1. You conduct a point count sample on soil particles and you find the following

Question

1. You conduct a point count sample on soil particles and you find the following: 116 Sand 122 Clay Silt Pore Space 15 a. What is the percent of porosity? b. What is the relative percent of sand particles? 2. hy would a point-quarter method work best for sampling trees in a forest instead of getting a total count or random count? 3. The on the next page represents a transect line through a forest. There are three diagram sample points along the transect. a. How many trees were sampled? b. What percent of your sample were stars? c. What percent of your sample were circles? d. What percent of your sample were triangles? 13

Explanation / Answer

Ans.1

a) Percentage porosity is 4.41%

b)Relative percent of sand particles is. 34.11%

Ans.2. Sampling using point quadrant method is work best because,it saves time and hence give faster results If we follow total count or random count methods, then counting the number of plants in a quadrant can be very time consuming .

Ans. 3

Sorry, but without seeing the diagram on the next page , i cant help you.

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