Journal of Resources and Ecology ›› 2012, Vol. 3 ›› Issue (3): 193-201.DOI: 10.5814/j.issn.1674-764x.2012.03.001

• Articles •     Next Articles

Huge Carbon Sequestration Potential in Global Forests

LIU Yingchun1,2, YU Guirui1, WANG Qiufeng1, ZHANG Yangjian1   

  1. 1 Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2012-04-05 Revised:2012-05-14 Online:2012-09-30 Published:2012-09-27
  • Supported by:

    the National Basic Research Program of China (2010CB833504), the CAS Strategic Priority Research Program(XDA05050600), and the National Natural Science Foundation of China (30590381)

Abstract: Forests play an important role in mitigating climate change by absorbing carbon from atmosphere.The global forests sequestrated 2.4±0.4 PgCy-1 from 1990 to 2007, while the quantitative assessment on the carbon sequestration potential (CSP) of global forests has much uncertainty.We collected and compiled a database of site above-ground biomass (AGB) of global mature forests, and obtained AGB carbon carrying capacity (CCC) of global forests by interpolating global mature forest site data.The results show that:(i) at a global scale, the AGB of mature forests decline mainly from tropical forests to boreal forests, and the maximum AGB occurs in middle latitude regions; (ii) temperature and precipitation are main factors influencing the AGB of mature forests; and (iii) the above-ground biomass CCC of global forests is about 586.2±49.3 Pg C, and with CSP of 313.4 Pg C.Therefore, achieving CCC of the existing forests by reducing human disturbance is an option for mitigating greenhouse gas emission.

Key words: climatic gradient, global forests, mature forest, above-ground biomass (AGB), carbon carrying, capacity (CCC), carbon sequestration potential (CSP)