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Overview
Basics
Basics
Enhance conservation and recruitment of sugar pine using multi aged stand management and restoration strategies by quantifying sugar pine regeneration and growth requirements and rates in the Lake Tahoe Basin mixed-conifer forests.
Completed
2007
2007
2010
$194,158
Pat Manley (pmanley@fs.fed.us)
10/03/2017
10/03/2017
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| Location Information | Location Notes |
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Organizations
EIP Details
EIP Basics
EIP Basics
04.01.01.0067 - P008: Restoring Sugar Pine in the Tahoe Basin: Regeneration Ecology and Recruitment Dynamics of Sugar Pine Under Various Stand Structures
Performance Measures
Expected Performance Measures
Expected Performance Measures
No expected performance measures set for this project.
Reported Performance Measures
Reported Performance Measures
No annual performance measure accomplishments entered for this project.
Funding
Expected Funding
Expected Funding
$194,158
$194,158
$0
| Total | |||
|---|---|---|---|
| Unknown or Unassigned | $194,158 | $194,158 | $0 |
| Grand Total | $194,158 | $194,158 | $0 |
Reported Expenditures
Reported Expenditures
| Total | 2010 | 2009 | 2008 | 2007 | |
|---|---|---|---|---|---|
| Southern Nevada Public Land Management Act (Pacifi... | $194,158 | $48,539 | $48,540 | $48,540 | $48,539 |
| Grand Total | $194,158 | $48,539 | $48,540 | $48,540 | $48,539 |
Photos
Other Details
Watersheds
No watersheds set for this project.
Threshold Categories
-
Sugar pine (Pinus lambertiana) is a key conifer species of the Sierra Nevada mixed-conifer forests that has been declining due to fire suppression, logging and white pine blister rust for the past several decades.
Local and Regional Plans
No Local and Regional Plans set for this project.
Related Projects
Related Projects
No Related Projects set for this project.
External Links
No external links entered.
Notes
Notes
| 07/20/2017 4:31 PM | System | Objectives: • To compare competition variables and tree characteristics at the individual tree-scale between true saplings (TS) and pygmy trees (PYG) in stands of differing site productivity and management history. • To identify the best predictors of tree status (TS vs. PYG) to develop a predictive model for use by managers. • To define relationships between canopy closure, stand structure and sugar pine height growth rates in stands with differing management histories. • To identify the most important stand, microsite, and individual tree attributes explaining past growth rates and develop models to predict stand structures that promote these attributes at the stand and individual seedling/sapling level. |
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| 07/20/2017 4:30 PM | System | Findings: • Age structure was typically comprised of one or two cohorts with a few stands having remnant stems from pre-Euro-American settlement (prior to 1850). Overstory basal areas (live tree and total) varied considerably between stands and management types, with the highest live tree basal area approximately four times greater (59.4 m2 ha-1) than the lowest (14.3 m2 ha-1). • For total basal area, the largest value (68.5 m2 ha-1) was approximately 3.5 times larger than the lowest value (19.1 m2 ha-1). The median live and total basal areas were 42.6 and 45.3 m2 ha-1, respectively. • Tree density also varied widely among stands (overstory = 108.1 -632.5 (trees ha-1) and understory = 420.4 - 5585.4 (trees ha-1)), as did stand density index (247.3 - 1473.9). *** See www.fs.fed.us/PSW/partnerships/tahoescience for additional findings. |
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| 07/20/2017 4:29 PM | System | Management Implications: • Treatments that create a variable horizontal spatial pattern, such as modified group selection or variable density thinning, are the management strategies most likely to meet the multiple objectives of lowering density, reducing fire hazard, maintaining aesthetics, and providing for the establishment and recruitment of sugar pine. • Prescribed burning is also likely to result in a similar spatial heterogeneity and create desirable seedbeds for sugar pine germination. • Leaving residual, large sugar pine in the openings provides a nearby seed source while maintaining some structural heterogeneity in the openings. *** See www.fs.fed.us/PSW/partnerships/tahoescience for additional management implications. |
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| 07/20/2017 4:27 PM | System | Publications: www.fs.fed.us/PSW/partnerships/tahoescience Angell, N. J. 2011. Determinants of Pygmy Sugar Pine in the Lake Tahoe Basin, USA (Doctoral dissertation, Northern Arizona University). |