The effects of time and spatial change in old lake base on soil formation; sample of lake Burdur basin

At the dynamic water level of Burdur Lake, which continues to be withdrawn dramatically today, a level loss of 14.36 m occurred from 1975 to 2017. As a result of this reduction, 80.90 km2 of lacustrine parent material was emerged. In the research area, 28 soil types were identified on different physiographic units. It has been determined that these 28 different pedones are spread on 4 pedon pliocene aged old lake terraces, on 8 pedon quaternary aged lake bases and in 16 pedon quaternary aged fluvial areas. In 28 different soil profiles identified; pH value 7.54-9.53, electrical conductivity 0.20-18.11 dS/m, lime content %4.62-63.96, organic matter %0.24-9.40, clay content %7.60-83.09, CO3 anion 7.60-83.09 meq/100g, HCO3 anion 0.52-7.26 meq/100g, Cl- anion 1.0-70.30 meq/100g, SO4- anion 0.9-275.93 meq/100g, changeable Na 0.10-34.72 meq/100g, changeable K 0.06-2.55 meq/100g, changeable Ca+Mg 9.12-49.67 meq/100g, KDC values ; 12.01-60.52 meq/100 g, ESP values were determined to be between 0.34-71.36. The profiles within the research area were determined to have A-C horizon sequence. The effects of climatological factors and other soil formation factors during the Pliocene and Quaternary periods are not sufficient for the formation of the B horizon in the profiles within the research area, but it is determined that the soil formation factors cause significant temporal and spatial differences on the morphological, physical, chemical and mineralogical soil properties of the profiles. It was. As a result of these temporal and spatial differences, it has been found that 80,90 km2 old lake basins that were exposed as a result of decreases in the dynamic water level of Burdur Lake (between 1975 and 2017) especially in the study area are suitable for agriculture based on the results of the morphological, physical, chemical and mineralogical analysis of the soils. it is too severe to be.