摘要
农田生态系统是受人为活动强烈控制和干扰的系统,对其碳源/汇的评价是全球碳循环研究的热点.首先概括了以涡度相关法为手段的中国农田生态系统碳通量的研究进展,重点总结了中国农田生态系统碳通量的时间变化、驱动机制和模型模拟等方面的研究成果,并在此基础上对今后中国农田生态系统碳通量研究提出了建议,认为长期观测与研究、多因子协同作用、模型开发与尺度推绎、数据质量监控和评价是今后研究的重点方向.
Ago-ecosystem is one of the terrestrial ecosystems under the intensive control and interference by hu- man activities, the estimation on carbon source or sink of agro-ecosystem has become a study focus in the field of global carbon cycle studies. Direct and continuous long-term measurements of carbon fluxes over grassland ecosys- tem have become possible due to the improvement of eddy covariance method. This paper summarizes the research progresses of carbon flux over agro-ecosystem based on the eddy covariance method in China, and gives emphasis to the research results on the temporal variation characteristics, driving mechanism and model simulation of carbon flux over agro-ecosystem. Based on the research, the paper also offers some suggestions on the study of carbon flux over agro-ecosystem in China, and points out that long-term observation and study, multi-factor cooperative function, mod- el development and scaling, data quality control and assessment should be the key research directions.
出处
《南京信息工程大学学报（自然科学版）》
CAS
2012年第3期226-232,共7页
Journal of Nanjing University of Information Science & Technology（Natural Science Edition）
基金
中国气象局气象新技术推广项目(CMATG2010Z05)
南京信息工程大学科研启动基金(20080264)
