<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chrenková, Katarína</style></author><author><style face="normal" font="default" size="100%">Mataix-Solera, Jorge</style></author><author><style face="normal" font="default" size="100%">Dlapa, Pavel</style></author><author><style face="normal" font="default" size="100%">Arcenegui, Victoria</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Long-term changes in soil aggregation comparing forest and agricultural land use in different Mediterranean soil types</style></title><secondary-title><style face="normal" font="default" size="100%">Geoderma</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Aggregate stability</style></keyword><keyword><style  face="normal" font="default" size="100%">Conventional tillage</style></keyword><keyword><style  face="normal" font="default" size="100%">Mean weight diameter</style></keyword><keyword><style  face="normal" font="default" size="100%">water repellency</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><volume><style face="normal" font="default" size="100%">235-236</style></volume><pages><style face="normal" font="default" size="100%">290-299</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The formation and stabilization of soil aggregates have a key role to play in adequate soil functioning. Aggregate stability (AS) is considered by some authors to be a property that provides information on soil quality. It's also a property that is highly influenced by land use and management. This study aims to identify the long-term changes in soil aggregation and related properties comparing forest and agricultural land use in Mediterranean calcareous soils. For the research, seven study sites with different soil characteristics located in Alicante Province (E Spain) were chosen to compare the overall effect of land use change from agriculture to forestry on soil aggregation. At every site, samples of the same soil type were collected from agricultural land (dry crops with conventional tillage management using ploughing), and nearby forest, where agriculture was abandoned between 20 and 50years ago. Selected physical and chemical properties like: texture, total content of aggregates (TCA), aggregate stability (AS), organic matter content (OM), carbonates, mean weight diameter (MWD) of aggregates and water repellency (WR) were analysed on the collected soil samples. As expected, in all soils, the AS was significantly lower in agricultural sites than in forest sites. But in some cases the differences were much higher than in others. In forest sites the AS varied between 46 and 82% while in agricultural sites it ranged between 14 and 45%. The results showed strong positive correlation of AS with OM. The lowest values of AS in forest areas were found in wettable sandy soils. The relative increase of AS in forest soils compared to agricultural land use ranged from 39 to 79%. These differences can be explained mainly by some soil properties, such as OM content, texture, and WR. In particular, the lower OM content and absence of WR are responsible for the lower values of AS in agricultural land use due to the long-term conventional tillage management. Soil WR was found in three of the sites, and its presence plays a key role in soil aggregation and its stability, especially for sandy soils. The MWD was in most cases higher in forest than in agricultural sites, except for two wettable sandy soils with the lowest initial AS. In the case of carbonates, no correlations were found with AS, and only in the group of sandy soils, significant positive correlations between carbonates and TCA and with MWD were found. In conclusion we can say that the prolonged use of conventional tillage management using ploughing has a strong influence on AS in all types of soils studied in this research. The recovery after decades of land use abandonment not only is dependent on how is the increase of soil OM content, but also is controlled by some soil properties such as the texture and the presence of WR. In some cases the presence of hydrophobic substances can play a key role in the formation and stabilization of soil aggregates, contributing to maintaining good levels of OM and avoiding higher levels of soil degradation.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Lozano, E</style></author><author><style face="normal" font="default" size="100%">Jiménez-Pinilla, P</style></author><author><style face="normal" font="default" size="100%">Mataix-Solera, J</style></author><author><style face="normal" font="default" size="100%">Arcenegui, V</style></author><author><style face="normal" font="default" size="100%">Bárcenas, G M</style></author><author><style face="normal" font="default" size="100%">González-Pérez, J.a.</style></author><author><style face="normal" font="default" size="100%">García-Orenes, F</style></author><author><style face="normal" font="default" size="100%">Torres, M P</style></author><author><style face="normal" font="default" size="100%">Mataix-Beneyto, J</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Biological and chemical factors controlling the patchy distribution of soil water repellency among plant species in a Mediterranean semiarid forest</style></title><secondary-title><style face="normal" font="default" size="100%">Geoderma</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Ergosterol</style></keyword><keyword><style  face="normal" font="default" size="100%">Glomalin related soil protein</style></keyword><keyword><style  face="normal" font="default" size="100%">Lipid fraction</style></keyword><keyword><style  face="normal" font="default" size="100%">Organic matter content</style></keyword><keyword><style  face="normal" font="default" size="100%">water repellency</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2013</style></year></dates><publisher><style face="normal" font="default" size="100%">Elsevier B.V.