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Site Description - FP3A
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| Alias: |
231FSL-LD-FP3A_poplar
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| Site status: |
Active
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| Latitude: |
64.72195559 |
| Longitude: |
-148.1468545 |
| Size: |
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Site Information - FP3A
BNZ-LTER site*
* Site information should be complete for BNZ LTER sites.
Information for related sites might be incomplete.
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General Information
| Site synonyms |
231,
FSL-LD-FP3A_poplar,
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| General Description |
Mixed Balsam Poplar and White Spruce (Open Populus balsamifera-Picea glauca community)
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| Vegetation Description |
The mixed balsam poplar and white s[pruce stage is transitional between the deciduous balsam poplar stages and the conifer shite and black spruce stands. In this stand 100 year old balsam poplar are dominant in the canopy but there is a well developed understory of 40 - 50 year old white spruce that are beginning to reach into the canopy. The white spruce range from 20 - 30 cm in diameter with heights of 15-20 m while balsam poplar have diameters of from 30-50cm and are 20- 25 m in height. Density of white spruce is 480/ha and balsam poplar, 300/ha: basal area is 15m2/ha and 9 m2/ha. There is heavy mortality in the balsam poplar because of the prevalence of heart rot.
The shrub layer consists primarily of Alnus tenuifolia and Rosa acicularis with a total cover of 50%.
The herbaceous and moss layer in this stand is very sparse, perhaps due to frequent flooding and heavy silt deposition. the herbaceous layer covers less than 20% and is comprised of a number of species, the most common being Cornus canadensis, Equisetum arvense, and Carex concinna.
Deciduous leaf and twig litter form a thick layer on the forest floor. On downed logs and under some of the larger spruce, however, patches of feathermosses, primarily Hylocomium splendens, occur. Total moss cover is under 10%.
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| History |
This study site was established in 1987 as an LTER site.
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| Directions |
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The Bonanza Creek LTER, including this website, is supported by the
National Science Foundation through awards
DEB-0620579,
DEB-0423442,
DEB-0080609,
DEB-9810217,
DEB-9211769,
DEB-8702629
and by the USDA Forest Service, Pacific Northwest Research Station through agreement number RJVA-PNW-01-JV-11261952-231.
Any opinions, findings, conclusions, or recommendations expressed in the
material are those of the author(s) and do not necessarily reflect
the views of the supporting agencies or the program as a whole.
© Bonanza Creek LTER, 2009.
Last modified 22-Nov-09
UAF is an affirmative action/equal opportunity employer and educational institution.
This site is a member of the LTER Network.
Disclaimer
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