The hypothesis is that the different types of soil will have effect on the trees, such as GPP count and carbon output from the bacteria or fungi. This was not was the case in the end of our research. Each 14 tubes had a different density and once group of tubes had a higher carbon output. The photosynthesis was also not affected.
The photosynthesis of the trees was not affected by the sterile soil or the non sterile soil. We found that the trees all grow around the same. One thing that could have affected the tree growth was the soil. Some of the tubes went though more soil then we expected. It not having a effect is a good thing though. When you have a forest fire your soil ends up being sterilized. Because the sterile soil doesn’t have an effect on the GPP count of trees its better for the cases when you do have a fire. You want to make sure that your forest isn’t destroyed completely.
Soil density shows us how many microbes are in the soil. It also shows us how much the trees went though. The tubes with the highest density were bacteria and tree. The other thing we took into consideration with the density was the ones with trees had less soil because the trees took up some of the tube space. Another thing that could be the case of the high microbes is that we measured them when they were at their highest peak of growth. This information we ended up needing the most. The carbon flux in a group of the tubes ended up being strange. Knowing that there was only bacteria and fungi in the tube helped us figure out the problem. The sterile soil ended up not being sterile in the end. Because of being in the green house and having different components, the water in each tube was different and the sterile ended up having the most microbes. This is something hard to control because you need your trees in the sun so you cannot keep then outside.
The highest carbon output was no bacteria and no trees. The rest of the trees had an even output from a statistic point. The reason we think the no bacteria and no tree had the biggest carbon output was because there was a lot of soil. It is also because since there was no tree the microbes didn’t have anything to compete with and their exploding. Since we found that the microbes had a carbon flux it tells us that it’s not just the trees putting off carbon. That can be a good thing but it could also be a bad thing. We don’t know how much it matters but it is something that shows us it’s not just trees.
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