Estimation of Emissions from Field Burning of Crop Straw in China
- Release time:2024-08-09
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Affiliation of Author(s):
环境与市政工程学院
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Journal:
Chinese Science Bulletin
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Key Words:
中文关键字：中国;秸秆;露天焚烧;排放清单，英文关键字：China;crop straw;field burning;emission inventory
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Abstract:
Emissions resulting from crop straw field burning in China, which have caused serious environmental
problems in China, are estimated in this paper. From the county-level data of crop production in 2000―
2003 from the government statistics, taking into account the ratio of residue and grain, the total amount
of crop straw production is estimated to be about 600 Tg per year, 76% of which are rice, wheat and
corn straw. With reference to the data of living standards, the percentage of crop straw burnt in fields
for counties are obtained and consequently the total amount of burnt straws is approximately 140
Tg/year. With the emission factors from literature and experiments, appropriate emission factors have
been obtained. The total amounts of PM, SO2, NOx, NH3, CH4, BC, OC, VOC, CO, CO2 emissions from
field burning of crop straw in China are estimated. All emissions are presented at county level. Some
pollutants, such as BC, VOC, OC, CO and CO2, are contributing a major portion to the total emissions of
China. This paper uses a map with resolution of 0.2°×0.2° to present the PM emissions distribution from
crop straw burnt in 2003. The results show a significant regional unevenness of emissions, with larger
amounts of pollutions coming from the provinces in eastern and northeast China. The regions with
higher emissions per unit area are located as a belt stretching from northeast China to eastern China.
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Note:
曹国良
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Co-author:
张小曳,王亚强
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First Author:
郑方成,caoguoliang
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Indexed by:
Journal paper
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Volume:
卷：53
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Issue:
期：5
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Page Number:
页：784-790
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Translation or Not:
no
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Date of Publication:
2008-03-01
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