Flora Library
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limits for water utilization host:www.na.fs.fed.us
Listing 1 - 6 from 6 for limits for water utilization
black cottonwood british columbia growing season red oak southern california pinyon juniper woodlands black oak grows forest cover cottonwood grows cool moist winter dry annual temperature pinyon pinus ash fraxinus pure stands american elm
Pinus edulis Engelm
... compared to that of junipers at higher water stresses, allows more complete site utilization in mixed stands (10,25,57). The average number of pinyons suitable for Christmas trees varies from a few ... the woodlands, especially those dominated by singleleaf pinyon, are invading areas below their historic elevational limits (3,12,17,41). Furthermore, tree density appears to be increasing in some stands ...
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Pseudotsuga macrocarpa (Vasey) Mayr
... between them and the Transverse Ranges. Northern limits are near Mount Pinos in Kern ... germinate. Seedling Development- Natural seedbed requirements for germination are broad. Seeds of bigcone ... litter are found on steep slopes, and water holding capacity and nutrients usually are low ... In Proceedings, Symposium on the Ecology, Management, and Utilization of California Oaks, June 26-28, 1979. Claremont ...
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Populus balsamifera L
... the range, but not until June or July at northern limits and upper elevations. The regional ratio of male to ... ) provided moisture is adequate (63). Germination can occur under water, and even mild water deficits reduce germination (33). Germination is reduced by ... utilization increases in the mixed-wood section of the boreal forest. Although the wood can be used for a variety of products (for example ...
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Populus deltoides Bartr
... the winter. Flooding often provides additional water. Nevertheless, there is usually inadequate moisture for optimum growth during the latter ... of asexual propagation of cottonwood permits immediate and complete utilization of superior genotypes, rooting ability is of great importance ... are required for seed maturation (9,20). The flowering period seems to be regular within the limits of geographic ...
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Populus trichocarpa To rr
... be transported long distances by wind and water. Although highly viable, longevity of black ... range of the species. This disease limits photosynthesis and causes leaves to fall prematurely, ... cottonwood. In early days, it was used for cooperage. Genetics Population Differences Black cottonwood ... S., and J. H. Cayford, eds. 1968. Growth and utilization of poplars in Canada. Canadian Department of ...
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Quercus velutina Lam
... Harty, F. M., and H. J. Stains. 1976. Squirrel utilization of catkins and acorns of the black ... from unglaciated southern Indiana to the range limits in northern Michigan. Proceedings, Pennsylvania Academy of Science ... water balance of oak seedlings. Forest Science 18(l):34-40. U.S. Department of Agriculture, Soil Conservation Service. 1975. Soil taxonomy: a basic system of soil classification for ...
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