农田氧化亚氮排放的主要影响因素及其作用机制

氧化亚氮（N2O）的环境效应显著,研究N2O的排放机理及影响因素对减少N2O排放和改善全球环境具有重大意义。农田生态系统的生物和非生物途径均可产生N2O,是N2O的重要排放源。由于受人为干扰频繁,农田土壤中N2O的产生和排放过程受到环境和农田管理措施等多种因素影响。介绍了土壤中N2O的产生机理,重点论述了肥料施用和土壤水热状况等关键性因素影响土壤N2O产生和排放的作用机制,以期为N2O的减排策略提供依据。...

Full description

Saved in:
Bibliographic Details
Published in广东农业科学 Vol. 40; no. 11; pp. 171 - 176
Main Author 徐新超 伏广农 谢小茜 张新明
Format Journal Article
LanguageChinese
Published 博罗县农产品质量安全监督检测中心,广东博罗,516100%华南农业大学资源与环境学院,广东广州,510642%博罗县环境科学研究所,广东博罗,516100 2013
Subjects
土壤温度
土壤湿度
施肥
氧化亚氮
氧化亚氮
土壤湿度
施肥
土壤温度
Online AccessGet full text
ISSN1004-874X

Cover

More Information
Summary:氧化亚氮（N2O）的环境效应显著,研究N2O的排放机理及影响因素对减少N2O排放和改善全球环境具有重大意义。农田生态系统的生物和非生物途径均可产生N2O,是N2O的重要排放源。由于受人为干扰频繁,农田土壤中N2O的产生和排放过程受到环境和农田管理措施等多种因素影响。介绍了土壤中N2O的产生机理,重点论述了肥料施用和土壤水热状况等关键性因素影响土壤N2O产生和排放的作用机制,以期为N2O的减排策略提供依据。
Bibliography:44-1267/S
Due to the great environmental effects of the nitrous oxide gas （N20）, the study on the controlling factors and the mechanism of N20 emission has profound significance on reducing N20 emission and improving global environment. Agro-ecosystem is a significant source of N20 emission, both of its biotic and abiotic processes are involved in production of N20. In agricultural soil, the production and emission of N20 are strongly affected by many factors because of the frequent artificial disturbance, such as environmental influence and agricultural management measures. In order to provide the basis for N20 emission reduction, this paper introduced the mechanism of N~O production in agricultural soil, and mainly discussed the influencing mechanisms of fertilizer application and soil moisture and temperature conditions on N20 production and emission in soil.
nitrous oxide; fertilizer application; soil temperature; soil moisture
XU Xin-chao1, FU Guang-nong2, XIE Xiao-xi3, ZHANG Xin-ming （1.Boluo Supervision a
ISSN:1004-874X