<?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%">Parras-Alcántara, Luis</style></author><author><style face="normal" font="default" size="100%">Díaz-Jaimes, Luisa</style></author><author><style face="normal" font="default" size="100%">Lozano-García, Beatriz</style></author><author><style face="normal" font="default" size="100%">Fernández Rebollo, Pilar</style></author><author><style face="normal" font="default" size="100%">Moreno Elcure, Félix</style></author><author><style face="normal" font="default" size="100%">Carbonero Muñoz, María D</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Organic farming has little effect on carbon stock in a Mediterranean dehesa (southern Spain)</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%">Conventional tillage</style></keyword><keyword><style  face="normal" font="default" size="100%">Management practices</style></keyword><keyword><style  face="normal" font="default" size="100%">Organic farming</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus ilex</style></keyword><keyword><style  face="normal" font="default" size="100%">Soil organic carbon</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><volume><style face="normal" font="default" size="100%">113</style></volume><pages><style face="normal" font="default" size="100%">9-17</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Understanding soil dynamics is essential for making appropriate land management decisions, as soils can affect the carbon content from the atmosphere, emitting large quantities of CO2 or storing carbon. This property is essential for climate change mitigation strategies as agriculture and forestry soil management can affect the car- bon cycle. The Mediterranean dehesa (Mediterranean grassland ecosystem with scattered oak trees — grazing systemwith Quercus ilex spp. ballota) is a silvopastoral systemthat integrates forestry, agricultural and livestock practices. The dehesa is characterized by the preservation of forest oaks that provide environmental services includingcarbon capture and storage.Thispaper showsthe relationships betweensoilproperties andsoil organic carbon (SOC) in two soil types: Cambisols (CM) and Leptosols (LP), with two management systems: organic farming (OF) for 20 years and conventional tillage (CT) in a Mediterranean dehesa of southern Spain without cropping. An analysis of 85 soil profiles was performed in 2009 in Los Pedroches Valley (Cordoba, southern Spain). TheSOCstock (SOC-S)was greater inCM(75.64 Mg ha−1)thaninLP(44.01 Mg ha−1). Physical parameters were themain variables affecting soil development. SOC-S was very similar in OF and CT (CM [74.90 Mg ha−1-CT; 76.39 Mg ha−1-OF] and LP [44.77 Mg ha−1-CT; 43.25 Mg ha−1-OF]). Data analysis showed that management practices had little effect on SOC storage in the study zone. Significant differences between soil types and manage- ment practiceswere found in SOC content for different horizons. The stratification ratiowas N2in bothsoils types (CM and LP) and management systems (OF and CT). These results indicate that the soil is of high quality, and that management practices have little influence on SOC-S in Los Pedroches Valley.</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%">Gaspar, P.</style></author><author><style face="normal" font="default" size="100%">Escribano, A. J.</style></author><author><style face="normal" font="default" size="100%">Mesías, F. J.</style></author><author><style face="normal" font="default" size="100%">Escribano, M.</style></author><author><style face="normal" font="default" size="100%">Pulido, A. F.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Goat systems of Villuercas-Ibores area in SW Spain: Problems and perspectives of traditional farming systems</style></title><secondary-title><style face="normal" font="default" size="100%">Small Ruminant Research</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Farm typology</style></keyword><keyword><style  face="normal" font="default" size="100%">goat systems</style></keyword><keyword><style  face="normal" font="default" size="100%">Management practices</style></keyword><keyword><style  face="normal" font="default" size="100%">multivariate analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">PDO “Ibores Cheese”</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2011///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://linkinghub.elsevier.com/retrieve/pii/S0921448811000769</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">97</style></volume><pages><style face="normal" font="default" size="100%">1 - 11</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">A study of dairy goat systems was carried out in the “Villuercas-Ibores” region, a mountainous area located in the south-west of the Iberian Peninsula (Cáceres, Spain). This territory is characterized by difﬁcult orography and a fairly harsh climate, and has low indices of income and population density. Goat production in the area has contributed notably to its economic and social development historically, but there has been a marked recession in goat-based activities in recent decades, leading to changes in the type and intensity of land use. The purpose of the study is to analyze the main characteristics of the current goat farming systems in a zone in which goat milk production is possible under