期刊论文

中文

热带作物学报

1000-2561

2014

35

11

2295-2302

10.3969/j.issn.1000-2561.2014.11.033

海南省自然科学基金项目（No.313071） 中央级公益性科研院所基本科研业务费专项（No.1630032014031） 国家水稻丰产科技工程（N0.2013BAD07811）.

本校为第一机构

CH_4和N_2O是水稻生产过程中产生的2种重要温室气体。本文评估了中国中部和南部双季稻生产CH_4和N_2O排放及潜在温室效应环境成本。通过评估1992~2011年华中、华南10省(区)CH_4和N_2O排放量和环境成本发现:(1)20a间,华中、华南CH_4和N_2O年均排放总量变化趋势一致,呈“V”字走势,2003年为转折点。(2)1992~1996、1997~2001、 2002~2006、 2007~2011年华中、华南CH_4和N_2O年均排放量表现逐渐下降,近几年排放量有增加态势;单位面积排放量逐渐增加;CH_4和N_2O排放量对应环境成本变化与其一致。(3)华中CH_4、N_2O)年均排放总量分别为200.13、0.66万t,单位面积排放量分别为234.89、0.89 kg/hm~2。华南...

Paddy field is an important source of atmospheric CH4 and N20. Based on the agricultural date from National Bureau of Statistics of China, from 1992 to 2011, the CH4 and N20 emission and its greenhouse effect environmental cost of double rice cropping in Central and South China were estimated and analyzed, and reduction methods of CH4 and N20 emission were recommended for rice cultivation. The results showed that （1） In Central and South China, the annual emission variation of CH4 and N20 had a similar ＂V＂ trend, and a turning point was hap...