| dc.date |
2006-11-07T23:22:34Z |
|
| dc.date |
2006-11-07T23:22:34Z |
|
| dc.date |
1974 |
|
| dc.date.accessioned |
2013-10-16T07:41:38Z |
|
| dc.date.available |
2013-10-16T07:41:38Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
http://hdl.handle.net/1957/3323 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/3323 |
|
| dc.description |
A study was conducted in summer of 1973 to assess impact of fluoride-insect
damage on radial growth of lodgepole pine near the Anaconda Aluminum
Company at Columbia Falls, Montana. Statistically significant growth
losses attributed primarily to the effects of fluorides were found in
40 14 of 17 unmanaged stands for the period 1968-1973 in the polluted area.
Radial growth reductions, estimated by comparison with a prediction
model, ranged from 0.002 to 0.071 inch. Radial growth loss was transformed
to volume loss, averaging 57 board feet per acre per year for the stands
examined. Potential height growth losses and observed mortality were not
considered. Hand-thinned stands in which growth acceleration should have occurred had not responded as expected. In fact, radial growth losses
from 9 to 22 percent were found. Volume losses were not computed for
the thinned stands. |
|
| dc.language |
en_US |
|
| dc.publisher |
Missoula, MT. : Forest Environmental Protection, USDA, Forest Service, Northern Region, State & Private Forestry |
|
| dc.relation |
Report (United States. Forest Service. Northern Region) |
|
| dc.relation |
no. 74-25 |
|
| dc.relation |
Forest environmental protection |
|
| dc.title |
Impact of fluorides and insects on radial growth of lodgepole pine near an aluminum smelter in Northwestern Montana : a preliminary inquiry |
|
| dc.type |
Technical Report |
|