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https://open.uns.ac.rs/handle/123456789/4318
Title: | The sensitivity of water extractable soil organic carbon fractions to land use in three soil types | Authors: | Ćirić, Vladimir Belić, Milivoj Nešić, Ljiljana Srđan, Šeremešić Pejić, Borivoj Bezdan, Atila Manojlović, Mia |
Issue Date: | 1-Dec-2016 | Journal: | Archives of Agronomy and Soil Science | Abstract: | © 2016 Informa UK Limited, trading as Taylor & Francis Group. Soil organic carbon (SOC) has a high impact on the sustainability of ecosystems, global environmental processes, soil quality and agriculture. Long-term tillage usually leads to SOC depletion. The purpose of this study was to determine the impact of different land uses on water extractable organic carbon (WEOC) fractions and to evaluate the interaction between the WEOC fractions and other soil properties. Using an extraction procedure at 20°C and 80°C, two fractions were obtained: a cold water extractable organic carbon (CWEOC) and a hot water extractable organic carbon (HWEOC). The results suggest that there is a significant impact from different land uses on WEOC. A lower relative contribution of WEOC in SOC and a lower concentration of labile WEOC fractions are contained in arable soil compared to forestlands. Chernozem soil was characterized by a lower relative contribution of WEOC to the SOC and thus higher SOC stability in contrast to Solonetz and Vertisol soils. Both CWEOC and HWEOC are highly associated with SOC in the silt and clay fraction (<53 µm) and were slightly associated with SOC in the macroaggregate classes. The WEOC fractions were highly and positively correlated with the SOC and mean weight diameter. | URI: | https://open.uns.ac.rs/handle/123456789/4318 | ISSN: | 03650340 | DOI: | 10.1080/03650340.2016.1165345 |
Appears in Collections: | POLJF Publikacije/Publications |
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