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Course Review FORE 3218 Course Review  Sampling  Inventories  Growth and yield.

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Presentation on theme: "Course Review FORE 3218 Course Review  Sampling  Inventories  Growth and yield."— Presentation transcript:

1 Course Review FORE 3218 Course Review  Sampling  Inventories  Growth and yield

2 Course Review FORE 3218 Course Introduction  What are forest measurements?  Why measure forest resources?  What are the types and scales of measurements? Can you identify them?

3 Course Review FORE 3218 Statistical Methods  Bias, accuracy, and precision  Calculating probabilities  Population vs sample  Parameter and variable  Meaning and types of frequency distribution  Measures of average population variables; Know to calculate them  Measures of dispersion and their calculations  Meaning and calculation of confidence limits

4 Course Review FORE 3218 Elementary sampling  Why sampling?  Definitions of sample, sampling unit, and sampling frame  Advantages and disadvantages of selective, simple random, and systematic sampling methods  Procedures of a simple random sampling  How to estimate population parameters from a simple random sample?  Sampling intensity? How to determine and what are the factors influencing its determination?  Why systematic sampling?

5 Course Review FORE 3218 Stratified random sampling  How is it similar to and different from simple random sampling?  Why, when, and how do we use it?  How to calculate the mean, measures of dispersion, and confidence limit from a stratified random sample?

6 Course Review FORE 3218 Regression and ratio estimation  What is regression?  What are the meaning of b0 and b1 in a linear regression?  How do you measure the fit of a regression?  Purpose of regression estimation as a sampling method? When can we use it?  How regression estimation is compared with simple random sampling?  Meaning of ratio estimation?

7 Course Review FORE 3218 Sampling Elementary sampling methods: –selective, simple random, and systematic  Stratified random sampling  Regression and ratio estimation  Double sampling, cluster, and sampling for discrete variables  What are their characteristics?  Can you calculate simple statistics? –mean and dispersion –sample size determination  Can you give some examples?

8 Course Review FORE 3218 Inventories  Why do we do inventories?  What are the types of inventories, how are they different?  What does inventory planning involve?  What is Ontario Forest Resource Inventory for? How is it done?

9 Course Review FORE 3218 Inventory with fixed-area plots or strips  Line-plot system cruising –How is done? –Can you determine line distance or space between plots with known sampling density?  Permanent sample plots –What is it for? –How is normally done? –Why do not we establish more PSPs?

10 Course Review FORE 3218 Inventory with point samples  What are factors affecting the probability of tallying a tree?  Basal area factor (BAF) –What is it? –What affects the BAF of a prism? –How could you determine the BAF of a prism?  Plot radius factor –What does it mean? –How can it be calculated?  Why each tallied tree represents the same basal area on a per-unit- area basis?  Calculations for point samples –Determination of stand basal area, stand density, and stand volume?

11 Course Review FORE 3218 Growth and Yield  Site productivity  Stocking and density  Tree-growth and stand-table projection  Growth and yield models  Structural diversity

12 Course Review FORE 3218 Site Productivity  What is site quality?  How you may determine site quality in different situations?

13 Course Review FORE 3218 Stand Density and Stocking  Definition of stand density and stocking  Types of measurements  How are they measured at the stand level?  How is point density measured?

14 Course Review FORE 3218 Tree-Growth and Stand-table Projection  Relationships between growth and yield  Relationships between current annual growth rate, periodic annual growth rate, and mean annual growth rate

15 Course Review FORE 3218 Growth and Yield Models  Definition of growth and yield  Relationships between growth and yield  What are the measures of growth and yield?  What are the types of growth and yield models and their attributes?  How many models have you heard?

16 Course Review FORE 3218 Stand Structural Diversity  Definition  How it can be classified?  How can it be quantified?

17 Course Review FORE 3218 What are measured in the final exam?  How well you understood lectures, including classroom examples  Whether you could accomplish your lab assignments independently  Whether you have done your assignments (reading and excises)

18 Course Review FORE 3218 Good luck!


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