</style></publisher><volume><style face="normal" font="default" size="100%">207-208</style></volume><pages><style face="normal" font="default" size="100%">212-220</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Natural soil water repellency is a property that has already been observed in forest soils and is characterized by its patchy distribution. There aremany factors involved in its development. In thiswork,we have studied a large number of chemicaland biological factorsunder the influence ofdifferent plant species (Pinus halepensis,Quercus rotundifolia, Cistus albidus and Rosmarinus officinalis) to learn which has the greatest responsibility for its pres- ence and persistence in the top-soil layer. We observed strong and significant correlations between ergosterol, glomalin related soil protein (GRSP), extractable lipids, soil organic matter (SOM) content and water repellency (WR). Our results suggested lipid fraction as the principal factor. Moreover, apart from Pinus,fungalbiomass seems to be also related to the SOM content. SoilWR found under Pinus appears to be the most influenced by fungi. Quality of SOM, to be precise, lipid fraction could be responsible for WR and its relationship with fungal activity. ©</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Schnabel, S</style></author><author><style face="normal" font="default" size="100%">Pulido-Fernández, M</style></author><author><style face="normal" font="default" size="100%">Lavado-Contador, J F</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Soil water repellency in rangelands of Extremadura (Spain) and its relationship with land management</style></title><secondary-title><style face="normal" font="default" size="100%">Catena</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Mediterranean type climate</style></keyword><keyword><style  face="normal" font="default" size="100%">Rangelands</style></keyword><keyword><style  face="normal" font="default" size="100%">Soil surface cover</style></keyword><keyword><style  face="normal" font="default" size="100%">water repellency</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><publisher><style face="normal" font="default" size="100%">Elsevier B.V.</style></publisher><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Soil water repellency reduces inﬁltration capacity, enhancing overland ﬂow and even runoff production, and may produce patchiness in water inﬁltration at the hillslope scale. Knowledge about hydrophobicity in rangelands of Mediterranean type climate and its relation with vegetation cover and land management is sparse. The objectives of the present work are to determine the degree and spatial occurrence of soil water repellency and to deﬁne its relationship with site characteristics, such as soil, vegetation and land management in rangelands of SW Spain. Field work was conducted in September 2009 in 22 environmental units belonging to 10 farms, distributed throughout the region of Extremadura. The Molarity of an Ethanol Droplet (MED) method was used for measuring water repellency of the soil surface. A total of 725 points were sampled and the study was combined with a detailed vegetation survey, the determination of soil properties and of land use and management characteristics. More than 70% of the measurement points were hydrophilic, however differences between farm units were found. The highest values of hydrophobicity were observed on soil surfaces below the canopy of holm oaks, as compared to the low values found below shrub canopies (Retama sphaerocarpa) and in open areas. With respect to ground cover, water repellency was highest at sites covered by holm oak litter. At soil surfaces covered by cork oak litter, dry grass and mosses the degree of repellency was lower. Almost all sites with a bare soil surface were hydrophilic, independent of whether these were located below a tree canopy or in open areas. A signiﬁcant positive relationship between livestock density and the degree of bare soil existed, and consequently, areas with high animal numbers were dominantly hydrophilic. No signiﬁcant relationships were encountered between the degree of soil water repellency and soil properties.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Coelho, C O A</style></author><author><style face="normal" font="default" size="100%">Laouina, A</style></author><author><style face="normal" font="default" size="100%">Regaya, K</style></author><author><style face="normal" font="default" size="100%">Ferreira, A J D</style></author><author><style face="normal" font="default" size="100%">Carvalho, T M M</style></author><author><style face="normal" font="default" size="100%">Chaker, M</style></author><author><style face="normal" font="default" size="100%">Naafa, R</style></author><author><style face="normal" font="default" size="100%">Naciri, R</style></author><author><style face="normal" font="default" size="100%">Boulet, A K</style></author><author><style face="normal" font="default" size="100%">Keizer, J J</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The impact of soil water repellency on soil hydrological and erosional processes under Eucalyptus and evergreen Quercus forests in the Western Mediterranean</style></title><secondary-title><style face="normal" font="default" size="100%">AUSTRALIAN JOURNAL OF SOIL RESEARCH</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Eucalyptus spp.