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Presettlement regeneration patterns in a southwestern ponderosa pine stand

Alan S. White


Summary - what did the authors do and why?

The author analyzed the age structure and spatial distribution of an old-growth ponderosa pine stand to determine patterns of historic regeneration.

Publication findings:

The author found that the stand of ponderosa pine they studied was fairly heterogeneous and did not regenerate in large, even-aged groups following large patches of mortality. They hypothesize that patches of additional fuel surrounding single or small groups of trees likely led to smaller patches of mortality during low-severity surface fires, which would create openings and seedbeds for new seedlings.

Fire and Ecosystem Effects Linkages

The author found that the stand of ponderosa pine they studied was fairly heterogeneous and did not regenerate in large, even-aged groups following large patches of mortality. They hypothesize that patches of additional fuel surrounding single or small groups of trees likely led to smaller patches of mortality during low-severity surface fires, which would create openings and seedbeds for new seedlings.

The author found that the stand of ponderosa pine they studied was fairly heterogeneous and did not regenerate in large, even-aged groups following large patches of mortality. They hypothesize that patches of additional fuel surrounding single or small groups of trees likely led to smaller patches of mortality during low-severity surface fires, which would create openings and seedbeds for new seedlings.