Index Catalog // ScholarsArchive@OSU

Summary of a discussion : The relationship between land use and surface water phosphorus concentrations

Creator:: Stewart, Scott
Abstract:: This report is a concise summary of information, ideas, and questions presented at a symposium on phosphorus held at Oregon State University, November 12, 1996. The primary purpose of the symposium was to deal with issues of water quality as they relate to livestock management in the upper Klamath Basin....
Resource Type:: Technical Report
Full Text:: melt yielding flushes of P. The Yamhill Basin Scott Stewart, a graduate student in soil science at

Sensitivity analysis as "propagation of error" and model validation

Creator:: Overton, W. Scott
Abstract:: Conclusion: The first part of this note deals with problems of propagation of error and the latter part with questions commonly identified as "model validation" questions. It is concluded that all validation questions can be resolved into two parts: (1) strategic aspects, involving logical and inferential structures and (2) tactical...
Resource Type:: Technical Report
Full Text:: ERROR" AND MODEL VALIDATION '4ODELING NOTEBOOK Scott Overton Oregon State University Some

The Douglas-fir tussock moth in the Northern Region : a cartographic history of outbreaks from 1928 to 1973

Creator:: Tunnock, Scott
Abstract:: The Douglas-fir tussock moth, Orgyia pseudotsugata McD., periodically defoliates Douglas-fir, true firs, and other host trees in forests of the western United States. In the Northern Region, these infestations occur about once every decade. This history covers the earliest recorded outbreak in northeastern Washington from 1928 to 1930 and includes...
Resource Type:: Technical Report
Full Text:: ; ; .. n -2- 44 , „ ..t. , .., , r,...rlf g , .r' p„„i..... . , ,s, .,,,_?. .4'1 ,-c

Thermoperiods and soil temperatures as they affect growth and dormancy of Douglas-fir seedlings of different geographic origin

Creator:: Lavender, Denis P., Overton, W. Scott, and Oregon State University. Forest Research Laboratory
Abstract:: The effects of a range of thermoperiods and soil temperatures upon growth of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings were studied. The seeds, of varieties glauca and menziesii, came from eight widely separated areas. Plants from both varieties made maximum growth with soil and air temperatures between 18 and 24...
Resource Type:: Technical Report
Full Text:: They Affect Growth and Dormancy of Douglas-Fir Seedlings of Different Geographic Origin By DENIS P

Potential Douglas-fir tussock moth damage in northern Idaho in 1974 based on a 1973 fall egg mass survey

Creator:: Tunnock, Scott and Livingston, R. Ladd
Abstract:: An epidemic of Douglas-fir tussock moth was detected in northern Idaho in 1972. In 1973, aerial surveys showed that nearly 100,000 acres contained various degrees of visible defoliation. An egg mass survey of five reporting units made in the fall of 1973 determined potential for damage in 1974. Based on...
Resource Type:: Technical Report
Full Text:: Rockies Forest Pest Action Council, Coeur d'Alene, Idaho. by Scott Tunnockll and R. L. LivingstonV

Agricultural land use in the Tualatin Basin

Creator:: Scott, Eric F., Wood, Mary, Warkentin, Benno P., and Oregon State University. Water Resources Research Institute
Abstract:: This report presents estimates of land uses, concentrating on agricultural land in the Tualatin drainage basin. Acreage in different crop groups and agricultural water use and distribution in the watershed were estimated. The total amounts of nitrogen and phosphate applied to agricultural land and the average loading of nutrients per...
Resource Type:: Technical Report
Full Text:: on resource management . AGRICULTURAL LAND USE IN THE TUALATIN BASIN by Eric Scott, Department of

Evaluation of a hemlock sawfly outbreak in the northern tip of Idaho, 1985

Creator:: Tunnock, Scott and United States. Forest Service. Northern Region
Abstract:: A rare outbreak of hemlock sawfly, Neodiprion tsugae Middleton, was detected in August in drainages near the Canadian border in Idaho infesting several thousand acres. Some stands of western hemlock and subalpine fir were severely defoliated. Understory Engelmann spruce trees were lightly defoliated. The sawfly overwinters in the egg stage...
Resource Type:: Technical Report
Full Text:: • • • EVALUATION OF A HEMLOCK SAWFLY OUTBREAK IN THE NORTHERN TIP OF IDAHO - 1985 by Scott Tunnock, Entomologist

Suppression of cranberry girdler damage in beds of Douglas-fir seedlings, Coeur d'Alene Nursery, Idaho Panhandle National Forest, 1984

Creator:: Tunnock, Scott and United States. Forest Service. Northern Region
Abstract:: The cranberry girdler, Chrysoteuchia toparia Zeller, has caused increasing damage to tree seedlings in the Coeur d'Alene Nursery since 1980. Heaviest feeding has occurred on the tap roots of 2+0 Douglas-fir stock. By 1983, 8.2 percent of the seedlings examined in seedbeds were injured by this moth. A spray program...
Resource Type:: Technical Report
Full Text:: FOREST - 1984 by Scott Tunnock, Entomologist ABSTRACT The cranberry girdler, Chrysoteuchia toparia

Seasonal and diurnal patterns of water status in Acer circinatum

Creator:: Scott, David R. M., Lassoie, J. P., U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: During the summer of 1971, diurnal patterns of water status were monitored in Acer circinatum. Measurements of transpiration rate, internal moisture stress, and relative leaf resistance were used to characterize the water status of the tree. For the days examined, the diurnal and seasonal fluctuations of water status in relation...
Resource Type:: Technical Report
Full Text:: WATER STATUS IN ACER CIRCINATUM D. R. M. Scott and J. P. Lassoie University of washington ABSTRACT

Diurnal dimensional fluctuations in Douglas-fir stems in response to plant internal moisture status and environment

Creator:: Scott, David R. M., Lassoie, J. P., U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: Preliminary results of a comprehensive study of hydraulic fluctuations in Douglas-fir (Pseudotsuga menziesii) stems in response to plant water status and environment are presented. Diurnal changes in stem circumference near DBH of a dominant Douglas-fir were monitored using automated band dendrometers. Measurements of transpiration rate, internal moisture stress and stomata...
Resource Type:: Technical Report
Full Text:: DOUGLAS-FIR STEMS IN RESPONSE TO PLANT INTERNAL MOISTURE STATUS AND ENVIRONMENT D. Ft. M. Scott and J. P

ScholarsArchive@OSU

Summary of a discussion : The relationship between land use and surface water phosphorus concentrations

Sensitivity analysis as "propagation of error" and model validation

The Douglas-fir tussock moth in the Northern Region : a cartographic history of outbreaks from 1928 to 1973

Thermoperiods and soil temperatures as they affect growth and dormancy of Douglas-fir seedlings of different geographic origin

Potential Douglas-fir tussock moth damage in northern Idaho in 1974 based on a 1973 fall egg mass survey

Agricultural land use in the Tualatin Basin

Evaluation of a hemlock sawfly outbreak in the northern tip of Idaho, 1985

Suppression of cranberry girdler damage in beds of Douglas-fir seedlings, Coeur d'Alene Nursery, Idaho Panhandle National Forest, 1984

Seasonal and diurnal patterns of water status in Acer circinatum

Diurnal dimensional fluctuations in Douglas-fir stems in response to plant internal moisture status and environment

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