E070 is sampled annually. Each time it is sampled, the sample strip is located in a different place. Sample size is 10cm X 50cm. A wooden frame was made to aid in location of the sample strip. The frame was layed down with the edge in contact with the subplot edge. The strip was then marked with toothpicks or flags (depending on vegetation density). After the frame was removed, the strip was clipped between the toothpicks or flags. This insured consistent sample size and placement in each subplot. Sampling methods, except for the use of the 3m aluminum pole, are described in above ground vegetation sampling methods.

In 1992 and 1993, reproductive structures were clipped off individual plants dried and weighed separately to determine allocation to reproduction. This was done early in the monoculture plots.