生物质燃烧释放N_2O的测定及其分布  

DETERMINATION OF NITROUS OXIDE DURING BIOMASS BURNING AND ITS DISTRIBUTION

作　　者：曹美秋[1] 庄亚辉[1] 

机构地区：[1]中国科学院生态环境研究中心,北京100085

出　　处：《环境化学》1994年第5期395-400,共6页Environmental Chemistry

基　　金：国家自然科学基金

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.

关 键 词：生物质 燃烧 排放因子 一氧化二氮 分布 

分 类 号：X511.02[环境科学与工程—环境工程] TQ038.1[化学工程]