Sunday, December 16, 2012

Photo of the day: Long-term study

Long-term study by The Bacher Family
Long-term study, a photo by The Bacher Family on Flickr.
As I hiked along the Eastside Trail one August day, in search of a volunteer group rumored to be at work in the vicinity, I came across, instead, a research team surveying a stand of trees. These trees had been tagged and measured a decade ago as part of a long-term study of succession and climate change, and students from the University of Washington were returning for the third time to check on the progress of their subjects. Some trees had died, some that had been too small to include five years ago had reached maturity, and others had undergone the slow, steady progression of most living things, getting larger and thicker in the middle as they aged. It wasn't the group I was looking for, bt the stories they had to tell were just as interesting.

Diameter at breast height

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