Survival and growth of native plant species planted in the Mount St. Helens blast area.

The principal objective of this research was to determine the potential of establishing vegetative cover in areas with deep deposits of volcanic materials from the eruptions of Mount St. Helens in 1980 in order to provide for erosion control. Three sites northeast and northwest of the mountain that received approximately 25 cm or more of volcanic materials were studied: two with largely pumice materials and one with predominately fine ash.

 

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