1,500 



1,000 - 



1975 



1976 



Figure 1. Seasonal variation of live above ground biomass in the study plots, mean ± 1 SE 



3,000 - 



2,000 



1,000 ■ 



Chalmers et al. 1976). 



□ Low Marsh 



O High Marsh 



# Experimental High Marsh 



1— 

 Jan. 



1975 



Mar. 



— I — 

 May 



— i — 

 June 



Sept. 



— i — 

 Nov. 



— I 



Jan. 



1976 



— I — 

 Mar. 



Figure 2. Seasonal variation of below ground macro-organic matter as grams ash-free dry weight 

 (AFDW) per m 2 for the study plots (Chalmers et al. 1976). 



150 



