G Environmental Management

MSEM Students Study Trees in Muir Woods for the National Park Service

Muir Woods National Monument

MSEM Assistant Professor Gretchen Coffman and three MSEM graduate students worked in Muir Woods this summer on a riparian tree survey with a team of restoration scientists. The goal of the tree survey was to provide the restoration team and GGNRA ages of trees on seven floodplain terraces along the project reach in order to evaluate how this reach of the creek has evolved and migrated in the historic period in response to human interventions and natural processes, and to better understand how it is expected to change in the future. The tree ages will help provide the ecologic basis for defining appropriate creek setbacks for planned parking structures.

They collected and analyzed tree growth rings from cores collected for 3 species - California bay laurel, red alder and big leaf maple. From the data collected in this study, they were able to determine the age of floodplains that GGNRA would like to protect and restore while providing more parking to tourists. This study gave MSEM graduate students the unique opportunity to work on a nearby project with professional restoration scientists in an amazing National Monument among some of the tallest trees in the world.

Tree Core