| 我国农田土壤的主要温室气体CO2、CH4和N2O排放研究 |
| 摘要点击 2632 全文点击 1952 投稿时间：1995-07-02 |
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| 中文关键词 温室气体 农业源 农田土壤 |
| 英文关键词 greenhouse gases agricultural source emission impacts |
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| 中文摘要 |
| 讨论土壤中主要温室体CO2、CH4和N2O的排放过程。计算我国农田生态系统排放CO2、CH4和N2O的总量。1990年,中国地区CO2、CH4和N2O农田排放源强分别是260TgCO2,17.5TgCH4和0.096TgN,它们占我国相应这些气体排放总量的8%,50%和10%。论述了温室气体浓度增加可能对农业产生的影响及应采取的控制对策。 |
| 英文摘要 |
| The emissions processes of greenhouse gases such as CO2,CH4 and N2O from agricultural soils have been studied in this paper.The source strengths of the gases emission from agricultural activities are calculated as 260 Tg of CO2,17.5 Tg of CH4,and 0.096 Tg of N,which accound for about 8%,50%,and 10% of their total emissions in China.An effect of moresing the concentration of these greenhouse gases in atmosphere on agricultural production are also discussed.Some of control strategies on the gases emission from soils,are suggested. |
