Premium
Properties and composition of soil organic matter in forest and arable soils of schleswig‐holstein. 2. litter and humic compounds in mineral horizons
Author(s) -
Beyer Lothar
Publication year - 1996
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.1996.3581590110
Subject(s) - environmental chemistry , soil water , soil organic matter , organic matter , subsoil , chemistry , soil horizon , litter , total organic carbon , soil carbon , humus , soil science , environmental science , agronomy , organic chemistry , biology
Organic matter composition is an important soil constituent with regard to function in soil ecosystems. In the recent paper litter and humic compound contents from about 100 mineral soil investigations are presented. The soil horizons are divided into four groups (Ah, Ap, M. Bh) in order to compare the SOM quality. Ap and Ah horizons showed a similar litter and humic compound distribution. Structural differences in the humic compound fractions were only visible with CPMAS 13 C‐NMR. SOM‐containing non‐spodic subsoil horizons had a similar SOM quality as the A horizons. In the Bh horizons the humic compounds dominated with about 75% in the SOM. Alkylic and O‐alkylic carbon units are the main fractions. The combination of the solid‐state 13 C‐NMR spectroscopy of whole soil samples and the wet chemical analysis of litter compounds allowed the estimation of the liner and chemically defined humic compound distribution in soil samples.