Skip to Main Content
Diameter Measurement in Bald CypressAuthor(s): Bernard R. Parresol; James E. Hotvedt
Source: Forest Ecology and Management, 33/34 (1990) 509-515
Publication Series: Miscellaneous Publication
PDF: View PDF (234 KB)
DescriptionThe usual practice of measuring diameter at 4.5 feet ( 1.3 m) or Dbh is meaningless in wetland tree species such as bald cypress (Taxodium distichum (L.) Rich.), due to the presence of fluted basal swells. Since buttress dimensions usually have no consistent relation to volume or form in the tree, the current practice among life-sciences professionals is to measure stem diameter 18 in (50 cm) above `pronounced' butt swelling. This measure is termed normal diameter (Dn). This paper contrasts the use of six fixed-height diameter-measurement points ranging from 6 ft ( 1.8 m) to 11 ft (3.4 m) against Dn (a variable-height measurement point) for predicting cubic volume. Results show an increase in precision using the upper live fixed-height measurements over D, and a considerable increase in precision using diameter measured at 10 ft (3.0 m) and 11 ft (3.4 m). Since results improved only slightly using diameter measured at 11 ft (3.4 m) over 10 ft (3.0 m), diameter at 10 ft (D10) is recommended as a better alternative than D, for working with cypress.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationParresol, Bernard R.; Hotvedt, James E. 1990. Diameter Measurement in Bald Cypress. Forest Ecology and Management, 33/34 (1990) 509-515
- A Volume and Taper Prediction System for Bald Cypress
- Sex pheromone of the baldcypress leafroller (Lepidoptera: Tortricidae)
- Growth of 31-Year-Old Baldcypress Plantation
XML: View XML