</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus suber</style></keyword><keyword><style  face="normal" font="default" size="100%">water repellency</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year></dates><publisher><style face="normal" font="default" size="100%">C S I R O PUBLISHING</style></publisher><pub-location><style face="normal" font="default" size="100%">150 OXFORD ST, PO BOX 1139, COLLINGWOOD, VICTORIA 3066, AUSTRALIA</style></pub-location><volume><style face="normal" font="default" size="100%">43</style></volume><pages><style face="normal" font="default" size="100%">309-318</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Forest areas of the Mediterranean regions of Portugal, Morocco, and Tunisia are suffering major land use changes, with the replacement of traditional evergreen Quercus species (i. e. Quercus suber and Quercus ilex) by fast-growing Eucalyptus species. Since Eucalyptus species are amongst those with a higher impact on soil water repellency, this study examined the effect of the replacement on soil properties, water repellency, and on soil hydrological processes and erosion rates. Measurements were performed in areas that correspond to the climatic distribution of evergreen Quercus suber: at Macao and Portel in Portugal; Ben Slimane in Morocco; and Cap Bon, Sousse, and Ain Snoussi in Tunisia. Soil superficial characteristics, including vegetation and litter cover, organic matter content, soil compaction and shear strength, and water repellency were measured for evergreen oak and Eucalyptus stands and related to soil erosion rates and soil hydrological processes. The data are based on the spatial distribution of properties assessed through the use of intensive spatial sampling and on rainfall simulations to address soil hydrological and erosional processes. The results show very different wetting patterns for some of the Eucalyptus stands during dry and moist periods, as a result of strong hydrophobic characteristics following dry spells. Nevertheless, the Eucalyptus stands in semi-arid climate show no sign of water repellency, which contradicts the theory that water repellency is purely a result of dry conditions. The experiments show no significant increases on overland flow amounts and erosion rates as direct result of soil water repellence (hydrophobicity) characteristics.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Coelho, C. O. A.</style></author><author><style face="normal" font="default" size="100%">Laouina, A.</style></author><author><style face="normal" font="default" size="100%">Regaya, K.</style></author><author><style face="normal" font="default" size="100%">Ferreira, A. J. D.</style></author><author><style face="normal" font="default" size="100%">Carvalho, T. M. M.</style></author><author><style face="normal" font="default" size="100%">Chaker, M.</style></author><author><style face="normal" font="default" size="100%">Naafa, R.</style></author><author><style face="normal" font="default" size="100%">Naciri, R.</style></author><author><style face="normal" font="default" size="100%">Boulet, A. K.</style></author><author><style face="normal" font="default" size="100%">Keizer, J. J.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The impact of soil water repellency on soil hydrological and erosional processes under Eucalyptus and evergreen Quercus forests in the Western Mediterranean</style></title><secondary-title><style face="normal" font="default" size="100%">AUSTRALIAN JOURNAL OF SOIL RESEARCH</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Eucalyptus spp.</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus suber</style></keyword><keyword><style  face="normal" font="default" size="100%">water repellency</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2005///</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">43</style></volume><pages><style face="normal" font="default" size="100%">309 - 318</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Forest areas of the Mediterranean regions of Portugal, Morocco, and Tunisia are suffering major land use changes, with the replacement of traditional evergreen Quercus species (i. e. Quercus suber and Quercus ilex) by fast-growing Eucalyptus species. Since Eucalyptus species are amongst those with a higher impact on soil water repellency, this study examined the effect of the replacement on soil properties, water repellency, and on soil hydrological processes and erosion rates. Measurements were performed in areas that correspond to the climatic distribution of evergreen Quercus suber: at Macao and Portel in Portugal; Ben Slimane in Morocco; and Cap Bon, Sousse, and Ain Snoussi in Tunisia. Soil superficial characteristics, including vegetation and litter cover, organic matter content, soil compaction and shear strength, and water repellency were measured for evergreen oak and Eucalyptus stands and related to soil erosion rates and soil hydrological processes. The data are based on the spatial distribution of properties assessed through the use of intensive spatial sampling and on rainfall simulations to address soil hydrological and erosional processes. The results show very different wetting patterns for some of the Eucalyptus stands during dry and moist periods, as a result of strong hydrophobic characteristics following dry spells. Nevertheless, the Eucalyptus stands in semi-arid climate show no sign of water repellency, which contradicts the theory that water repellency is purely a result of dry conditions. The experiments show no significant increases on overland flow amounts and erosion rates as direct result of soil water repellence (hydrophobicity) characteristics.</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><notes><style face="normal" font="default" size="100%">The following values have no corresponding Zotero field:&lt;br/&gt;pub-location: 150 OXFORD ST, PO BOX 1139, COLLINGWOOD, VICTORIA 3066, AUSTRALIA&lt;br/&gt;publisher: C S I R O PUBLISHING</style></notes></record></records></xml>