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The And Of The Forest

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In investigation 1, the data points are very clustered from the height of 150cm to the height of 300cm. This makes sense as saplings are defined as young trees that are taller than 1.35m above the forest floor. So between 150cm and 300cm is most likely average height which would be the majority of the population. The overall data set of investigation 1 is alot more spread out than the compact data set of investigation 2. On the other hand, in investigation 2 all the data points are overlapping and in line with the regression line, up to a height of 600cm where there is few data points, indicating that the majority of saplings taken in this sample are young and planted for regeneration of the forest purposes.

In both cases there is a positive relationship between the two sets of variables. In investigation one, as H of a sapling increases, the DBH tends to increase. This would make sense because as the sapling grows up, it subsequently grows in diameter because it manufactures new cells around its circumference which increase the diameter at breast height in order to maintain and support the weight of the growing height. On the graph there appears to be some unusal feature’s where the height of the Sapling is approx 450cm however the DBH of just below 10cm is alot lower than the other saplings of the sample population that have a height of 450cm. It is possible that some sapling trees, like this one, are alot thinner and taller. This could be caused by a mutation. However

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