Fe(III) fertilization mitigating net global warming potential and greenhouse gas intensity in paddy rice-wheat rotation systems in China

Environmental Pollution
Shuwei LiuJian-wen Zou

Abstract

A complete accounting of net greenhouse gas balance (NGHGB) and greenhouse gas intensity (GHGI) affected by Fe(III) fertilizer application was examined in typical annual paddy rice-winter wheat rotation cropping systems in southeast China. Annual fluxes of soil carbon dioxide (CO(2)), methane (CH(4)) and nitrous oxide (N(2)O) were measured using static chamber method, and the net ecosystem exchange of CO(2) (NEE) was determined by the difference between soil CO(2) emissions (R(H)) and net primary production (NPP). Fe(III) fertilizer application significantly decreased R(H) without adverse effects on NPP of rice and winter wheat. Fe(III) fertilizer application decreased seasonal CH(4) by 27-44%, but increased annual N(2)O by 65-100%. Overall, Fe(III) fertilizer application decreased the annual NGHGB and GHGI by 35-47% and 30-36%, respectively. High grain yield and low greenhouse gas intensity can be reconciled by Fe(III) fertilizer applied at the local recommendation rate in rice-based cropping systems.

References

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Citations

Sep 17, 2015·Environmental Science and Pollution Research International·Zhiqiang HuShuwei Liu
Jul 28, 2015·Environmental Science and Pollution Research International·Afeng ZhangGenxing Pan
Mar 22, 2016·The Science of the Total Environment·Morteza YaqubiMahmood Sabouhi Sabouni
Jun 28, 2016·The Science of the Total Environment·S C MarisM M Català
Mar 12, 2018·Environmental Science and Pollution Research International·Jiangpei HanLaosheng Wu
Jul 31, 2018·Environmental Microbiology·Casey BryceAndreas Kappler
Jul 6, 2019·Frontiers in Microbiology·Suvendu DasPil Joo Kim
Jan 2, 2021·International Journal of Environmental Research and Public Health·Yaguo JinJianwen Zou

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