| dc.date |
2006-11-09T18:28:52Z |
|
| dc.date |
2006-11-09T18:28:52Z |
|
| dc.date |
1975 |
|
| dc.date.accessioned |
2013-10-16T07:41:44Z |
|
| dc.date.available |
2013-10-16T07:41:44Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
http://hdl.handle.net/1957/3340 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/3340 |
|
| dc.description |
An evaluation to establish baseline data on forest insect and disease
activity near a magnesium plant under construction in northeastern
Washington was initiated in 1974. The plant will emit significant
amounts of sulfur dioxide. Data indicates that several fungal
and insect species are at low populations. Needle retention appears
normal on ponderosa pine and Douglas-fir. Some tip necrosis was found
on pines and histological analysis of needles revealed a pollutant
syndrome. Tissue analyses indicated total sulfur in pine and fir
needles is about twice that found in "clean" areas in Montana. Sulfur
dioxide may be drifting in from Spokane, Washington, or Trail, B.C.,
Canada. In spite of evidence of a small amount of sulfur pollution
at present, the forested area in general appears in good health. The
data will be a good baseline to which future evaluations can be compared
after the magnesium plant begins production. |
|
| 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. 75-14 |
|
| dc.title |
Forest insect and disease status prior to operation of a magnesium plant in northeastern Washington |
|
| dc.type |
Technical Report |
|