Emily Browne
I collected data on tree species in a dense mature conifer forest. I used a transect method where I sampled 5 quadrats along a transect, and the quadrats were each 10 m apart. I found it difficult to maintain a straight transect line over a long distance. Additionally, it was very difficult to measure out large quadrats since the trees were large and to identify which trees fell in the quadrat. I think this is still the best approach for collecting data given the large sample sizes of individuals and the random changes in tree density quadrats were best used.
The data was a little surprising since I do not see any pattern in the data at these early stages. I thought as I increased in elevation I would see a difference in tree species or the density of the forest.
Circle plots can be hand with tree data – get a piece of sturdy rope the radius of your plot. Put a stick in the middle and attach your string and provides an easy way to get all trees in a plot and figure out what is on the edge.