ISOTOPE AND MOLECULAR EVIDENCE FOR DIRECT INPUT OF MAIZE LEAF WAX N-ALKANES INTO CROP SOILS

被引:58
作者
LICHTFOUSE, E
ELBISSER, B
BALESDENT, J
MARIOTTI, A
BARDOUX, G
机构
[1] Laboratoire de Biogéochimie Isotopique, associé à l'Institut National de la Recherche Agronomique, Université Pierre et Marie Curie, 75252 Paris Cedex 05
[2] 75012 Paris, 46, Boulevard de Reuilly
关键词
N-ALKANES; SOIL HYDROCARBONS; LEAF WAXES; ZEA MAYS; C-13 OF LEAF WAX AND SOILS;
D O I
10.1016/0146-6380(94)90181-3
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
The contribution of plant carbon to crop soils can be followed by isotope labelling at natural abundance, such as growing a C-4 plant on a soil which was previously under C-3 vegetation. For this purpose, carbon isotope compositions and relative abundances of n-alkanes of maize leaf waxes and maize crop soils were compared. Isotope values of soil n-alkanes increased with time of maize cultivation as the result of maize carbon integration into soil organic matter. With increasing time of cultivation, the increase in isotopic difference between n-heptacosane (C-27) and n-nonacosane (C-29) is explained, at least partly, by a direct input of maize leaf n-alkanes. The amount of maize-derived carbon within each n-alkane has been calculated by isotopic means.
引用
收藏
页码:349 / 351
页数:3
相关论文
共 14 条
[11]   TRACING BIOGENIC LINKS OF NATURAL ORGANIC-SUBSTANCES AT THE MOLECULAR-LEVEL WITH STABLE CARBON ISOTOPES - N-ALKANES AND N-ALKANOIC ACIDS FROM SEDIMENTS [J].
LICHTFOUSE, EA ;
COLLISTER, JW .
TETRAHEDRON LETTERS, 1992, 33 (52) :8093-8094
[12]   GAS-CHROMATOGRAPHY ISOTOPE RATIO MASS-SPECTROMETRY OF LEAF WAX N-ALKANES FROM PLANTS OF DIFFERING CARBON-DIOXIDE METABOLISMS [J].
RIELEY, G ;
COLLISTER, JW ;
STERN, B ;
EGLINTON, G .
RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 1993, 7 (06) :488-491
[13]   SOURCES OF SEDIMENTARY LIPIDS DEDUCED FROM STABLE CARBON ISOTOPE ANALYSES OF INDIVIDUAL COMPOUNDS [J].
RIELEY, G ;
COLLIER, RJ ;
JONES, DM ;
EGLINTON, G ;
EAKIN, PA ;
FALLICK, AE .
NATURE, 1991, 352 (6334) :425-427
[14]   STABLE CARBON ISOTOPIC CORRELATION OF INDIVIDUAL BIOLIPIDS IN AQUATIC ORGANISMS AND A LAKE BOTTOM SEDIMENT [J].
SPOONER, N ;
RIELEY, G ;
COLLISTER, JW ;
LANDER, M ;
CRANWELL, PA ;
MAXWELL, JR .
ORGANIC GEOCHEMISTRY, 1994, 21 (6-7) :823-827