Research About reforestation

Posted On: Filed Under: Biological Research

Current Vegetation Survey (part of national vegetation mapping program)

Long term vegetation sampling for monitoring and current conditions. Permanent one hectare plots are installed every 1.7 miles in a grid pattern, to be remeasured in an 8-10 year cycle. Above ground vegetation is tallied, numbered, and referenced, where available; shrubs, herbs, forbs species and crown cover are estimated on five 1/20th acre subplots. Down woody debris is tallied using five 51.1’ line transects. Objective is condition database and remeasurability. Locations will also be used to tally lichens, wildlife, etc. on other studies.

 

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Posted On: Filed Under: Biological Research

Post-eruption species selection and planting trials for reforestation of sites near Mount St. Helens

This study monitored survival and growth of seven conifer species planted with shading and fertilization treatments on disturbed sites at Mount St. Helens. Seedlings were planted on six low-elevation sites and five high-elevation sites which represented a variety of post-eruption conditions.

 

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Posted On: Filed Under: Biological Research

Seeding habits of upper-slope tree species

The Blue Lake noble fir plot is one of 52 plots established in the early and mid-1960’s throughout the Washington and Oregon Cascades to do a long-term study of the cone production of upper-slope conifers. Initially the objective was to characterize the size and frequency distribution of cone crops of important upper-slope tree species. Early results indicated that the pattern of cone production varies with geographic location, so a secondary objective to describe this variation was adopted. Another new objective is to describe how climate influences cone production. With the possibility of global warming this objective may become the most important.

 

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