Author: Colin D. MacLeanPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 12
Book Description
Estimating Dunning's Site Index from Plant Indicators
Author: Colin D. MacLeanPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 12
Book Description
USDA Forest Service General Technical Report PNW.
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 224
Book Description
General Technical Report INT.
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 848
Book Description
Using Indicator Plants to Assess Susceptibility of California Red Fir and White Fir to the Fir Engraver Beetle
Author: George T. FerrellPublisher:
ISBN:
Category : Abies concolor
Languages : en
Pages : 6
Book Description
Using a Vegetation Drought Index (VDI) for estimating the susceptibility of California red and white firs to the fir engraver beetle (Scolytus ventralis) was evaluated in northern California forests where these true firs (Abies species) occur in mixed conifer and true fir stands. Midway through the summer drought, true fir moisture stress-a known predisposing factor-was highest on sites with highest VDI values (most xeric). In mixed conifer stands, the susceptibility of white firs-as indicated by the mean percentage of their basal area killed annually-was highest on sites with highest VDI values. But in true fir stands, the susceptibility of mixed red and white firs was highest on sites with the lowest VDI values. Regression models with VDI, stand basal area, and percentage of true fir as regressors lacked the required predictive range and precision, suggesting that VDI will likely have to be used in combination with predictors other than, or in addition to, those analyzed.
USDA Forest Service Resource Bulletin PNW.
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 420
Book Description
Timber resources of the Kuskokwim flood plain and adjacent upland
Author: Karl M. HeggPublisher:
ISBN:
Category :
Languages : en
Pages : 720
Book Description
Timber Resource Statistics for Washington, January 1, 1973
Author: Patricia M. BassettPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 796
Book Description
Resource Bulletin PNW.
Author: Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 150
Book Description
U.S.D.A. Forest Service Resource Bulletin PNW.
Author: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 446
Book Description
Timber Resources of Northern Interior California, 1970
Author: Charles L. BolsingerPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 88
Book Description
