Exploring Soil Characteristics and Agricultural Sustainability in Western Anatolia's Colluvial Deposits

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Altunbaş Beritanlı S., Atalay İ., Siler M., Tolay İ.

journal of ecologycal harmony, vol.1, no.1, pp.24-31, 2025 (Peer-Reviewed Journal)

Abstract

It is claimed that colluvial lands are generally unsuitable for agriculture due to slope, shallow soil and nutritional deficiency. However, due to increasing population, agriculture in marginal areas such as colluvial lands becomes a necessity as normal agricultural areas are limited in agricultural production. This study aims to characterize the soil properties of colluvial deposits in western Anatolia, specifically focusing on their agricultural potential for olive, fig, and grape cultivation. Geological origins and topographic features of colluvial were initially assessed, followed by the collection of soil samples from both natural and agricultural areas. Comprehensive analyses were conducted on both colluvial materials and the corresponding soil samples. The findings were statistically evaluated using principal component analysis, with a subsequent discussion on the agricultural sustainability of the soils for the selected plants. The results indicate that the analyzed colluvial lands are generally unsuitable for agriculture due to factors such as slope, erosion risk, shallow soil depth, low soil organic matter, and limited nutritional capacity. However, under favorable climatic conditions, certain specialty crops, such as olives and figs, can thrive, offering economic benefits to the local population. Despite the overall limitations for traditional agriculture, the cultivation of these specific plants contributes to both the economic well-being of the region and the overall sustainability of agriculture in the area.

Keywords: Colluvial, Sustainable, Agriculture ÖZ