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Environmental Science and Pollution Research

, Volume 25, Issue 23, pp 22744–22753 | Cite as

Integrated rice-duck farming decreases global warming potential and increases net ecosystem economic budget in central China

  • Feng Sheng
  • Cou-gui Cao
  • Cheng-fang Li
Research Article

Abstract

Over the past decades, many attempts have been made to assess the effects of integrated rice-duck farming on greenhouse gas emissions, use efficient of energy, soil fertility, and economic significance. However, very few studies have been focused on the effects of the farming on net ecosystem economic budget (NEEB). Here, a 2-year field experiment was conducted to comprehensively investigate the effects of ducks raised in paddy fields on CH4 and N2O emissions, global warming potential (GWP), rice grain yield, and NEEB in central China. The experiment included two treatments: integrated rice-duck farming (RD) and conventional rice farming (R). The introduction of ducks into the paddy fields markedly increased the rice grain yield due to enhanced tiller number and root bleeding rate. RD treatment significantly elevated the N2O emissions (p < 0.05) but decreased CH4 emissions (p < 0.05) during rice growing seasons compared with R treatment. Analysis of GWP based on CH4 and N2O emissions showed that compared with R treatment, RD treatment significantly decreased the GWP by 28.1 and 28.0% and reduced the greenhouse gas intensity by 30.6 and 29.8% in 2009 and 2010, respectively. In addition, RD treatment increased NEEB by 40.8 and 39.7% respectively in 2009 and 2010 relative to R treatment. Taken together, our results suggest that the integrated rice-duck farming system is an effective strategy to optimize the economic and environmental benefits of paddy fields in central China.

Keywords

CH4 Global warming potential Greenhouse gas intensity Integrated rice-duck farming N2

Notes

Acknowledgements

We sincerely thank Dr. Philippe Garrigues, the Editor, and anonymous referees for their constructive suggestions and critical comments on the original manuscript.

Funding information

This work is funded by the National Key Research and Development Project of China (2017YFD0301403), Natural Science Foundation of China (31471454, 31671637, 31670447), and Natural Science Foundation of Hubei Province (2016CFA017).

Supplementary material

11356_2018_2380_MOESM1_ESM.docx (13 kb)
Table S1 (DOCX 13 kb)
11356_2018_2380_MOESM2_ESM.xlsx (26 kb)
ESM 1 (XLSX 25 kb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River/College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhanPeople’s Republic of China
  2. 2.Hubei Collaborative Innovation Center for Green Transformation of Bio-ResourcesThe College of Life Sciences, Hubei UniversityWuhanChina
  3. 3.Hubei Collaborative Innovation Center for Grain IndustryYangtze UniversityJingzhouPeople’s Republic of China

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