a Protected Designation of Origin (PDO) brand “Ibores Cheese”, and to establish a farm classiﬁcation that will allow groups of holdings with common characteristics to be identiﬁed, so that they can be compared and their performance evaluated. The data were obtained through direct interviews to goat farmers (n = 61) within the geographical area of the PDO “Ibores Cheese”. Speciﬁc information on management was collected, together with data on family characteristics, labour, livestock numbers, land use, installations, continuity, recent changes in farming, and the farmer’s opinions. A principal component analysis (PCA) was used to examine the relationships among the quantitative variables, then a two-step cluster analysis was applied using the factors obtained in the PCA and categorical variables. This resulted in a farm typology of three groups distinguished by their land use, goat breed, and PDO membership. The best management practices and productivity results were obtained by the farms furthest removed from the traditional systems. The ﬁrst group of farms is characterized by small size ﬂocks. Many of these farms do not belong to the PDO and therefore they have chosen breeds that are not allowed by the PDO regulations. Most of them are semi-intensive or intensive farms. The second group consist of extensive farms with large size ﬂocks of goats complemented with sheep farming and, occasionally, with beef cattle or Iberian pig. They have got technically suitable milking rooms, although the availability of other infrastructure is poor. Finally, the third group identiﬁed includes extensive farms whose goat ﬂock size is very similar to that of group 1, but in 70% of the cases they are mixed farms, mainly combining goat with sheep ﬂocks. Most of them are producing milk that is sold to ﬁrms producing PDO cheese. It is the group closest to the traditional farming system and the farms have small ﬂocks of low productivity per goat, raising autochthonous breeds and their crossbreeds.</style></abstract><issue><style face="normal" font="default" size="100%">1-3</style></issue><notes><style face="normal" font="default" size="100%">The following values have no corresponding Zotero field:&lt;br/&gt;publisher: Elsevier B.V.</style></notes></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%">Bugalho, Miguel N.</style></author><author><style face="normal" font="default" size="100%">Caldeira, Maria C.</style></author><author><style face="normal" font="default" size="100%">Pereira, João S.</style></author><author><style face="normal" font="default" size="100%">Aronson, James</style></author><author><style face="normal" font="default" size="100%">Pausas, Juli G.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Mediterranean cork oak savannas require human use to sustain biodiversity and ecosystem services</style></title><secondary-title><style face="normal" font="default" size="100%">Frontiers in Ecology and the Environment</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Biodiversity conservation</style></keyword><keyword><style  face="normal" font="default" size="100%">Carbon storage</style></keyword><keyword><style  face="normal" font="default" size="100%">Cork oak savannas</style></keyword><keyword><style  face="normal" font="default" size="100%">ecosystem services</style></keyword><keyword><style  face="normal" font="default" size="100%">Management practices</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus suber</style></keyword><keyword><style  face="normal" font="default" size="100%">Shrub encroachment (voyant)</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2011///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.esajournals.org/doi/abs/10.1890/100084</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">9</style></volume><pages><style face="normal" font="default" size="100%">278 - 286</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Mediterranean cork oak savannas, which are found only in southwestern Europe and northwestern Africa, are ecosystems of high socioeconomic and conservation value. Characterized by sparse tree cover and a diversity of understory vegetation – ranging from shrub formations to grasslands – that support high levels of biodiversity, these ecosystems require active management and use by humans to ensure their continued existence. The most important product of these savannas is cork, a non-timber forest product that is periodically harvested without requiring tree felling. Market devaluation of, and lower demand for, cork are causing a decline in management, or even abandonment, of southwestern Europe’s cork oak savannas. Subsequent shrub encroachment into the savanna’s grassland components reduces biodiversity and degrades the services provided by these ecosystems. In contrast, poverty-driven overuse is degrading cork oak savannas in northwestern Africa. “Payment for ecosystem services” schemes, such as Forest Stewardship Council (FSC) certification or Reducing Emissions from Deforestation and Degradation and enhancement of carbon stocks (REDD+) programs, could produce novel economic incentives to promote sustainable use and conservation of Mediterranean cork oak savanna ecosystems in both Europe and Africa.</style></abstract><issue><style face="normal" font="default" size="100%">5</style></issue></record></records></xml>