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Biology Soil Sampling

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Introduction

The effect of soil PH on different plant species and their biodiversity Focus research question: How the soil PH affects the biodiversity of plant species on a 70 meter long transect? Table of Variables: Constants Variables Independent Dependent Other abiotic factors Soil PH Biodiversity Same daytime Same quadrat lenght Method for controlling variables: 1. Measure a 70 meters long transect at an extended area, with same characteristics such as temperature, day light amount, humidity, and other abiotic factors. ...read more.

Middle

3. Make sure to take this measurement at 2'oclock on the afternoon 4. Divide the transect in 7 parts, every 10 meters. 5. In the first division measure a 50cm X 50cm quadrat. 6. Repeat step 5 in every division along the transect. ( Every 10 meters a 50cm X 50 cm quadrat) 7. From each quadrat, take a 4 grams sample of soil and deposit it on labeled plastic bags. (Ex: 10 meters sample, 20 meters sample, 30...). ...read more.

Conclusion

50 3 woods less humidity, shadow 5m 15 1 woods more day light, less humidity 7m 80 4 woods humidity, shadow 9m 75 5 woods humidity, shadow 11m 80 3 woods humidity, shadow Conclusion: Finally, we can see that as the humidity increases, the biodiversity increases also. Specimens located on areas in which the humid conditions are less, the biodiversity is affected by this. Soil Testing PH SOIL SAMPLE River Cattle Forest Weight 4.80g 4.35g 7.62g PH 6.81 6.14 6.68 Nitrate 0 0 0 Phosphate 25 25 50 Pottassium 0 0 0 ...read more.

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