Abies concolor En

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Colorado fir Colorado white fir White fir White Colorado fir California white fir

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Géographie (81) Histoire (18) Etudes de l'environnement (17) Littératures (16) Histoire, Philosophie et Sociologie des sciences (16) Etudes classiques (16) Gestion et management (15) Economies et finances (15) Sociologie (7) Linguistique (5) Anthropologie sociale et ethnologie (3) Archéologie et Préhistoire (2) Psychologie (1)

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180 documents
Reno Quadrangle, near Tahoe Forest , Nevada. Looking south to Peavine Peak. Hewn timber of Pinus jeffreyi cut approximately in 70's. No other Jeffey pine near. Abies concolor and Tsuga mertensiana in back. Brush is Artemesia tridentata and Cercocapus ledifoilious in background. Prunus emarginata and Ceanothus velutinus in foreground.
Richard C.P. Wilson (25 juin 2019)
Reno Quadrangle, Nevada. Looking southeast of stand of scrubby Abies concolor on slope of Peavine Peak. Trees 2-12 inches d.b.h. and mostly 5-25 feet tall. Few older trees as large as 3 feet d.b.h. and 100 feet tall. Dark shrubs are Cercocarpus ledifolius, others mostly Artemesia tridentata and Ceanothus velutinus.
Richard C.P. Wilson (25 juin 2019)
Reno Quadrangle, Nevada. Tahoe National Forest. Looking northeast from Mt . Rose Road toward Reno. Pinus jeffreyi and Pinus monticola second growth with Abies concolor, Abies magnifica in north slope foreground. Note dark arc patch of Purshia tridentata beyond timber in sage at right distance.
Richard C.P. Wilson (25 juin 2019)
Tahoe National Forest. Carson Quadrangle, Nevada. Mt. Rose Ridge, looking south across stump forest left by early 1870 mine timber operators. Low site Pinus jeffreyi. Abies concolor and magnifica second growth.
Richard C.P. Wilson (25 juin 2019)
Carson Quadrangle, Nevada. 1.5 mi. north of 5 mile house. Abies concolor 12" d.b.h. surrounded for many miles by Pinyon-Juniper Sage types. Tree in foreground is Pinus monophylla.
Richard C.P. Wilson (25 juin 2019)
Repeat of old photograph. Looking SSW on areas logged clean in 1860's for mill at Glenbrook( at lower end of meadow on lakeshore out of sight in photo). Shows natural reforestation of Jeffrey pine and Abies concolor on east side of Sierras in area where no reburns occurred.
Richard C.P. Wilson (25 juin 2019)
Closeup of second growth Jeffrey pine, Abies concolor, same location as # 208. Notice old stumps cut 60 years ago. Brush species = Arctostaphylos patula, Ceanothus cordulatus, Purshia tridentata.
Richard C.P. Wilson (25 juin 2019)
Repeat of old photograph at Spooner's Summit showing natural regeneration of Red and White Fir on center hillside since clear cutting. No reburns since logging. Jeffrey pine in foreground. Looking S.
Richard C.P. Wilson (25 juin 2019)
Looking west into Incline basin of Jeffrey pine, Abies concolor, fair stocking of second growth protected from fire.
Richard C.P. Wilson (25 juin 2019)
Timber encroaching on New Lava Flow sugar pine, western yellow pine and white fir. Note vent crater behind car.
C.R. Clar (25 juin 2019)
Looking S. Foreground: brushfield of Rhododendron californicum, Quercus sadleriana, Arctostaphylos patula, Arctostaphylos nevadensis, Ceanothus velutinus. Middle ground : sugar pine - Douglas fir type. Background; Sugar pine-red fir -white fir- Douglas fir at upper left; pure sugar pine at upper right: ponderosa pine western white pine upper center. Sugar pine-western white pine in ravine at right.
Albert Everett Wieslander (25 juin 2019)
Beside road to Hearst Ranch about 5 miles SE of McCloud. Young growth-old growth saw timber stand of young white firs, Douglas firs, and old Ponderosa pines with a predominance of WF and DF reproduction are PP, it appears that the pine stand may gradually be replaced by a Douglas fir, white fir stand. Site 175-200. Assoc. sp.: Arctostaphylos patula, Ceanothus cordulatus and bracken fern in openings.
(25 juin 2019)
By road to Hearst Ranch about 5 miles SE of McCloud. Old growth-young growth stand of old ponderosa pines and young trees of white fir, ponderosa pine, Douglas fir and Incense cedar in order of abundance. Site 175-200. Arctostaphylos patula, Ceanothus cordulatus as semi-dense understory. No hardwoods present.
(25 juin 2019)
Black Butte Mountain about 5 miles NW of Mt. Shasta near Hwy. 99. Non-commercial area with commercial conifers of white fir and Douglas fir. Entire slope of large talus rock. 5 to 15% timber density on the timbered areas of the slope.
(25 juin 2019)
Douglas fir white fir type along trail head of Hawkin's Creek. Undergrowth of Cornus nuttallii, Corylus sp. and Acer glabrum.
Albert Everett Wieslander (25 juin 2019)
1 mile northwest Harris Spring. White fir reproduction topping brush.
C.R. Clar (25 juin 2019)
White fir on north slope of High-hole Crater.
C.R. Clar (25 juin 2019)
Plot 1-D Western yellow pine -white fir type, Fruit Growers Supply Company, Lassen N.F. before logging.
Albert Everett Wieslander (25 juin 2019)
Plot 2-D Western yellow pine- white fir type , Fruit Growers Supply Company, Lassen N. F. before logging.
Albert Everett Wieslander (25 juin 2019)
Plot 1-J Western yellow pine- white fir type, Fruit Growers Supply Company, Lassen N.F. before logging.
Albert Everett Wieslander (25 juin 2019)
Plot 1-J. Western yellow pine -white fir type, Fruit Growers Supply Company, Lassen N.F. before logging.
Albert Everett Wieslander (25 juin 2019)
Plot 2-I. Western yellow pine- white fir type, Fruit Growers Supply Company, Lassen N.F. before logging.
Albert Everett Wieslander (25 juin 2019)
Plot 1-J. Western yellow pine- white fir type, Fruit Growers Supply Company, Sale, Lassen N.F. After logging.
Albert Everett Wieslander (25 juin 2019)
Plot 1-J. Western yellow pine- white fir type, Fruit Growers Supply Company, Sale, Lassen N. F. After logging.
Albert Everett Wieslander (25 juin 2019)
Plot 1-D. Western yellow pine- white fir type, Fruit Growers Supply Company, Sale, Lassen N.F. After logging.
Albert Everett Wieslander (25 juin 2019)

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