A regression-adjusted approach can estimate competing biomass

James Miller

Treesearch

A regression-adjusted approach can estimate competing biomass

Informally Refereed

Authors:

James Miller

Year:

1983

Type:

Scientific Journal

Station:

Southern Research Station

Source:

In: Proceedings Second Biennial Southern Silvicultural. Research Conference, 1982 November 4-5; Atlanta, GA. Gen . Tech. Rep. SE-24. Asheville, NC: U.S. Department of Agriculture, Forest Service: 344-351.

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Abstract

A method is presented for estimating above-ground herbaceous and woody biomass on competition research plots. On a set of destructively-sampled plots, an ocular estimate of biomass by vegetative component is first made, after which vegetation is clipped, dried, and weighed. Linear regressions are then calculated for each component between estimated and actual weights and are used to adjust ocular estimates of biomass on permanent or temporary plots. In trials, R²'s ranged from 0.57 to 1.00. Training hints and calculation procedures are outlined.

Citation

Miller, James H. 1983. A regression-adjusted approach can estimate competing biomass. In: Proceedings Second Biennial Southern Silvicultural. Research Conference, 1982 November 4-5; Atlanta, GA. Gen . Tech. Rep. SE-24. Asheville, NC: U.S. Department of Agriculture, Forest Service: 344-351.