times higher in the stream flow of the 
devegetated watershed than in the 
forested area. The authors concluded 
that “the ecosystem responds to en- 
forced devegetation by dumping sub- 
stantial quantities of nutrients into 
drainage water.” Much of this loss of 
minerals derives from the decomposi- 
tion of dead and dying vegetation on the 
forest floor. Equally important, how- 
ever, is an increase in the erosion of soils 
throughout the watershed. Particulate 
matter in streams is proportional to the 
flow of water, and in the first three years 
after the forest was cut, the forest floor 
actually sank three centimeters in 
depth. 
This stark picture of system degrada- 
tion changed dramatically as soon as the 
herbicide treatments ceased and the 
vegetation was permitted to grow. With- 
in four or five years the concentration of 
dissolved nutrients in the drainage water 
was close to that of the uncut watershed, 
particulate matter was significantly re- 
duced, and in general, stream flow dur- 
ing the summer months began to ap- 
proach the small volumes normally 
trickling out as forest ground water in 
midsummer. When vegetation returns 
after clear-cutting, foliage quickly over- 
grows the cut stumps and decaying piles 
of litter and fresh roots proliferate in the 
soil, consolidating the crumbling humus 
against erosion and absorbing ground 
water rich in nutrients. Precipitation 
percolates out of the watershed through 
the plants, moving upward in conduct- 
ing vessels to the surface of the leaf and 
leaving through stomatal evaporation. 
During this passage, the plant extracts 
minerals critical for growth. This solid 
stream of water within the mass of the 
shoot provides the force for plant growth 
by increasing the turgor in new cells at 
the growing tips, expanding cell walls 
and slowly unfolding new leaves. Vigor- 
ously developing plants live much like 
fish in a stream, depending on the flow 
of water to provide continual support 
and sustenance. 
Herein lies the short-lived but exalted 
glory of pin cherry, for in many New 
England forests, it is the primary species 
responsible for this dramatic turn of 
events. Its influence is felt so quickly 
because it really begins living in the 
forest — in the form of dormant seeds in 
the soil — long before a cut. There may 
be as many as fifty pin cherry seeds in 
each square meter of forest loams. In 
the Northeast, many of these individ- 
uals have probably been leading quiet 
lives since the last flush of cherries fol- 
lowed the lumbering of the forests soon 
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