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dc.contributor.authorHueso Gonzalez, Paloma
dc.date.accessioned2016-09-15T10:20:22Z
dc.date.available2016-09-15T10:20:22Z
dc.date.created2016
dc.date.issued2016
dc.identifier.urihttp://hdl.handle.net/10630/12021
dc.description.abstractVegetation plays a fundamental role in soil conservation, so it is common to consider an increase in vegetation cover as one of the techniques to mitigate the effects of desertification in Mediterranean forest environments. There are two factors limiting the establishment and growth of seedlings in dry environments: (i) an excessive radiation and, (ii) the limited availability of water during the summer drought. During an afforestation plan, soil preparation is always necessary to reduce sapling mortality. The goal of this study was to analyze the effect of various organic amendments on soil according to chemical and hydrological properties, and to assess the effects of these parameters on an afforestal proposal under Mediterranean climate conditions. Five amendments were applied in an experimental set of plots: straw mulching (SM); mulch with chipped branches of Aleppo Pine (PM); TerraCotten hydroabsobent polymers (HP); sewage sludge (RU); sheep manure (SH) and control (C). Plots were afforested following the same spatial pattern, and amendments were mixed with the soil at the rate 10 Mg ha -1 . Under bare soil conditions (C), most of mortalities occurred during the summer period of the first year. A substantial positive effect of SM, PM and HP on the survival rates have been clearly observed. Conversely, when the soil was amended with SH, the survival rate quickly decreased or remained more or less constant regarding to C. In this study, the lack of differences on chemical properties indicates that there may exist other reasons to justify the differences that were found in the pattern of vegetation. However, regarding to the hydrological properties some differences have been found. In C, soils were registered below the wilting point during 4 months a year, and therefore, in the area of water unusable by plants. These months were coinciding with the summer Mediterranean drought and can justify the high mortality found on plants. Conversely, in SM, PM and HP, soil moisture remained below the wilting point less period than C and, the plant available water was also higher. In these treatments, the survival sapling rates measured were the highest. SH showed water holding capacity slightly more limited than C. For this treatment, the survival sapling rates measured were the lowest. In conclusion, from a land management standpoint, the PM, SM and HP have been proved as a significant method to reduce sapling mortality rates during the Mediterranean summer drought.es_ES
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.es_ES
dc.language.isoenges_ES
dc.publisherEditorial Universidad de Almeríaes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectDeforestaciónes_ES
dc.subject.otherAfforestationes_ES
dc.subject.otherWateres_ES
dc.subject.otherRestorationes_ES
dc.subject.otherSoiles_ES
dc.subject.otherOrganic amedmentses_ES
dc.titleEffect of organic amendments on the afforestation performance of plant species on degraded semiarid conditionses_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.centroFacultad de Filosofía y Letrases_ES
dc.relation.eventtitle4th Biohydrology Conferencees_ES
dc.relation.eventplaceAlmeriaes_ES
dc.relation.eventdateseptiembre 2016es_ES
dc.cclicenseby-nc-ndes_ES


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