The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Turnover and storage of C and N in five density fractions from California annual grassland surface soils
Abstract
We measured 14 C/12 C in density fractions from soils collected before and after atmospheric thermonuclear weapons testing to examine soil organic matter (SOM) dynamics along a 3 million year California soil chronosequence. The mineral‐free particulate organic matter (FPOM; <1.6 g cm−3) mainly contains recognizable plant material, fungal hyphae, and charcoal. Mineral‐associated light fractions (1.6–2.2 g cm−3) display partially or completely humified fine POM, while the dense fraction (>2.2 g cm−3) consists of relatively OM‐free sand and OM‐rich clays. Three indicators of decomposition (C:N, δ 13 C, and δ 15 N) all suggest increasing SOM decomposition with increasing fraction density. The Δ 14 C‐derived SOM turnover rates suggest that ≥90% of FPOM turns over in <10 years. The four mineral‐associated fractions contain 69–86% “stabilized” (decadal) SOM with the remainder assumed to be “passive” (millenial) SOM. Within each soil, the four mineral‐associated fractions display approximately the same residence time (34–42 years in 200 kyr soil, 29–37 years in 600 kyr soil, and 18–26 years in 1–3 Myr soils), indicating that a single stabilized SOM “pool” exists in these soils and may turn over primarily as a result of soil disruption.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Organic matter and water-stable aggregates in soils
TISDALL, J. M., & OADES, J. M. (1982) · Journal of Soil Science · doi:10.1111/j.1365-2389.1982.tb01755.x · Cited by 6,267
Changes in soil carbon inventories following cultivation of previously untilled soils
Davidson, E. A., & Ackerman, I. L. (1993) · Biogeochemistry · doi:10.1007/bf00000786 · Cited by 927
Texture, Climate, and Cultivation Effects on Soil Organic Matter Content in U.S. Grassland Soils
Burke, I. C., Yonker, C. M., Parton, W. J., Cole, C. V., Flach, K., & Schimel, D. S. (1989) · Soil Science Society of America Journal · doi:10.2136/sssaj1989.03615995005300030029x · Cited by 876
The role of biology in the formation, stabilization and degradation of soil structure
Oades, J. M. (1993) · Geoderma · doi:10.1016/0016-7061(93)90123-3 · Cited by 710
Soil structure and carbon cycling
Golchin, A., Oades, J., Skjemstad, J., & Clarke, P. (1994) · Australian Journal of Soil Research · doi:10.1071/sr9941043 · Cited by 669
Cited by
SOM fractionation methods: Relevance to functional pools and to stabilization mechanisms
von Lützow, M., Kögel-Knabner, I., Ekschmitt, K., Flessa, H., Guggenberger, G., Matzner, E., & Marschner, B. (2007) · Soil Biology and Biochemistry · doi:10.1016/j.soilbio.2007.03.007 · Cited by 1,590
How relevant is recalcitrance for the stabilization of organic matter in soils?
Marschner, B., Brodowski, S., Dreves, A., Gleixner, G., Gude, A., Grootes, P. M., Hamer, U., Heim, A., Jandl, G., Ji, R., et al. (2008) · Journal of Plant Nutrition and Soil Science · doi:10.1002/jpln.200700049 · Cited by 743
Organic C and N stabilization in a forest soil: Evidence from sequential density fractionation
Sollins, P., Swanston, C., Kleber, M., Filley, T., Kramer, M., Crow, S., Caldwell, B. A., Lajtha, K., & Bowden, R. (2006) · Soil Biology and Biochemistry · doi:10.1016/j.soilbio.2006.04.014 · Cited by 448
Sollins, P., Kramer, M. G., Swanston, C., Lajtha, K., Filley, T., Aufdenkampe, A. K., Wagai, R., & Bowden, R. D. (2009) · Biogeochemistry · doi:10.1007/s10533-009-9359-z · Cited by 365
The turnover of organic carbon in subsoils. Part 2. Modelling carbon turnover
Jenkinson, D. S., & Coleman, K. (2008) · European Journal of Soil Science · doi:10.1111/j.1365-2389.2008.01026.x · Cited by 241
Metadata
- Authors
- Baisden, W. T., Amundson, R., Cook, A. C., & Brenner, D. L.
- Venue
- Global Biogeochemical Cycles
- Publisher
- American Geophysical Union (AGU)
- Published
- 2002-12
- Volume
- 16
- Issue
- 4
- ISSN
- 0886-6236 (ISSN-L)
- 1944-9224
- OpenAlex
- W2151543090
- Cited by
- 316
- References
- 5
- FWCI
- 11.24
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Turnover and storage of C and N in five density fractions from California annual grassland surface soils. https://app.cochat.ai/papers/10.1029/2001gb001822
- The paper
- Baisden, W. T., Amundson, R., Cook, A. C., & Brenner, D. L. (2002). Turnover and storage of C and N in five density fractions from California annual grassland surface soils. Global Biogeochemical Cycles. https://doi.org/10.1029/2001gb001822
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
