Humic acids quality of Cambisols developed on gneiss and amphibolite

0386578 - GLÚ 2013 RIV CZ eng J - Článek v odborném periodiku
Pospíšilová, Ľ. - Žigová, Anna - Šťastný, Martin - Liptaj, T.
Humic acids quality of Cambisols developed on gneiss and amphibolite.
Acta geodynamica et geomaterialia. Roč. 9, č. 4 (2012), s. 503-510. ISSN 1214-9705. E-ISSN 2336-4351
Grant CEP: GA ČR GA526/08/0434
Institucionální podpora: RVO:67985831
Klíčová slova: Cambisols * parent material * arable soil, * grassland soil * X-ray diffraction * humic acids * SRATR FTIR and 13C NMR spectroscopy
Kód oboru RIV: DF - Pedologie
Impakt faktor: 0.530, rok: 2011
http://www.irsm.cas.cz/materialy/acta_content/2012_04/8.Pospisilova.pdf

Chemical composition and structure of humic acids isolated from Cambisols forming on gneiss and amphibolite were studied. Cambisols differ in pH, cation exchange capacity, mineralogy composition, organic carbon input, plant residue and type of management. 13C NMR and FTIR spectroscopy were used to show the main differences in humic substances quality. Humic acids isolated from soils developed on gneiss and amphibolite had wide variety of functional groups and different content of aromatic and aliphatic groups. Humic acids (HA) in arable soils contained more aromatic compounds and carbon in their molecule to compare with HA isolated from grassland. Forming of higher stability aggregates was connected with higher content of aliphatic groups in HA isolated from the grassland. Generally, humic acids in Cambisols represent young humic acids, with lower carbon content and high tendency to oxidation processes. Their chemical activity was mainly influenced by chemical composition and functional groups content.
Trvalý link: http://hdl.handle.net/11104/0215863