首页|期刊导航|大气和海洋科学快报（英文版）|Applicability of an eddy covariance system based on a close-path quantum cascade laser spectrometer for measuring nitrous oxide fluxes from subtropical vegetable fields
大气和海洋科学快报（英文版）2016，Vol.9Issue(5)：381-387,7.
Applicability of an eddy covariance system based on a close-path quantum cascade laser spectrometer for measuring nitrous oxide fluxes from subtropical vegetable fields
Applicability of an eddy covariance system based on a close-path quantum cascade laser spectrometer for measuring nitrous oxide fluxes from subtropical vegetable fields
摘要
Abstract
亚热带蔬菜地是氧化亚氮(N2O)的重要排放源,本研究首次采用基于闭路量子级联激光吸收光谱仪的涡动相关(QCLAS-EC)法观测亚热带蔬菜地秋冬季非施肥阶段的N2O排放通量,以评估QCLAS-EC法测量亚热带蔬菜地N2O通量的适用性.结果表明,QCLAS-EC观测系统在野外条件下能长期稳定运行,可观测到N2O排放的季节变化趋势,其检测限为18.5 μg N m-2 h-1(95％置信水平),试验期间获得的97.5％的N2O通量大于此检测限,表明QCLAS-EC观测系统可有效并准确测量亚热带蔬菜地的N2O排放通量,仪器本身的灵敏度不是通量检测的限制因素.关键词
Nitrous oxide/flux/quantum cascade laser/eddy covariance/subtropical vegetable fieldKey words
Nitrous oxide/flux/quantum cascade laser/eddy covariance/subtropical vegetable field引用本文复制引用
WANG Dong,WANG Kai,Eugenio D(I)AZ-PIN(E)S,ZHENG Xunhua,Klaus BUTTERBACH-BAHL..Applicability of an eddy covariance system based on a close-path quantum cascade laser spectrometer for measuring nitrous oxide fluxes from subtropical vegetable fields[J].大气和海洋科学快报（英文版）,2016,9(5):381-387,7.基金项目
This work was supported from the Ministry of Science and Technology of China [grant number 2012CB417106] （）
the Chinese Academy of Sciences [grant number XDA05020100] （）
the German Science Foundation [contract number BU1173/12-1] （）
and the National Natural Science Foundation of China [grant numbers 41405137 and 41321064]. （）
