Permanent-plot Procedures for Silvicultural and Yield Research

Permanent-plot Procedures for Silvicultural and Yield Research
Author: Robert O. Curtis
Publisher:
Total Pages: 92
Release: 2005
Genre: Forest site quality
ISBN:

This paper reviews purposes and procedures for establishing and maintaining permanent plots for silvicultural and yield research, sampling and plot design, common errors, and procedures for measuring and recording data. It is a revision and update of a 1983 publication. Although some details are specific to coastal Pacific Northwest conditions, most of the material is widely applicable.

Comprehensive Database of Diameter-based Biomass Regressions for North American Tree Species

Comprehensive Database of Diameter-based Biomass Regressions for North American Tree Species
Author: Jennifer Caroline Jenkins
Publisher:
Total Pages: 52
Release: 2004
Genre: Forest biomass
ISBN:

A database consisting of 2,640 equations compiled from the literature for predicting the biomass of trees and tree components from diameter measurements of species found in North America. Bibliographic information, geographic locations, diameter limits, diameter and biomass units, equation forms, statistical errors, and coefficients are provided for each equation, along with examples of how to use the database. The CD-ROM included with the paper version of this publication contains the complete database (Table 3) in spreadsheet format (Microsoft Excel 2002® with Windows XP®). The database files can also be viewed in both spreadsheet and pdf formats by directing your browser to the Global Change page at http://www.fs.fed.us/ne/global/pubs/books/index.html