CP003: Precipitation chemistry concentrations and fluxes from Coyote Creek in the South Umpqua Experimental Forest and Fox Creek in the Bull Run Watershed in Mount Hood National Forest, 1969 to 1981

2021 ◽  
Author(s):  
Richard L. Fredriksen ◽  
Sherri L. Johnson
Keyword(s):  
Precipitation Chemistry ◽  
National Forest ◽  
The South ◽  
Mount Hood

scholarly journals POPULATION STRUCTURE AND PRODUCTION OF COPAIBA OLEORESIN BETWEEN VALLEYS AND HILLSIDES OF THE MINING AREA OFTROMBETAS RIVER - PARÁ1

2016 ◽  
Vol 40 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Jonas Gebara ◽  
Antenor Pereira Barbosa ◽  
Isabel Maria Gonçalves Azevedo ◽  
Bruno Oliva Gimenez
Keyword(s):  
Population Structure ◽  
Forest Inventory ◽  
Sustainable Management ◽  
Natural Populations ◽  
Mining Area ◽  
National Forest ◽  
The South ◽  
Potential Production ◽  
Average Value ◽  
Bauxite Ore

ABSTRACT We aimed in this work to study natural populations of copaiba (Copaifera multijuga Hayne) on the Monte Branco mountain at Porto Trombetas-PA, in order to support sustainable management and the exploitation of oleoresin from copaiba. We studied the population structure of copaiba on hillsides and valleys of the south face of Monte Branco, within Saracá Taquera National Forest, where bauxite ore was extracted in the biennium 2013-2014 by Mineração Rio do Norte (MRN). We produced a 100% forest inventory of the specie and of oleoresin extraction in order to quantify the potential production of the remaining area. The density of copaiba individuals with DBH > 30 cm was 0.33 individuals per hectare in the hillside and 0.25 individuals per hectare in the valley. Both environments presented a density of 0.28 individuals per hectare. The average copaiba oleoresin yield was 0.661±0.334 liters in the hillside and 0.765±0.280 liters in the valley. The average value of both environments together (hillside and valley) was 0.714±0.218 liters. From all individuals with DBH over 30 cm, 38 (58%) produced some amount of oleoresin, averaging 1.113±0.562 liters in the hillside, 1.329±0.448 liters in the valley and 1.190±0.355 liters in both environments together. The results show the need for planning the use of the surroundings of the study area in order to reach the required volume of copaiba to make feasible the sustainable management of oleoresin extraction in the region.

scholarly journals Comparison of Kalman filters in combining panel data from the annual inventory system of the South Korea National Forest Inventory

2013 ◽  
Author(s):  
Tzeng Yih Lam ◽  
Raymond L. Czaplewski ◽  
Jong Su Yim ◽  
Kyeong Hak Lee ◽  
Sung Ho Kim ◽  
...  
Keyword(s):  
Panel Data ◽  
South Korea ◽  
Forest Inventory ◽  
Kalman Filters ◽  
National Forest Inventory ◽  
Inventory System ◽  
National Forest ◽  
The South

Black Bears Prefer Urea-Fertilized Trees

1989 ◽  
Vol 4 (1) ◽  
pp. 13-15 ◽  
Author(s):  
E. E. Nelson
Keyword(s):  
Pseudotsuga Menziesii ◽  
Dominant Species ◽  
Tree Mortality ◽  
Ursus Americanus ◽  
Douglas Fir ◽  
Black Bears ◽  
National Forest ◽  
Feeding Damage ◽  
Mount Hood ◽  
The Difference

Abstract Feeding damage by black bears (Ursus americanus) to urea-fertilized 25-yr-old Douglas-firs (Pseudotsuga menziesii) in the Mount Hood National Forest, Oregon, resulted in tree mortality four times as severe as among unfertilized trees. Damage was most apparent following application of urea at 448 kg N/ha in 1972, and 224 kg N/ha in 1977. Only Douglas-fir, the dominant species in the stand, was attacked. Attacked trees were somewhat larger than the stand average, but the difference was not significant. Bears appeared to be attracted to the more vigorous trees, which were on fertilized plots. West. J. Appl. For. 4(1):13-15, January 1989.

