Red mediterranean soils: Nature, properties, and management of rhodoxeralfs in northern greece

dc.contributor.author	Noulas, C	en
dc.contributor.author	Karyotis, T	en
dc.contributor.author	Charoulis, A	en
dc.contributor.author	Massas, I	en
dc.date.accessioned	2014-06-06T06:49:30Z
dc.date.available	2014-06-06T06:49:30Z
dc.date.issued	2009	en
dc.identifier.issn	00103624	en
dc.identifier.uri	http://dx.doi.org/10.1080/00103620802694381	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/4638
dc.subject	Iron oxides	en
dc.subject	Manganese oxides	en
dc.subject	Pedogenesis	en
dc.subject	Soil management	en
dc.subject.other	Alfisol	en
dc.subject.other	alluvial fan	en
dc.subject.other	bioclimatology	en
dc.subject.other	calcareous soil	en
dc.subject.other	crop production	en
dc.subject.other	erodibility	en
dc.subject.other	erosion control	en
dc.subject.other	iron oxide	en
dc.subject.other	liming	en
dc.subject.other	manganese	en
dc.subject.other	Mediterranean environment	en
dc.subject.other	pedogenesis	en
dc.subject.other	potassium	en
dc.subject.other	red soil	en
dc.subject.other	soil carbon	en
dc.subject.other	soil fertility	en
dc.subject.other	soil horizon	en
dc.subject.other	soil management	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Greece	en
dc.subject.other	Southern Europe	en
dc.title	Red mediterranean soils: Nature, properties, and management of rhodoxeralfs in northern greece	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/00103620802694381	en
heal.publicationDate	2009	en
heal.abstract	The studied Alfisols were developed on Quaternary calcareous deposits and belong to the great group of Rhodoxeralfs. They occur usually in the meso-Mediterranean bioclimatic zone and are affected by water deficit during the summer period. They are located mainly on backslope geomorphic surfaces, old terraces, and alluvial fans, and their erodibility is medium to low. Trends of decreased iron content in the deeper soil layers due to severe drainage conditions may be responsible for relatively low values of free iron oxides (Fed). The rather limited variation of Fed may reflect the specific pedogenetic conditions in which red soils were formed. Indices of pedogenesis [Feo/Fed (Feo: amorphous Fe), Fed-Feo, and iron illuviation index of Fed] indicated that the studied pedons are at different stages of development. Redness indices (RI) of Bt horizons in pedons were found in the following decreasing order: P1 = P5 > P4 = P6 > P2 > P3. There were no clear trends of free manganese oxide (Mnd) distribution with depth. The lack of correlation between Mnd and clay or Fed suggested that Mnd oxides do not take part in the co-illuviation of clay and Fed oxides. Acidity, low content of organic carbon, exchangeable potassium (K+), available phosphorus (P), and water deficit are the main impediments to crop production on these soils. Geomorphological and physicochemical properties suggest that rotation schemes, minimum tillage, liming practices, soil leveling, use of proper irrigation systems, and micronutrient application are among the suggested practices to sustain crop production and mitigate erosion risk. Copyright © Taylor & Francis Group, LLC.	en
heal.journalName	Communications in Soil Science and Plant Analysis	en
dc.identifier.issue	1-6	en
dc.identifier.volume	40	en
dc.identifier.doi	10.1080/00103620802694381	en
dc.identifier.spage	633	en
dc.identifier.epage	648	en