1 89 



be found in the Report of the Connecticut Agricultural Experi- 

 ment Station for 191 5, page 172. O'nly a few of the figures 

 can be given here. 





PLOT NO. I. 













igi5. 



Increase or decrease, 



Vegetation. 



sq. ft. 



sq. ft. 



sq. ft. 



per cent. 





• 1,839.38 



1,636.62 



— 202.76 



— 11.02 



Spike grass, 



. 5,615.50 



3,464.71 



—2,150.79 



- 38.3 



Spike grass and red salt grass,. 





3,455.07 



+3,455.07 



+100. 



Red salt grass, 



217.21 



466.87 



+ 249.66 



+ 1 14.9 



Rush grass, 



. 1,943.34 



1,186.79 



— 756.55 



- 38.9 



Rush grass and spike grass, . . . 





346.46 



+ 345.46 



+100. 



Highland vegetation, 





259.48 



+ 259.48 



+100. 



Dead grass area, 



. 557.36 





— 557.36 



— 100. 





. 643.21 





— 643.21 



— 100. 



Black grass (J uncus gerardi) was the principal salt-marsh . 

 species on this plot in 1912, but after ditching in 191 5 the area 

 covered by this species had decreased 11 per cent., due to the 

 invasion of the highland vegetation on one side and that of red 

 salt grass on the other. But spike grass (Disiichlis maritime) 

 and rush grass (Spartina glabra var. pilosa), both almost worth- 

 less for salt hay, had each decreased more than 38 per cent. In 

 three years the bare areas and dead grass areas had entirely dis- 

 appeared, while there had been an increase amounting to more 

 than 100 per cent, in the area covered by red salt grass [Spartina 

 patens (Juncean)], a good salt hay grass, and there were similar 

 increases where this grass invaded the areas formerly covered 

 with spike grass and rush grass. 



With plot No. 2 the conditions were somewhat different, as 

 there was no black grass and much rush grass — a poor marsh 

 as we would call it. 





PivOT NO. 



2. 













Increase or decrease. 



Vegetation. 



sq. ft. 



sq.ft. 



sq. ft. 



per cent. 





• . 2,852.03 



3,677.73 



+ 825.70 



+ 28.95 



Spike grass, 





655.93 



+ 655.93 



+100. 





. . 7,911.56 



5,512.58 



-2,398.98 



+ 30.2 



Rush grass and spike grass. 





155-95 



+ 155.95 



+100. 



Rush grass and Salicornia, . . , 





682.30 



+ 682.30 



+100. 







131.51 



+ 131.51 



+ 100. 



Bare area, 



52.41 





+ 52.41 



— 100. 



14 MO 



