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Methane emission factors from vietnamese rice production: Pooling data of 36 field sites for meta-analysis

Vo, T. B. T.; Wassmann, R.; Mai, V. T.; Vu, D. Q.; Bui, T. P. L.; Vu, T. H.; Dinh, Q. H.; Yen, B. T.; Asch, F.; Sander, B. O.

Rice production is a significant source of greenhouse gas (GHG) emissions in the national budget of many Asian countries, but the extent of emissions varies strongly across agro-environmental zones. It is important to understand these differences in order to improve the national GHG inventory and effectively target mitigation options. This study presents a meta-analysis of CH4 database emission factors (EFs) from 36 field sites across the rice growing areas of Vietnam and covering 73 cropping seasons. The EFs were developed from field measurements using the closed chamber technique. The analysis for calculating baseline EFs in North, Central and South Vietnam in line with the Intergovernmental Panel on Climate Change (IPCC) Tier 2 methodology was specified for the three cropping seasons being early-(E), mid-(M) and late-year (L) seasons. Calculated average CH$_{4}$ EFs are given in kg ha$^{-1}$ d$^{-1}$ and reflect the distinct seasons in North (E: 2.21; L: 3.89), Central (E: 2.84; M+L: 3.13) and South Vietnam (E: 1.72; M: 2.80; L: 3.58). Derived from the available data of the edapho-hydrological zones of the Mekong River Delta, season-based EFs are more useful than zone-based EFs. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000122768
Veröffentlicht am 31.08.2020
DOI: 10.3390/CLI8060074
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 10.06.2020
Sprache Englisch
Identifikator ISSN: 2225-1154
KITopen-ID: 1000122768
HGF-Programm 12.02.01 (POF III, LK 01) Effects of land use and climate change
Erschienen in Climate
Verlag MDPI
Band 8
Heft 6
Seiten Art. Nr.: 74
Schlagwörter rice, greenhouse gas; methane, nitrous oxide, emission factor, IPCC Tier 2, Vietnam, Mekong River Delta
Nachgewiesen in Dimensions
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