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The ecology of Pacific Northwest coastal sand dunes

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In other p1 aces, accreti an is a<br />

problem, if not an immediate hazard.<br />

Long Beach Peninsula (Locality 3)<br />

has grown seaward by about 600 m<br />

since 1950 (Reuf 1975), while the<br />

southern end <strong>of</strong> the Clatsop Plan<br />

(Locality 4) has gained over 60 m<br />

between 1939 and 1968 (U.S. Army<br />

Corps <strong>of</strong> Engineers 1971). <strong>The</strong><br />

current problems in these areas are<br />

mainly social and legal--who owns<br />

the new land and what to do about<br />

l ost ocean vistas. Future problems<br />

will involve erosional cyc1 es that<br />

are poor1 y understood and unpredictable.<br />

An extensive l i terature exists<br />

(Fowl er 1979) to help people deal<br />

with the hazards <strong>of</strong> building on the<br />

unstable zone next to the ocean.<br />

At best these measures can only<br />

be temporary restraints, interfering<br />

with a system in long-term dynamic<br />

stability. As Godfrey and Godfrey<br />

(1974) point out in their plea for<br />

an ecological approach to dune management,<br />

"we speak <strong>of</strong> man's "battle<br />

with the sea' and 'his struggles with<br />

erosion', but this is really a battle<br />

to save works <strong>of</strong> man himself; the<br />

beaches, if left alone, are in no<br />

danger <strong>of</strong> obliteration by the sea".

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