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Keyword: Pinus ponderosa

Injury to plants from rapidly dropping temperature in Washington and northern Idaho

Publications Posted on: August 14, 2015
In nearly 70 years of recorded weather history, Washington and northern Idaho have on three occasions experienced exceptionally sharp freezes in late autumn or early winter that caused considerable damage to plants. A brief review of these events is warranted since the records are consistent enough to permit the drawing of significant conclusions.

A comparison of season of cambial growth in different geographic races of Pinus ponderosa

Publications Posted on: August 14, 2015
Ecotypic specialization in different parts of the ranges of widely distributed species is a phenomenon that has commanded the attention of botanists for several decades. Experience has usually shown that when plants are moved from their native habitat into a different environment they become subject to injuries from factors associated with the new environment, although occasionally they may prove more successful.

Sowing and planting season for western yellow pine

Publications Posted on: August 06, 2015
In experiments with the western yellow pine (Pinus ponderosa) at the Savenac Nursery at Haugan, Mont., many helpful things have been learned, although it may now be seen that the first years of experimentation were not as effective as they might have been.

Studies in western yellow pine nursery practice

Publications Posted on: August 06, 2015
In 1912 and 1913, when nursery experiments were started under direction of the then "Priest River'' Forest Experiment Station, at Priest River, Idaho, and elsewhere, western yellow pine (Pinus ponderosa) was one of the principal species being planted on a large scale in the northern Rocky Mountain region and millions of plants were being raised each year in the Forest Service nurseries; but comparatively little careful study had been made to d

Water potential in ponderosa pine stands of different growing-stock levels

Publications Posted on: May 07, 2015
Water potential was measured in five ponderosa pine (Pinus ponderosa Laws.) in each of four stands of different growing-stock levels at two locations in the Black Hills of South Dakota. Mean water potentials at dawn and midday varied significantly among growing-stock levels at one location, but differences were not consistent.

Bark temperature patterns in ponderosa pine stands and their possible effects on mountain pine beetle behavior

Publications Posted on: May 07, 2015
Bark temperatures on the north and south sides of five ponderosa pines (Pinus ponderosa Laws.) in each of four growing stock levels in two areas in the Black Hills of South Dakota were monitored periodically from May through August 1989. Temperatures were significantly different among growing stock levels and between sides of the tree.

Forest vegetation of the Black Hills National Forest of South Dakota and Wyoming: A habitat type classification

Publications Posted on: May 07, 2015
A vegetation classification based on concepts and methods developed by Daubenmire was used to identify 12 forest habitat types and one shrub habitat type in the Black Hills. Included were two habitat types in the Quercus macrocarpa series, seven in the Pinus ponderosa series, one in the Populus tremuloides series, two in the Picea glaucci series, and one in the Cercocarpus montanus series.

Five-year results of a ponderosa pine provenance study in the Black Hills

Publications Posted on: May 07, 2015
Survival and height growth data were collected after five field growing seasons from ponderosa pine progeny representing 75 provenances of natural stands in the Great Plains and Northern Rockies. Results showed that trees from no other provenance survived significantly better or grew significantly taller than trees from the Black Hills.

Silviculture of ponderosa pine in the Black Hills: The status of our knowledge

Publications Posted on: May 07, 2015
This Paper, intended as a guide for professional foresters, describes major silvicultural conditions likely to be encountered in the Black Hills, reasonable treatment options, and probable results and implications of these treatments. It also describes silvical characteristics and behavior of Black Hills ponderosa pine, and a variety of proven silvicultural tools.

Canopy fuel and tree biomass data from the Interior West

Datasets Posted on: March 27, 2015
This data set contains destructively sampled canopy fuel and tree biomass data from five study sites in the Interior West.