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Published byGervais Haynes Modified over 9 years ago
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Forestry- The Management of Trees Goal of Forestry- To sustain a balance between our needs (products) and the needs of nature.
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Forestry Occupations Federal, State, Local Landscape, Tree Farms Logging Paper Land Mgmt. other
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Why are Forest Impt? 1. Habitat for organisms 2. Produce products that we need ex. Why White Pine? 3. Protect Soil, Erosion, Windbreak 4. Prevent flooding 5. Recharge Groundwater 6.Carbon Trap Produce Oxygen, Clean air 7. Aesthetics
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Harvesting Decision 1. Calculate the Monetary Value of the trees/forest. 2. Calculate/Estimate the importance of each species by studying populations. Quadrat Method. 3. Predict future effects on other plants and animals 4. Predict future effects on recreational needs
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Tree Measurements To Determine the monetary value of trees. Only measure trees over 6 in. in diameter at DBH.
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Diameter Biltmore Stick Calipers Tape Biltmore Stick Calipers Tape Biltmore Stick Calipers Tape
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Height Only measure usable timber- 6 in. 1 chain equals 66 ft. Clinometer Biltmore Stick
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Sawlogs 1 sawlog equal 16 ft. Sawlogs are found in whole or half logs Reduce down to the nearest whole or half
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Boardfeet The number of 12” by 12”by 1” boards a tree could be cut into. Boardfeet Chart –Diameter and Sawlogs used to determine numbers of boardfeet.
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Worth of the Tree All types of lumber costs different amounts Market Value = Board Feet times Cost per Board Feet. Standing or Stump Value = 1/10 of the Market Value.
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