The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.
Re‐quantifying the emission factors based on field measurements and estimating the direct N2O emission from Chinese croplands
Open accessAbstract
The authors collect 54 direct N 2 O emission factors (EFds) obtained from 12 sites of Chinese croplands, of which 60% are underestimated by 29% and 30% are overestimated by 50% due to observation shortages. The biases of EFds are corrected and their uncertainties are re‐estimated. Of the 31 site‐scale EFds, 42% are lower by 58% and 26% are higher by 143% than the Intergovernmental Panel on Climate Change default. Periodically wetting/drying the fields or doubling nitrogen fertilizers may double or even triple an EFd. The direct N 2 O emission from Chinese croplands is estimated at 275 × 10 9 g N 2 O‐N yr−1 in the 1990s, of which ∼20% is due to vegetable cultivation. The great uncertainty of this estimate, −79% to 135%, is overwhelmingly due to the huge uncertainty in estimating EFds (−78 ± 15% to 129 ± 62%). Direct N 2 O emission intensities significantly depend upon the economic situation of the region, implicating a larger potential emission in the future.
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
Watson, R., Albritton, D. L., Barker, T., Baskmakov, I., Canziani, O. F., Christ, R., Ulrich Cubasch, B., Davidson, O., Gitay, H., Griggs, D., et al. (2001) · Cited by 3,473
Li, C., Frolking, S., & Frolking, T. A. (1992) · Journal of Geophysical Research: Atmospheres · doi:10.1029/92jd00509 · Cited by 1,463
Parton, W. J., Scurlock, J. M. O., Ojima, D. S., Gilmanov, T. G., Scholes, R. J., Schimel, D. S., Kirchner, T., Menaut, J., Seastedt, T., Garcia Moya, E., et al. (1993) · Global Biogeochemical Cycles · doi:10.1029/93gb02042 · Cited by 1,319
Direct emission of nitrous oxide from agricultural soils
Bouwman, A. F. (1996) · Nutrient Cycling in Agroecosystems · doi:10.1007/bf00210224 · Cited by 867
Dobbie, K. E., McTaggart, I. P., & Smith, K. A. (1999) · Journal of Geophysical Research: Atmospheres · doi:10.1029/1999jd900378 · Cited by 708
Cai, Z., Xing, G., Yan, X., Xu, H., Tsuruta, H., Yagi, K., & Minami, K. (1997) · Plant and Soil · doi:10.1023/a:1004263405020 · Cited by 609
Dobbie, K. E., & Smith, K. A. (2003) · Global Change Biology · doi:10.1046/j.1365-2486.2003.00563.x · Cited by 506
NOx And N2O Emissions From Soil
Williams, E. J., Hutchinson, G. L., & Fehsenfeld, F. C. (1992) · Global Biogeochemical Cycles · doi:10.1029/92gb02124 · Cited by 489
H�non, M. (1971) · Astrophysics and Space Science · doi:10.1007/bf00649201 · Cited by 464
Yan, X., Akimoto, H., & Ohara, T. (2003) · Global Change Biology · doi:10.1046/j.1365-2486.2003.00649.x · Cited by 285
Cited by
Zhang, A., Cui, L., Pan, G., Li, L., Hussain, Q., Zhang, X., Zheng, J., & Crowley, D. (2010) · Agriculture, Ecosystems & Environment · doi:10.1016/j.agee.2010.09.003 · Cited by 852
Zou, J., Huang, Y., Jiang, J., Zheng, X., & Sass, R. L. (2005) · Global Biogeochemical Cycles · doi:10.1029/2004gb002401 · Cited by 781
Self-citationTraditional agriculture: a climate-smart approach for sustainable food production
Singh, R., & Singh, G. S. (2017) · Energy, Ecology and Environment · doi:10.1007/s40974-017-0074-7 · Cited by 365
Kim, D.-G., Hernandez-Ramirez, G., & Giltrap, D. (2013) · Agriculture, Ecosystems & Environment · doi:10.1016/j.agee.2012.02.021 · Cited by 306
Zheng, X., Mei, B., Wang, Y., Xie, B., Wang, Y., Dong, H., Xu, H., Chen, G., Cai, Z., Yue, J., et al. (2008) · Plant and Soil · doi:10.1007/s11104-008-9673-6 · Cited by 290
Self-citation
Metadata
- Authors
- Zheng, X., Han, S., Huang, Y., Wang, Y., & Wang, M.
- Venue
- Global Biogeochemical Cycles
- Publisher
- American Geophysical Union (AGU)
- Published
- 2004-06
- Volume
- 18
- Issue
- 2
- ISSN
- 0886-6236 (ISSN-L)
- 1944-9224
- OpenAlex
- W1621149760
- Cited by
- 252
- References
- 26
- FWCI
- 9.33
- Type
- journal article
- Language
- en
- Open access
- bronze
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: Re‐quantifying the emission factors based on field measurements and estimating the direct N2O emission from Chinese croplands. https://app.cochat.ai/papers/10.1029/2003gb002167
- The paper
- Zheng, X., Han, S., Huang, Y., Wang, Y., & Wang, M. (2004). Re‐quantifying the emission factors based on field measurements and estimating the direct N2O emission from Chinese croplands. Global Biogeochemical Cycles. https://doi.org/10.1029/2003gb002167
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.
