyC) in soils remains unaccounted due to the current lack of unbiased methods for its routine quantification in environmental samples. Conventional oxidation with potassium dichromate has been reported as a useful approach for the determination of recalcitrant C in soils. However, its inaccuracy due to the presence of residua...
Mulching-induced preservation of soil organic matter quality in a burnt eucalyp...
De la Rosa, José M.; Jiménez-Morillo, Nicasio T.; González-Pérez, José A.; Almendros, Gonzalo; Vieira, Diana; Knicker, Heike E.; Keizer, JacobMulching has amply proven its effectiveness to mitigate post-fire soil erosion but its impacts on soil organic matter (SOM) quality and quantity continue poorly studied. The present study addressed this knowledge gap for a eucalypt plantation in central Portugal that had been burnt and, immediately after the wildfire, mulched with 13.6 Mg ha-1 of eucalypt logging residues some five years before. This was done b...