WEI Yuan,ZHANG Xu-dong,ZHOU Jin-xing,et al.Analysis of High Frequency Characteristic About Eddy-Covariance Data over the Poplar Plantation in Yueyang City of Hu’nan Province[J].Research of Soil and Water Conservation,2009,16(01):131-135.
湖南岳阳杨树人工林涡度相关系统数据高频特征分析
- Title:
- Analysis of High Frequency Characteristic About Eddy-Covariance Data over the Poplar Plantation in Yueyang City of Hu’nan Province
- 分类号:
- S792.11;S718.45
- 摘要:
- 气候变化和全球变暖使陆地生态的源/汇问题成为当前全球生态学研究的热点问题之一。植被和大气之间CO2通量的长期观测有助于理解陆地生态系统的碳循环及其控制机理，评价生态系统碳循环及其对未来气候变化的响应。目前涡度相关技术已经成为这一领域的主要研究手段，对涡度相关系统观测的高频率数据进行谱分析可以确定仪器对于高频湍流信号的响应能力。以湖南岳阳杨树人工林生态系统为研究对象，其功率谱和协谱分析表明，开路涡度相关系统对高频湍流信号的响应能力可以满足该生态系统实际观测要求，涡度相关技术可以应用于杨树人工林生态系统碳通量的观测中。
- Abstract:
- Carbon Source/Sink of terrestrial ecosystem has become an important issue in ecological research concerning about the climate change and global warming. Compared with other ecosystem, forest carbon storage plays a dominant role in the terrestrial carbon cycle and therefore many research are currently focusing on carbon sequestration and mechanisms of environmental control to this process. Based on long-term eddy covariance measured CO2 fluxes at the poplar plantation ecosystem in Yueyang City of Hu’nan province, the results show that the open path eddy covariance system to high frequency turbulence at poplar plantation sites could meet the requirement of eddy flux measurement and indicate that the open-path approach is an appropriate choice for the Yueyang poplar plantation eddy flux station.
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备注/Memo
收稿日期:2008-6-2。
基金项目:国家“十一五”科技支撑资助项目（2006BAD03A15）
作者简介:魏远（1983- ），男，安徽合肥人，博士生，主要从事生态系统生态学与全球气候变化相关研究。E-mail：weiyuan_caf@126.com
通讯作者:张旭东（1962- ），男，研究员，主要从事生态学和天然林保护研究。E-mail：zhxd@caf.ac.cn