The Correlation Between Tree Dbh And Canopy Coverage
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DBH and canopy coverage are two methods of measurement commonly used by ecologists to study an environment. Being able to analyze these two technique’s results can is vital in determining what environment is the best fit for a given tree species. For example, a tree that receives greater canopy coverage will interact with the environment in a different way than a tree that has no canopy coverage would. Trees that have bigger DBH sizes are more likely to live in nutrient rich areas in contrast with trees that are smaller in DBH size (Saremi et al. 2009). Likewise, further relationships are yet to be studied between different abiotic factors and the relationship between tree DBH and canopy coverage opens up new questions to…show more content… Similar information has been explored in different studies. A previous study conducted showed that trees with smaller DBHs and greater canopy coverage allowed for an increase in species richness (Rannius T 2000). Furthermore, researchers have found that saplings across different species like the sugar maple exhibit greater growth in open canopies than saplings that are in closed canopies (Canndam C. 1998). Although these studies are important, the relationship between canopy size and DBH is still yet to be explored. In response to this lack of knowledge, we have conducted a study to further explore this correlation. Our hypothesis is that the larger the DBH size, the greater the amount of canopy coverage in a given area for the tree being studied.
On September 17th, 2015 our group went on the Orange Trail of the State Botanical Garden of Georgia in Athens, Georgia to collect data for our lab. The biome of this area that we explored fit a temperate deciduous forest type. We walked along the trail and picked random spots to start measuring our transects. We measured DBH size and canopy coverage at 10, 20, 30, and 40 meters respectively along each transect for a total of six transects. We used a densitometer to measure the percent of canopy coverage of the tree closest to the center of the sampling points along each of the transects. We used a measuring tape to measure out 10, 20, 30, and 40 meters respectively along each of the six