Effect of barley straw biochar application on greenhouse gas emissions from upland soil for Chinese cabbage cultivation in short-term laboratory experiments

Se Won Kang, Dong Cheol Seo, Yong Hwa Cheong, Ju Wang Park, Jong Hwan Park, Hang Won Kang, Ki Do Park, Yong Sik Ok, Ju Sik Cho

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Abstract

Chinese cabbage was cultivated in upland soil with the addition of biochar in order to investigate the potential for reduction of greenhouse gas emissions. Barley straw biochar (BSB) was introduced in a Wagner pot (1/5000a) in amounts of 0 (BSB0, control), 100 (BSB100), 300 (BSB300), and 500 (BSB500) kg 10a-1. After the addition of BSB into the upland soil, carbon dioxide (CO2) emission increased while methane (CH4) and nitrous oxide (N2O) emissions decreased. The highest CO2 flux was measured for the BSB500 sample, (84.6 g m-2) followed by BSB300, BSB100, and BSB0 in decreasing order. Relative to those of control, the total CH4 flux and N2O flux for the BSB500 treatment were lower by 31.6% and 26.1%, respectively. The global warming potential (GWP) of the treatment without biochar was 281.4 g CO2 m-2 and those for treatments with biochar were in the range from 194.1 to 224.9 g CO2 m-2. Therefore, introducing BSB into upland soil to cultivate Chinese cabbages can reduce the global warming potential.

Original languageEnglish
Pages (from-to)693-702
Number of pages10
JournalJournal of Mountain Science
Volume13
Issue number4
DOIs
Publication statusPublished - 2016 Apr 1
Externally publishedYes

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Keywords

  • Biochar
  • Carbon dioxide
  • Global warming
  • Methane
  • Nitrous oxide

ASJC Scopus subject areas

  • Global and Planetary Change
  • Geography, Planning and Development
  • Geology
  • Earth-Surface Processes
  • Nature and Landscape Conservation

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