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Non-CO_2 Greenhouse Gas Emissions from Agricultural Sector in Russia

机译:俄罗斯农业部门产生的非CO_2温室气体排放量

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摘要

Anthropogenic emissions of methane (CH_4) and nitrous oxide (N_2O) in agriculture of Russian Federation are considered for the period from 1990 to 1999. Domestic livestock and rice cultivation are the sources of CH_4. In 1990, its release to the atmosphere was 5010 Gg. In 1999, it dropped to 2420 Gg. Enteric fermentation gives the major contribution to CH_4 emissions (87%). N_2O emission from agricultural soils was estimated from the input of fertilizer nitrogen (N), biological N fixation, and decomposition of crop residues. N_2O emissions from nitrogen fertilizer input and manure nitrogen were calculated based on country-specific emission factors for major types of cultivated soils and data on N content in animal waste. Crop residues are the main N_2O source in national agriculture. Calculations made with the use of national activity data, show that in 1990 and 1999 they contributed respectively to 30 and 56%% of sectoral emissions. In 1990, total anthropogenic N_2O emission from national agriculture was 280 Gg. In 1999, it dropped to 30% of the 1990 level (88 Gg). The decrease in CH_4 and N_2O emissions is mainly caused by reduction in number of agricultural animals and poultry and decreased fertilizer use in the country.
机译:考虑到1990年至1999年期间俄罗斯联邦农业中的人为排放甲烷(CH_4)和一氧化二氮(N_2O)。家庭畜牧业和水稻种植是CH_4的来源。 1990年,它释放到大气中的量为5010 Gg。在1999年,它降至2420克。肠发酵是CH_4排放的主要贡献者(87%)。通过肥料氮(N)的输入,生物固氮和农作物残渣的分解来估算农业土壤中的N_2O排放。根据主要耕种土壤的国家特定排放因子和动物粪便中氮含量的数据,计算了氮肥投入和粪肥氮中的N_2O排放量。作物残渣是国家农业中主要的N_2O来源。利用国家活动数据进行的计算表明,在1990年和1999年,它们分别占部门排放量的30%和56%。 1990年,全国农业的人为N_2O排放总量为280 Gg。在1999年,它降至1990年水平(88克)的30%。 CH_4和N_2O排放量减少主要是由于该国农畜和家禽数量减少以及化肥使用量减少。

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