大气科学2000，Vol.24Issue(6)：835-842,8.
华东地区稻麦轮作农田生态系统N2O排放的模拟研究
A Simulating Study of N2O Emission from a Rice-Wheat Rotation Ecosystem in Southeast China
摘要
Abstract
DNDC model is applied to simulate the nitrous oxide emissions from a rice-wheat rotation ecosystem in Southeast China. The result shows that the model is able to simulate most of the N2O emission pulses and trends. Although the simulated N2O emission fluxes are generally smaller than the measured ones, the model outputs during the dry land periods, especially during the wheat reviving and maturing stages in spring, are much better than those in other periods. Some sensitive experiments were made via simulating the N2O emissions in spring, when there is a smallest gap between the simulated fluxes and the measured ones. We can draw a conclusion from the results that fertilization is the most important regulating factor while the N2O emission is sensitive to some other factors such as temperature, precipitation, manure, tillage and the wet deposition of atmospheric nitrate.关键词
N2O排放/模式模拟/敏感因子/农业生态系统Key words
N2O emission/model simulating/sensitive factors/agricultural ecosystem分类
天文与地球科学引用本文复制引用
勾继,郑循华,王明星,李长生..华东地区稻麦轮作农田生态系统N2O排放的模拟研究[J].大气科学,2000,24(6):835-842,8.基金项目
本研究得到973预选项目PD9522、国家自然科学基金资助项目49675270和49975027以及大气边界层物理和大气化学国家重点实验室的共同支持 （）
