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To see what affect trampling has on the diversity of plants, their abundance, and growth and to see the difference in varieties between a trampled and less trampled area.

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Introduction

Andrew Lightstone The Effects of Trampling on an Area of Plants Aim: - To see what affect trampling has on the diversity of plants, their abundance, and growth and to see the difference in varieties between a trampled and less trampled area. Preliminary work: - We went on a nature walk around the grounds of the school, to see the different varieties of plants and grasses in different areas. We noticed that in the area in front of one of the buildings where the children waited for the coaches, there were a lot less flowering plants, than in the area next to the football field where few people go. The differences between the sites, was due to trampling. We wanted to find out exactly how many more species of plants there were in the two areas, along with their abundance. In order to do this, we needed to carry out an experiment. Involved, we needed to see, on average, how many of each plant were in the trampled and non-trampled area. ...read more.

Middle

large tape measures at a 90 degree angle in the ground, a biological key, a pencil, Method: - The variable in the experiment was the trampling and non-trampling, thus everything had to be the same. Both sites were looked at the same day so the weather was the same, they are quite near each other, so have the same soil, and are both south facing so have the same amount of sun light.I will visit site 1 by the football field first. I will take all the equipment. The site has few people walking on it so the plants are not affected by human interaction. I will put the tape measures out on the ground, adjacent to each other at a 90 degree angle. The tape measures give us our X and Y axis', and with a set of numbers picked randomly (to avoid biased), I need find the coordinates and drop the ruler on the ground. At each ten-centimetre interval, find what plant is on the mark and with the biological key to identify the plants, I will tick the appropriate box. ...read more.

Conclusion

In order to find the true abundance, and variety of plants, we found the diversity with a simple formula. Diversity of site 1 - 5.6067 Diversity of site 2 - 3.7641 By these results, there is clearer a greater abundance and variety of plants in site 1. Evaluation: - Through this experiment we managed to get a good idea about the types of plants around the school, and one of the main reasons why there is a bigger diversity in one area than another. The method of the experiment, was the best way to find the results, however, the measuring ruler when put in the floor could easily have moved when we tried to find the plants, and when adding up the totals for the graph, it was very easy to accidentally miss count them. This is shown by the fact that: - dandelions are low growing rosette plants and are usually seen on heavily trampled on grass, however, in this experiment, more dandelions were found in site 1 than 2. However, there was some amount of accuracy between the results, because altogether, we did 20 quadrats, to try to wipe out the scenario of luck and mistake. ...read more.

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