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dc.contributorZucca, Claudioen_US
dc.contributorAKȘİT, İhsanen_US
dc.contributorKAYA, Zülküfen_US
dc.contributorKapur, Selimen_US
dc.creatorMadrau, Salvatoreen_US
dc.identifier.citationSalvatore Madrau, Claudio Zucca, İhsan AKȘİT, Zülküf KAYA, Selim Kapur. (20/2/2017). Tree-induced changes in a Terra Rossa soil under olive. Observations from an integrated field study. Turkish Journal of Agriculture and Forestry, 41, pp. 23-34.en_US
dc.description.abstractA range of indicators including chemical, physical, morphological, and clay mineral properties were investigated to support an integrated evaluation of the changes induced by a long established olive grove on a red Mediterranean soil. The study area was located in Sardinia (Italy). Two soil profiles were studied in a site where land use had remained unchanged for the previous 150 years: one under the canopy and around the trunk of an olive tree and one between the trees. Chemical analyses including organic matter fractions were performed by horizon. Undisturbed soil samples were collected from aggregates for thin section and scanning electron microscopy (SEM) analyses, complemented by clay mineralogy. Relative compaction was observed in tree topsoil due to the pressure of the anchoring roots. Lower compaction, higher porosity, and less developed micro-aggregates were observed in deeper horizons in relation with the loosening action induced by roots. Sharper vertical chemical gradients were determined under the tree. Stress features were observed in thin sections from all the horizons. Traces of smectite were determined as indicator of past shrink–swell processes suggesting that the present-day dominance of illite-like minerals might be explained by transformation of smectite induced by pedogenesis and by the long-lasting K-enriching action of the plants. Our findings indicate the need to undertake more systematic, integrated, and comparative future research on this subject.en_US
dc.publisherScientific and Technical Research Council of Turkeyen_US
dc.sourceTurkish Journal of Agriculture and Forestry;41,(2016) Pagination 23,34en_US
dc.subjectstress featuresen_US
dc.subjectillite-like mineralsen_US
dc.titleTree-induced changes in a Terra Rossa soil under olive. Observations from an integrated field studyen_US
dc.typeJournal Articleen_US
cg.creator.idZucca, Claudio: 0000-0002-8636-0511en_US
cg.contributor.centerUniversity of Sassari - UNISSen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerErciyes University - ERUen_US
cg.contributor.centerCukurova University - CU Turkeyen_US
cg.contributor.crpCGIAR Research Program on Dryland Systems - DSen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionWestern Asiaen_US
dc.identifier.statusOpen accessen_US

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