Biophysical Processes and Primary Production 



73 



14-24 24Jun 4-14 14-24 24Jul 3-13 13-23 23Aug 

 Jun 4 Jul Jul Jul 3 Aug Aug Aug 2 Sep 



FIGURE 3-1. Seasonal course of carbon incorporation in the moist 

 meadow tundra estimated by independent approaches during 1971 

 or 1973. A — vascular plant carbon incorporation estimated by a 

 canopy simulation model (Miller et al. 1976). B — vascular plant 

 carbon incorporation estimated from cuvette measurement of pho- 

 tosynthesis, corrected for shading (Tieszen 1975). C — community 

 net carbon incorporation estimated by the aerodynamic method 

 (Coyne and Kelley 1975). D — vascular plant carbon incorporation 

 estimated from periodic harvests (Tieszen 1975). E — moss carbon 

 incorporation estimated from simulation model for 1973 (Miller et 

 al. 1978a). F^green moss carbon incorporation estimated from cu- 

 vette measurements of photosynthesis for 1973 season. (After 

 Oechel and Sveinbjornsson 1978.) 



