342 



RESEARCH METHODS 



Mapping Chart Plot. — The method of mapping is one in 

 which specially designed tapes are used to divide the plot into 

 squares, which, in the meter plot, are in decimeters The 



NWI L j 2 

 I 



, \^^ ^ '^A,^. S^ "ri ^"^\ 



6 7 J 8 



I ''^ ^ 



' %^^'-, 



^ 



10 



. ?^¥ 



En 

 ^^, F n 



EnJtL p ^P 







Fig. 123. — chart PLOT, ALL OF THE VEGETATION BEING LOCATED ON THE MAP 

 TO CORRESPOND WITH ITS POSITION ON THE SELECTED AREA. 



P — Poa pralensis. 

 Pe — Penlstemon procerus. 



A — Achillea lanulosa. 



K — Triselum spicatum. 



L — Lathyrus leucanthus. 

 Po — Polygonum Douglasii. 



T — Leonlodon taraxacum. 



E — Erixcron efusus. 



B — Bursa bursa-pasloris. 



C — Crepls acuminata. 



D — Draba catia. 



V — Viola linmaefoUa. 



S — Sophia incisa. 

 An — Androsace diffusa. 

 Al — Alsiite (spp.). 

 En — Erigeron divergens. 



vegetation within each decimeter is mapped on a reduced scale 

 of approximately i to 5, the map scale depending upon the 

 detail desired. In the mapping of permanent chart plots the 



