作者: Seiichi Nishimura , Hiroko Akiyama , Shigeto Sudo , Tamon Fumoto , Weiguo Cheng
DOI: 10.1080/00380768.2010.551346
关键词: Multiple cropping 、 Crop cultivation 、 Greenhouse gas 、 Cropping 、 Crop rotation 、 Nitrous oxide 、 Agronomy 、 Upland rice 、 Environmental science 、 Paddy field
摘要: Since crop rotation between paddy rice and upland crops is widely conducted in Japan other Asian countries, the effect of on greenhouse gas emission should be clarified. In this study, methane (CH4) nitrous oxide (N2O) fluxes were simultaneously measured for two years from 2004 to 2005 a field with three different cultivation histories, i.e. consecutive (PR), single cropping (UR), double soybean wheat (SW) preceding 2002 2003. 2004, cumulative CH4 emissions UR SW plots 511 2817 g CH4 m−2 y−1, which 8 46%, respectively, that PR (6092 g CH4 m−2 y−1). 2005, 5123 1331 g 87 23%, (5893 g CH4 m−2 y−1), although differences not statistically significant. The soil reduction/oxidation potential (Eh) p...