TY - JOUR

T1 - Characterization of humic acids from antarctic soils by nuclear magnetic resonance

AU - Chukov, S.N.

AU - Abakumov, E.V.

AU - Tomashunas, V.M.

PY - 2015

Y1 - 2015

N2 - The elemental composition and structural features of humic acids (HAs) from Antarctic soils (King George Island, Larsemann Hills, Lindsay Island) have been studied. It has been found that their elemental composition and molecular structure are intermediate between those of the HAs and fulvic acids (FAs) of Eurasian soils (from the average values). The degree of hydrophilicity of the studied HAs is comparable to that of FAs. The low content of aromatic moieties in the HAs is related to the absence or very low proportions of phenyl propane fragments in the sources of humus formation. It has been shown that the HAs from Antarctic soils compose a separate group of humic acids whose specific features are related to hard climatic conditions and specific features of humus formation sources

AB - The elemental composition and structural features of humic acids (HAs) from Antarctic soils (King George Island, Larsemann Hills, Lindsay Island) have been studied. It has been found that their elemental composition and molecular structure are intermediate between those of the HAs and fulvic acids (FAs) of Eurasian soils (from the average values). The degree of hydrophilicity of the studied HAs is comparable to that of FAs. The low content of aromatic moieties in the HAs is related to the absence or very low proportions of phenyl propane fragments in the sources of humus formation. It has been shown that the HAs from Antarctic soils compose a separate group of humic acids whose specific features are related to hard climatic conditions and specific features of humus formation sources

KW - soil

KW - 13-C NMR

KW - Antarctica

U2 - 10.1134/S1064229315110046

DO - 10.1134/S1064229315110046

M3 - Article

VL - 48

SP - 1207

EP - 1211

JO - Eurasian Soil Science

JF - Eurasian Soil Science

SN - 1064-2293

IS - 11

ER -