Haphazard is the most efficient method in term of time spent on this sampling, because it took 13hours and 4minutes while the Random or systemic sampling had total of time to samples of 13 hours and 41minutes. Actually, they are very close but they do have different of 37minutes. The Haphazard density of Red Maple result is 0.036cm^3 and Random or systemic sampling is 0.042cm^3.
The percentages error of different sampling methods for the two most common species, such as Red Maple and Witch hazel and two rarest species are Hawthorn and yellow birch. The % error for the Red Maple was 2.9% , and Witch hazel was 18.8% for the Random and systematic sampling , and The percent error for haphazard sampling are the following,10% of Red maple , and 10.11% error of Witch hazel. The rarest percent error of Hawthorn was 77% for haphazard and the percent error of Yellow birch was 3.7% for random or systemic sampling.
Sampling type:
Random or systematic sampling : /Red maple 2.9%||Witch hazel 18.8%| White pine50%
Hawthorn 77%| Yellow birch 3.8%
Haphazard sampling/ 10%| 10.11%| white pine 37.5%| 77%|3.8%
Accuracy :
Different accuracy calculated in this mechanism for various abundances. Moreover, the most common species had the lowest percentage error while the rarest species had highest percentage errors.
The haphazard method had higher percentage errors than the random or systematic sampling.
It is very surprising that some species had the same error for two of the sampling methods. This is very unusual and I have never seen that before.
This exercise is a really good one to spend time on and understand the different sampling strategies especially if you are choosing plants for your field project.