Odell Lake Site: A New Paleo-Indian Campsite in Oregon

1948 ◽  
Vol 14 (1) ◽  
pp. 57-58
Author(s):  
L. S. Cressman
Keyword(s):  
Crater Lake ◽  
Forest Service ◽  
National Forest ◽  
The South ◽  
Cascade Mountains ◽  
South Side ◽  
East End ◽  
Lake Site

In the summer of 1937, a new paleo-Indian site was discovered at the south end of Odell Lake in Oregon. Odell Lake (PI. VI), lies in a glacial trough just east of the divide in the Cascade Mountains, in T 23 S, R 6½ E, Willamette Meridian. The elevation of the lake is 4,792 feet (Deschutes National Forest Map, Willamette Meridian, 1947).In the summer of 1946, the proprietors, Wilson J. Wade and Charles A. Porter, were excavating for the foundations and basement of a lodge on the south side of the outlet of Odell Lake on a bench or terrace at the east end, about 25 feet above the lake. Richard P. Bottcher, Engineer of the U. S. Forest Service, Deschutes National Forest, was present. The excavation went through a bed of pumice and into the glacial moraine on which it rests. Bottcher picked up points which he thought came from under the pumice. He showed these to Mr. Phil Brogan of Bend, Oregon, Managing Editor of the Bend Bulletin, who was aware of the previous finds under Crater Lake pumice. Brogan shortly afterward called my attention to the site.

scholarly journals Impacts of the National Forest Rehabilitation Plan and Human-Induced Environmental Changes on the Carbon and Nitrogen Balances of the South Korean Forests

Forests ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1150
Author(s):  
Hyung-Sub Kim ◽  
Florent Noulèkoun ◽  
Nam-Jin Noh ◽  
Yo-Whan Son
Keyword(s):  
Air Temperature ◽  
Environmental Changes ◽  
Co2 Concentration ◽  
N Deposition ◽  
National Forest ◽  
The South ◽  
South Korean ◽  
Rehabilitation Plan ◽  
C And N ◽  
Forest Rehabilitation

Humans have affected the carbon (C) and nitrogen (N) cycles in forests; however, the quantification of the responses of forest C and N balances to human activities is limited. In this study, we have quantified the impacts of the long-term national forest rehabilitation plan and the contribution of the increase in air temperature, CO2 concentration, and N deposition on the C and N balances of the South Korean forests during 1973–2020 by using a biogeochemical model. During the simulation period, the C balance increased from 0.2 to 4.3 Mg C ha−1 year−1, and the N balance increased from 0.2 to 17.4 kg N ha−1 year−1. This resulted in the storage of 825 Tg C and 3.04 Tg N by the whole South Korean forests after the national forest rehabilitation plan. The increase in air temperature, CO2 concentration, and N deposition contributed −11.5, 17.4, and 177 Tg C to the stored C stock, respectively, and −25.4, 8.90, and 1807 Mg N to the stored N stock, respectively. This study provides references for future forest rehabilitation efforts and broadens our knowledge on the impacts of human-induced environmental changes on the C and N balances of forests.

Heritage Management in the U.S. Forest Service: A Mount Hood National Forest Case Study

2002 ◽  
Vol 15 (4) ◽  
pp. 359-369 ◽  
Author(s):  
Grace A. Wang ◽  
Dorothy H. Anderson ◽  
Pamela J. Jakes
Keyword(s):  
Forest Service ◽  
Heritage Management ◽  
National Forest ◽  
Mount Hood ◽  
The U.S

Description of the mature larva of Pedilus flabellatus (Coleoptera: Pyrochroidae: Pedilinae), with phylogenetic implications of the discovery

1991 ◽  
Vol 69 (8) ◽  
pp. 2234-2238 ◽  
Author(s):  
Daniel K. Young ◽  
Darren Pollock
Keyword(s):  
Pseudotsuga Menziesii ◽  
Adult Stage ◽  
National Forest ◽  
Species Identity ◽  
Mature Larva ◽  
Phylogenetic Implications ◽  
Mount Hood

The larva of Pedilus flabellatus (Horn) was collected from debris associated with the base of a dead, standing Pseudotsuga menziesii in the Mount Hood National Forest, Oregon; it is described and illustrated. Species identity was established by rearing a larva to the adult stage. The larva of Pedilus flabellatus holds meaningful phylogenetic implications. The presence of an uninterrupted transverse series of asperities on sternum 9 is unique among larvae of Pedilus, and supports the previously hypothesized classification of the Pyrochroidae: Pyrochroinae + Pedilinae + Cononotinae. This character is discussed with respect to its presence in the Pyrochroidae and other families of Heteromera.

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