Comparative analysis of NPP changes in global tropical forests from 2001 to 2013

International Symposium on Earth Observation for One Belt and One Road

地球科学;政治学;社会学;经济学

Yin, S.^1,2 ; Li, X.^1 ; Wu, W.^1

Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, No.9 Dengzhuang South Road, Haidian District, Beijing

100094, China^1

University of Chinese Academy of Sciences, No.19A Yuquan Road, Shijingshan District, Beijing

100049, China^2

关键词: Climatic changes;    Comparative analysis;    Gross primary production;    Moderate resolution imaging spectroradiometer;    Net primary production;    Plant respiration;    Temporal and spatial changes;    Terrestrial carbon cycle;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/57/1/012009/pdf
DOI  :  10.1088/1755-1315/57/1/012009

来源: IOP

【 摘 要 】

Net primary production (NPP) is the difference between total photosynthesis (gross primary production, GPP) and total plant respiration in an ecosystem. NPP is a key component of the terrestrial carbon cycle and is important in global climate research. Tropical forests, distributed mainly in Central Africa, Central and South America, and Southeast Asia, are among the most important ecosystems on earth. They are very important to analyses of the global carbon budget and to the projection of future climatic changes. In this study, we analyzed and compared the temporal and spatial changes of NPP within the three dominant areas of tropical forest from 2001 to 2013 by using data from the Moderate Resolution Imaging Spectroradiometer (MODIS). We found that Central and South America has the highest annual mean NPP, statistically, while the average NPP shows an increasing trend both in Central and South America and Central Africa but a decreasing trend in Southeast Asia.