Chin J Plant Ecol ›› 2010, Vol. 34 ›› Issue (4): 452-461.DOI: 10.3773/j.issn.1005-264x.2010.04.011

Special Issue: 全球变化与生态系统

• Review • Previous Articles     Next Articles

Review of advances in measurements and effects of diffuse radiation on terrestrial ecosystem productivity

SUN Jing-Song1,2, ZHOU Guang-Sheng3,1,*()   

  1. 1State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
    2Graduate University of Chinese Academy of Sciences, Beijing 100049, China; and 3Chinese Academy of Meteorological Sciences, Beijing 100081, China
  • Received:2009-02-23 Accepted:2009-11-16 Online:2010-02-23 Published:2010-04-01
  • Contact: ZHOU Guang-Sheng

Abstract:

Changes of diffuse radiation resulting from global changes, especially atmospheric composition changes, influence terrestrial ecosystem productivity and the carbon budget. We review the effects of diffuse radiation on terrestrial ecosystem productivity and carbon budget, including controls and methods of estimating diffuse radiation, processes and mechanisms of diffuse radiation effects on canopy light-use efficiency (LUE), terrestrial ecosystem productivity and carbon budget. Suggested future research tasks are study of 1) responses of leaf photosynthesis to diffuse radiation at different temporal and spatial scales; 2) effects of diffuse radiation and its interaction with other environmental factors on photosynthesis and modeling; 3) effects of diffuse radiation and its interaction with other environmental factors on soil respiration; 4) adaptation of plants and terrestrial ecosystems to diffuse radiation and its interaction with other environmental factors; and 5) response processes and mechanisms of terrestrial ecosystem productivity and carbon budget to diffuse radiation and its interaction with other environmental factors.

Key words: carbon budget, diffuse radiation, model, productivity, terrestrial ecosystem