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Soil chronosequence and biosequence on old lake sediments of the Burdur Lake in Turkey

Pedosphere 2021年第6期31卷 882-891页

作者： Gafur GOZUKARA Yakun ZHANG Alfred EHARTEMINK Sevda ALTUNBAS Mustafa SARI Department of Soil Science and Plant Nutrition Eskisehir Osmangazi UniversityEskisehir 26160(Turkey) Department of Soil Science FD Hole Soils Lab1525 Observatory DriveUniversity of Wisconsin-MadisonMadison 53706(USA) Department of Soil Science and Plant Nutrition Akdeniz UniversityAntalya 07059(Turkey)

The Burdur Lake is located in the southwest of Turkey,and its area has decreased by 40% from 211 km^(2) in 1975 to 126 km^(2) in *** this study,we investigated how the soil has changed in the lacustrine *** soil profiles were sampled from the former lakebed(chronosequence profiles:P1,2007;P2,1994;and P3,1975),and three soil profiles under different land use types(biosequence profiles:P4,native forest vegetation;P5,agriculture;and P6,lakebed)were *** chronosequence and biosequence soil profiles represented various distances from the Burdur Lake and showed different stages of lacustrine *** electrical conductivity(EC;18.1 to 0.4 dS m^(-1)),exchangeable Na^(+)(34.7 to 1.4 cmol kg^(-1))and K^(+)(0.61 to 0.56 cmol kg^(-1)),and water-soluble Cl^(-)(70.3 to 2.1 cmol L^(-1))and SO_(4)^(2-)(275.9 to 25.0 cmol L^(-1))decreased with increasing distance from the Burdur Lake,whereas the A horizon thickness(10 to 48 cm),structure formation(0 to 48 cm),gleization-oxidation depth(0 to 79 cm),and montmorillonite and organic matter(OM;25.9 to 46.0 g kg^(-1))contents increased in the chronosequence soil *** formation of P3 in the chronosequence and P5 in the biosequence soil profiles increased due to longer exposure to pedogenic processes(time,land use,vegetation,etc.).Changes in EC,exchangeable cation(Na^(+) and K^(+))and water-soluble anion(Cl^(-) and SO_(4)^(2-))concentrations of the salt-enriched horizon,OM,gleization-oxidation depth,A horizon thickness,and structure formation of the chronosequence and biosequence soil profiles(especially the topsoil horizon)were highly related to the distance from the Burdur Lake,time,and land use.

关键词： biosequence soil profile chronosequence soil profile lacustrine material lakebed soil formation

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