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dc.contributorRyan, Johnen_US
dc.contributorAKÇA, Erhanen_US
dc.contributorCelik, Ismailen_US
dc.contributorPagliai, Marcelloen_US
dc.contributorTulun, Yusufen_US
dc.creatorKapur, Selimen_US
dc.identifier.citationSelim Kapur, John Ryan, Erhan AKÇA, Ismail Celik, Marcello Pagliai, Yusuf Tulun. (29/9/2007). Influence of mediterranean cereal-based rotations on soil micromorphological characteristics. Geoderma, 142 (3-4), pp. 318-324.en_US
dc.description.abstractThe extent to which land management practices are sustainable depends on the maintenance of soil quality from the physical, chemical and biological perspectives. However, there is little information on soil quality in Mediterranean environments where climatic factors limit carbon (C) input and yet promote mineralization of what little C is returned to the soil. The impact of any soil and crop management practice on soil quality attributes in any ecosystem can only be objectively assessed under long-term agronomic trials. In such trials, especially in fragile, semi-arid regions, little emphasis has been given to soil physical parameters despite the perceived importance of aggregation on crop growth, water relations and erosion. In one long-term, cereal-based trial from Syria, four representative crop sequences were selected as they have varying influence on soil organic matter (SOM) levels, e.g., fallow, continuous wheat (Triticum turgidum var durum), vetch (Vicia sativa), and medic (Medicago spp.). These rotations showed increased aggregate stability as SOM increased. Our study examined water-stable aggregates from these rotations at the micromorphological level using the polarizing (on thin sections) and scanning electron microscope. The observations of the influence of SOM at the micro level were inconsistent with those at the macro level as determined by wet sieving. This discrepancy may be related to the age of the SOM and the extent to which organic carbon is intimately mixed with mineral matter. Nevertheless, the changes determined on the shape and porosity characteristics of the water-stable aggregates suggest the value of the micro-scale approach in understanding the mechanism of soil microstructure development. Micromorphology can identify visual details of the physical changes in the evolution of soil microstructure under varying cropping systems. (C) 2007 Published by Elsevier B.V.en_US
dc.publisherElsevier (12 months)en_US
dc.sourceGeoderma;142,(2007) Pagination 318-324en_US
dc.subjectcrop sequencesen_US
dc.subjectmediterranean ecosystemsen_US
dc.subjectwater-stable aggregatesen_US
dc.subjectsoil microstructureen_US
dc.titleInfluence of mediterranean cereal-based rotations on soil micromorphological characteristicsen_US
dc.typeJournal Articleen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerCukurova University - CU Turkeyen_US
cg.contributor.centerExperimental Institute for Soil Study and Defenseen_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.isijournalISI Journalen_US
dc.identifier.statusTimeless limited accessen_US

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