WATERSHED PROTECTION 
T REES should be used to protect the 
lands within a great radius of an intake 
station, to save them from erosion, pollu¬ 
tion and spasmodic supply. Where such 
rightful condemnation of watershed land 
has been made, the trees will also provide 
an additional source of income for the water 
district or company. Many of the best 
systems have now accomplished this. 
Interest among water users will lead in time 
to full protection of all watershed sources 
of supply. 
PLANTING 
Trees are spaced the same as for reforesta¬ 
tion except where soil erosion is anticipated, 
in which case four by four spacing is often 
advised. 
Splendid 
Watershed de¬ 
velopment 
near Port¬ 
land, Maine. 
This photo- 
gr a p h w a s 
taken within 
a few feet of 
the one at the 
top of the page 
hat eight years 
after it. 
10 
