Harvard Forest

Search the Archives

Measuring diameter increase in young hardwood with a dial gauge micrometer caliper

• HF-ID: HF1947-09
• Category: Research Files
• Creator: Ward, M.
• Date: 1947
• Location: Prospect Hill Tract (Harvard Forest), PH I, PH VII, PH VIII
• Media: Paper
• Contents:
  • Report with graphs and map.
  • NOTE: During the 2017 Archive Renovations mice damaged the file folder. NO DATA WAS LOST OR DAMAGED. The file folder was replaced. 1 File Folder. Various.

• Keywords: silviculture, equipment
• Abstract:
  • The study was done on Prospect Hill, Compartments I, VII, VIII. The objectives of the experimental measurements are as follows:
  • 1. To determine the possibility of accurate and significant measurements of the growth or diameter increases of young hardwood stems through use of a small micrometer caliper, of the dial gauge type.
  • 2. To determine the relative rates of growth (or diameter increases) through the summer season of July and August of certain shaded hardwoods, as contrasted with those growing in more exposed areas but in similar sites.
  • 3. To indicate possible effects on growth of thinning young hardwoods in very dense stands.
  • 4. To determine the growth effects resulting from complete thinning of rather dense stump sprouts of young hardwoods.
  • 5. To determine, by measurements made four times daily, the diurnal fluctuations in diameter of young hardwood stems.

• Archives Location: Middle Room, stack 4, drawer 4
• Access: Active