Black carbon contribution to stable humus in German arable soils

被引:121
作者
Brodowski, Sonja [1 ]
Amelung, Wulf [1 ]
Haumaier, Ludwig [1 ]
Zech, Wolfgang [1 ]
机构
[1] Univ Bayreuth, Inst Soil Sci & Soil Geog, D-95440 Bayreuth, Germany
关键词
black carbon; Bad Lauchstadt; Halle; Rotthalmunster; soil particle-size fractions; soil density fractions;
D O I
10.1016/j.geoderma.2007.02.004
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
There is evidence of black carbon (BC contributing to stable humus in the soil environment but its quantity and fate are poorly examined. We used benzene polycarboxylic acids (BPCAs) as markers to assess the contents and distribution of BC in soils and soil fractions of the long-term field experiments in Halle (Haplic Phaeozem), Bad Lauchstadt (Haplic Chemozem), Rotthalmunster (Haplic Luvisol) and an additional site near Bad Lauchstadt (Haplic Phaeozem), Germany. Black carbon comprised 11.9-13.2% of organic C in the top soils (0-10 cm) of the black soils located around Halle and Bad Lauchstadt while it explained only 2.7% of organic carbon in the Haplic Luvisol of Rotthalmunster. The BPCA pattern at Bad Lauchstadt and Halle suggested that two thirds of BC were of fossil origin. In general, BC contents (in g kg(-1) soil) decreased with increasing soil depth. The C-normalized BC concentrations, however, increased and reached 35 +/- 7% of organic carbon at a depth of 87-114 cm. With increasing depth BC was increasingly localized in the coarse silt and sand fractions and the heavy mineral fraction. This indicated that BC was connected to the minerals of this size and preserved there. Inorganic fertilization for > 30 years did not affect BC contents. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:220 / 228
页数:9
相关论文
共 45 条
[1]  
*AG BOD, 1994, BOD KART
[2]   Minimisation of organic matter disruption during particle-size fractionation of grassland epipedons [J].
Amelung, W ;
Zech, W .
GEODERMA, 1999, 92 (1-2) :73-85
[3]  
[Anonymous], 1988, WORLD RESOURCES REPO
[4]   Stability of elemental carbon in a savanna soil [J].
Bird, MI ;
Moyo, C ;
Veenendaal, EM ;
Lloyd, J ;
Frost, P .
GLOBAL BIOGEOCHEMICAL CYCLES, 1999, 13 (04) :923-932
[5]   Aggregate-occluded black carbon in soil [J].
Brodowski, S. ;
John, B. ;
Flessa, H. ;
Amelung, W. .
EUROPEAN JOURNAL OF SOIL SCIENCE, 2006, 57 (04) :539-546
[6]   Morphological and chemical properties of black carbon in physical soil fractions as revealed by scanning electron microscopy and energy-dispersive X-ray spectroscopy [J].
Brodowski, S ;
Amelung, W ;
Haumaier, L ;
Abetz, C ;
Zech, W .
GEODERMA, 2005, 128 (1-2) :116-129
[7]   Revised black carbon assessment using benzene polycarboxylic acids [J].
Brodowski, S ;
Rodionov, A ;
Haumaier, L ;
Glaser, B ;
Amelung, W .
ORGANIC GEOCHEMISTRY, 2005, 36 (09) :1299-1310
[8]  
Christensen B.T., 1992, Advances in Soil Science, V20, P1, DOI DOI 10.1007/978-1-4612-2930-8_1
[9]  
CHRISTENSEN BT, 1996, ADV SOIL SCI STRUCTU, P97
[10]   LONG-TERM TRENDS IN FERTILITY OF SOILS UNDER CONTINUOUS CULTIVATION AND CEREAL CROPPING IN SOUTHERN QUEENSLAND .3. DISTRIBUTION AND KINETICS OF SOIL ORGANIC-CARBON IN PARTICLE-SIZE FRACTIONS [J].
DALAL, RC ;
MAYER, RJ .
AUSTRALIAN JOURNAL OF SOIL RESEARCH, 1986, 24 (02) :293-300