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Experiment 45-1 Dendrometer Measurement of Thinning Effectiveness

• HF-ID: R1947-01
• Category: Research Files
• Creator:
  • Rose, R.C.
  • Stephens, E.P.

• Date: 1945 to 1947
• Location: Prospect Hill Tract (Harvard Forest), PH I, PH II
• Media: Paper
• Contents:
  • Graphs of the experiment. Large Map Folder. Various, see list in abstract.. None.

• Keywords: dendrometers, thinning, pruning
• Abstract:
  • Graphs from Experiment 45-1:
  
  
  • 1. Dendrometer Measurement of Thinning Effectiveness by R.C. Rose,
  • October 17, 1946. Size 22 inches x 44 1/4 inches, on Graph Paper.
  • Time Span April 23, 1945 to September 25, 1945, Winter Break, April 23, 1946 to October 7, 1946. Cumulative average increment per tree in thousandths of an inch and total average radial growth. Plantations 24-A, 24-C and 24-F. Showing row thinning 24-F; Heavy thinning 24-C; Control 24-C; Control 24-A; Control 24-F; Row thinning 24-A.
  
  
  • 2. Dendrometer Study, General Thinning - Pruning, 1947 by E.P. Stephens:
  • a). Average growth, temperature, relative humidity for Plantations 27-E North; 27-E South; 27-I. Size 8 1/2 inches x 11 inches on Paper.
  • b). Fluctuation of data about the averages - twice daily measurements for Pre-treatment 27-E North to be thinned; 27-E South control; 27-I. Post-treatment 27-E North; 27-E South; 27-I.
  • Composite Pre-treatment. Post-treatment. Size 8 1/2 inches x 11 inches on Paper.
  • c). 27-E Treated. Size 19 inches x 24 inches, on Graph Paper.
  • d). Radial Growth - weekly increment .001". Size 19 inches x 24 inches on Graph Paper.
  • e). No title; 2 graphs 4-10 to 9-15 and 4-29 to 10-7. Size 19 inches x 24 inches on Graph Paper.
  • f). No Title; 2 graphs 4-10 to 9-15 and 4-29 to 10-7. Size 19 inches x 24 inches on Graph Paper.
  • g). No title; one graph AM and PM readings May 26 to June 13. Size 19 inches x 24 inches on Graph Paper.
  • h). No title; one graph AM and PM readings May 26 to June 13. Size 19 inches x 24 inches on Graph Paper.
  • i). No title; 2 graphs 4-29 to 10-7 and 4-10 to 9-15. Size 19 inches by 24 inches on Graph Paper.
  • j). 1947 Growing Season for Plantation 27-I, Pruning Experiment. Showing control, 2 live whorls and 3 live whorls. Dates 4-17-1947 to 8-11-1947. Size 19 inches x 24 inches on Graph Paper.
  • k). 1947 Growing Season for Plantation 27-E, Thinning Experiment.
  • Showing control and thinning. Dates 4-17-1947 and 8-11-1947. Size 19 inches x 24 inches on Graph Paper.
  • l). Pruning Experiment 1946-1947 Growing Seasons, Plantation 27-I Red Pine showing date of measurements and radial growth - .001", control, 2 whorls and 3 whorls. Size 19 inches x 24 inches on Graph Paper.
  • m). Thinning Experiment 1946-1947 Growing Seasons Plantation 27-E Red Pine showing date of measurements and radial growth - .001", control and thinned trees. Size 19 inches x 24 inches on Graph Paper.
  • n). No title. 2 Graphs. Size 19 inches x 24 inches on Graph Paper.
  • o). No title. 2 Graphs. Dates 4-10 to 9-15 and 4-29 to 10-7. Size 19 inches x 24 inches on Graph Paper.
  
  
  • 3. One Graph; dates 4-29 to 10-7; showing Plantation 27-I (red line); 27-E South (black line); 27-E North (gray line). Size 25 1/2 inches x 24 1/4 inches on Graph Paper.
  
  
  • 4. Experiment 45-1 Days since measurement started on April 23, 1945 and Cumulative Radial Increment. Plantations 24-F Row thinned and Control; 24-C Heavy thinning and Control; 24-A Row thinned and Control. Size 22 inches x 27 inches on Graph Paper.
  
  
  • 5. Dendrometer Thinning. 1945 Growing Season 120 Days, 1946 Growing Season 147 Days, 1947 Growing Season 124 Days for the months of May, June, July, August, September and October. Size 20 inches x 22 inches on Graph Paper.

• Related Items:
  • Research file: HF 1945-01 Exp. 45-1 Dendrometer Measurement of Thinning Effectiveness

• Archives Location: Map Room, stack 5, drawer 5
• Access: Active