Relationships between soil properties, topography and land use in the Van Lake Basin, Turkey

Year 2018, Volume: 7 Issue: 2, 115 - 120, 01.04.2018

Siyami Karaca , Füsun Gülser Ramazan Selçuk

https://doi.org/10.18393/ejss.348412

Cited By: 8

Abstract

The objective of this study was to determine the
relationship between soil properties and different topography and land uses in
the Van Lake Basin, Turkey. It has sharp and sheer slopes, and the big
differences on altitude generally occur from the mountainous formations.
Surface soil samples (0–20 cm) were taken from 40 different points with three
different topography (backslope, footslope and terrace) and three different
landuses (wheat, clover and pasture). Some of the studied soil properties (soil
texture, electrical conductivity [EC], pH, lime content, organic matter
content, macro and micro nutrients) changed in response to land use and
topography. The clay, boron content, pH and EC values increased from the
backslope to the terrace. Soil organic matter and EC values were lower in
cultivated wheat and clover fields than in uncultivated pasture. The EC values
had significant positive correlations with CaCO3, organic matter, K,
B, Cu contents at 5% level and with Mg at 1% level statistically. The soil
nutrient contents of cultivated wheat and clover fields were generally lower
than the uncultivated pasture. The nutrient contents of soils in cultivated
fields decreased due to nutrient uptake by crops. Soil texture, EC, pH, lime,
organic matter and nutrient contents significantly varied in different
topographic positions due to leaching, transporting and accumulation.

Keywords

Land use, nutrient, soil properties, topography

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