Freezing decayed wood to facilitate ring counts and width measurements /

Herman, Francis R.; Firth, J.; Smith, Clark E.

doi:10.5962/bhl.title.70660

Cited by 1 publication

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“…Sandwiching them between strips of 1/4inch plywood eliminated breakage and loss of information. These later were carefully soaked in water and frozen to facilitate ring counts and measurements (Herman et al 1972a(Herman et al , 1972b , 1970, 1960, 1950, etc. , the first multiple-ring count on each section from circumference must span three growth rings to reach an even decade.…”

Section: Thctmentioning

confidence: 99%

Field and computer techniques for stem analysis of coniferous forest trees /

Herman¹,

DeMars²,

Woollard³

1975

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1975. Field and computer techniques for stem analysis of coniferous forest trees. USDA For. Serv. Res. Pap. PNW-194, 51 p., illus. Pacific Northwest Forest and Range Experiment Station, Portland, Oregon. Field and computer techniques for stem analysis adaptable to both youngand old-growth conifers are presented. Field instructions include a step-by-step explanation of tree cutting, sectioning, ring count, and measurement techniques. A computer program adapted to field techniques reproportions a tree's radial measurement data, calculates height-agesite index information, punches the reproportioned and height-age-site index information on cards, and plots height-age and stem profile graphs. These stem analysis techniques are adaptable to trees of any size up to 800 years old and to either American or metric measures. These instructions enhance the usefulness of the stem analysis research method in obtaining growth information for forest managers.

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Section: Thctmentioning

confidence: 99%