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

作　　者：Gafur GOZUKARA Yakun ZHANG Alfred EHARTEMINK Sevda ALTUNBAS Mustafa SARI 

机构地区：[1]Department of Soil Science and Plant Nutrition,Eskisehir Osmangazi University,Eskisehir 26160(Turkey) [2]Department of Soil Science,FD Hole Soils Lab,1525 Observatory Drive,University of Wisconsin-Madison,Madison 53706(USA) [3]Department of Soil Science and Plant Nutrition,Akdeniz University,Antalya 07059(Turkey)

出　　处：《Pedosphere》2021年第6期882-891,共10页土壤圈（英文版）

基　　金：supported by the Scientific Research Projects(BAP)(No.2017-2800)of Akdeniz University,Turkey;supported by the Scientific Research Projects(BAP)(No.2019-2757)of Eskisehir Osmangazi University,Turkey for postdoc researchers at the Department of Soil Science,University of Wisconsin-Madison,USA。

摘　　要：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 2019.In this study,we investigated how the soil has changed in the lacustrine material.Three 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 sampled.The chronosequence and biosequence soil profiles represented various distances from the Burdur Lake and showed different stages of lacustrine evolution.Soil 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 profiles.The 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 

分 类 号：S151[农业科学—土壤学]