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Stable isotope ratios of soil carbonate and soil organic matter as indicators of forest invasion of prairie near Ames, Iowa

Stable isotope ratios of soil carbonate and soil organic matter as indicators of forest invasion... Stable isotope ratios of pedogenic carbonate and organic matter were measured in a prairie-transition-forest soil biosequence near Ames, Iowa to determine the vegetation succession. The modern vegetation is dominated by non-native C 3 plants which have been introduced by agricultural practices. The δ 13 C values of soil organic matter from the prairie and forest endmembers indicate C 4 and C 3 dominated ecosystems, respectively, during the accumulation of soil organic matter. Pedogenic carbonate from all soils, including rare pedogenic carbonate from the forested soil, has an average δ 13 C of-2.0‰, indicating that the carbonate formed under a C 4 vegetation. These results indicate that the ecosystem was a C 4 -dominated prairie and therefore suggest a recent arrival of forests and other C 3 plants in the area. This study also implies that the primary features of the transitional Lester soil series, which has soil properties intermediate between Alfisols and Molisolls, formed under prairie conditions and were overprinted by an invading forest. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Oecologia Springer Journals

Stable isotope ratios of soil carbonate and soil organic matter as indicators of forest invasion of prairie near Ames, Iowa

Wang, Yang; Cerling, T.; Effland, W.
Oecologia , Volume 95 (3) – Sep 1, 1993
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References (41)

Publisher
Springer Journals
Copyright
Copyright © 1993 by Springer-Verlag
Subject
Life Sciences; Ecology; Plant Sciences
ISSN
0029-8549
eISSN
1432-1939
DOI
10.1007/BF00320990
Publisher site
See Article on Publisher Site

Abstract

Stable isotope ratios of pedogenic carbonate and organic matter were measured in a prairie-transition-forest soil biosequence near Ames, Iowa to determine the vegetation succession. The modern vegetation is dominated by non-native C 3 plants which have been introduced by agricultural practices. The δ 13 C values of soil organic matter from the prairie and forest endmembers indicate C 4 and C 3 dominated ecosystems, respectively, during the accumulation of soil organic matter. Pedogenic carbonate from all soils, including rare pedogenic carbonate from the forested soil, has an average δ 13 C of-2.0‰, indicating that the carbonate formed under a C 4 vegetation. These results indicate that the ecosystem was a C 4 -dominated prairie and therefore suggest a recent arrival of forests and other C 3 plants in the area. This study also implies that the primary features of the transitional Lester soil series, which has soil properties intermediate between Alfisols and Molisolls, formed under prairie conditions and were overprinted by an invading forest.

Journal

Oecologia – Springer Journals

Published: Sep 1, 1993

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