Soil Organic Matter Composition of Arenosols in Western Rhodopes Mountain, Bulgaria
2024
Ivaylo Kirilov | Plamen Ivanov | Biser Hristov
The paper studies soil organic matter in sandy soils from Western Rhodopes region, which fall within the territory of Pazardzhik district of the South central planning region in Bulgaria. Brief information on the morphological characteristics of the soils established so far and their initial studies are presented. The composition of soil organic matter is determined by analysing its extractable (soluble) fractions and insoluble residue. The humus content of studied soils is discussed by comparison with soils of the same soil type and those with similar stage of development of soil-forming processes. The state of soil organic matter is evaluated according to various indicators related to the degree of humification, the state of humic acids and the type of humus in surface horizons.
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