height zones. Height and yield are more closely related within a given 

 marsh or type of marsh (Williams and Murdoch, 1969). That is, at a 

 particular location the taller grass produces higher yields. In this 

 study, the correlation between height and yield was low enough that it 

 seemed appropriate to create separate models for height and yield. 













16- 







• 





12- 







• • • 

 • 



R 2 =0.26^ 









• 



• 





8 • 

 4- 



• • 





y» * 



• 

 • 



• 



• 

 • 



• 





^^ • 



>••• 



C.V. 56.8 









•• 



• 



Y=1298 + 58.5(X) 

 ■ i i ■ i 



40 80 120 

 Height (cm) 



160 



Figure 55. Relationship between height and yield 



of S. alterni flora. 



110 





