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Definitions and codes for seral status and structure of vegetation.

Posted date: May 12, 2016
Publication Year: 
1995
Authors: Hall, Frederick C.; Bryant, Larry; Clausnitzer, Rod; Geier-Hayes, Kathy; Keane II, Robert E.; Kertis, Jane; Shlisky, Ayn; Steel, Robert.
Publication Series: 
General Technical Report (GTR)
Source: Gen. Tech. Rep. PNW-GTR-363. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 39 p

Abstract

Definitions and codes for identifying vegetation seral status and structure are desired for land management planning, appraising wildlife habitat, and prescribing vegetation treatment. Codes are only presented; they are not a system for determining seral status or stand structure. Terms defined are climax, potential natural community (PNC), succession, seral status, thresholds, altered PNSs, life-form layer, dominant species, successional indicator species, structure classes, cover, and strata. Plant communities may be divided into three life-form layers where appropriate: tree, shrub, and herb/cryptogam. Each layer may be appraised and coded separately for seral status, or a single code may be used. Coding is provided for plant community structure class according to size, cover, and strata in a life-form layer. Seral status and structure may be coded together.

Citation

Hall, Frederick C.; Bryant, Larry; Clausnitzer, Rod; Geier-Hayes, Kathy; Keane, Robert; Kertis, Jane; Shlisky, Ayn; Steel, Robert. 1995. Definitions and codes for seral status and structure of vegetation. Gen. Tech. Rep. PNW-GTR-363. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 39 p