. Age-class structure of old growth ponderosa pine/Douglas-fir stands and its relationship to fire history. Ponderosa pine Montana; Douglas fir Montana; Old growth forests Montana; Forest fires Montana. 3 5 7 9 1113 15 17 19 21 23 25 27 29 3133 35 37 39 4143 45 Diameter-Closs Midpoint (inches). 13 5 7 9 1113 15 17 19 2123 25 27 29 31 33 35 37 39 4143 45 Diameter-Class Midpoint (inches) Figures 6a-e—Comparison of stand structures in each plot as estimated for the year 1900 and as measured in 1991-1993. The 1900 estimate does not include small trees that may have been present, but died afterward
. Age-class structure of old growth ponderosa pine/Douglas-fir stands and its relationship to fire history. Ponderosa pine Montana; Douglas fir Montana; Old growth forests Montana; Forest fires Montana. 3 5 7 9 1113 15 17 19 21 23 25 27 29 3133 35 37 39 4143 45 Diameter-Closs Midpoint (inches). 13 5 7 9 1113 15 17 19 2123 25 27 29 31 33 35 37 39 4143 45 Diameter-Class Midpoint (inches) Figures 6a-e—Comparison of stand structures in each plot as estimated for the year 1900 and as measured in 1991-1993. The 1900 estimate does not include small trees that may have been present, but died afterwards as a result of various agents. 16. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Arno, Stephen F; Scott, Joe H; Hartwell, Michael G; Intermountain Research Station (Ogden, Utah). Ogden, UT : U. S. Dept. of Agriculture, Forest Service, Intermountain Research Station
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Keywords: ., bo, bookcentury1900, bookcollectionbiodiversity, bookleafnumber20
