摘要
本文报导了实验室规模的生物质封闭燃烧系统及稻草、玉米秸、麦杆燃烧过程中N_2O排放因子的测定结果.测定结果表明:稻草、麦杆及玉米秸燃烧排气中N_2O的排放因子分别是84.4g/t,27.3g/t.132g/t.用N_2O-N占生物全氮的百分含量表示,稻草及玉米秸分别占0.59%,0.87%.用实验得到的N_2O的排放因子计算出了生物质燃烧产生N_2O在全国各省、直辖市、县的年排放量.并作出了全国年排放的分布图.
The emission factors of nitrous oxide have been determined during the combustion of rice straws, wheat stalks and maize stalks in an enclosed combustion system. They equal to 84. 4 g/t for rice straws, 132g/t for maize stalks and 27. 3 g/t for wheat stalks, respectively. The nitrogen in nitrous oxide emission is comprised of 0. 59% and 0. 87% of the total nitrogen in rice straws and maize stalks, respectivle. An 1°× 1°distribution map of N2O emission from biorr.ass burming is shown. The uncertainties in the determination have been discussed.
出处
《环境化学》
CAS
CSCD
北大核心
1994年第5期395-400,共6页
Environmental Chemistry
基金
国家自然科学基金
