Keyword: paper birch

• Ecology and management of B.C. hardwoods.
  http://www.for.gov.bc.ca/hre/pubs/pubs/0163.htm
  British Columbia has six major hardwood species: trembling aspen, paper birch, balsam poplar, black cottonwood, red alder, and bigleaf maple. Interest in utilization and management of British Columbia's broadleaved tree species (hardwoods) has grown substantially over the past decade. In B.C. broadleaved forests represent approximately 11% of the productive forest land base. Mixedwood forests, comprised of mixtures of conifers and broadleaves, represent approximately 35% of B.C.'s productive forest land base. In northeastern B.C. trembling aspen is being harvested for production of oriented stand board and pulp. In southwestern B.C. red alder is being harvested for sawlumber, with waste chips being used for pulp. As markets develop for B.C. hardwood products interest in the management of hardwoods is expected to grow. In addition, broadleaves serve important ecological roles and contribute to biodiversity and to the productivity and sustainability of our forests. ...

• A comparison of manual brushing treatments in the ICHdw at Redfish Creek: 10-year results from blocks 10-13.
  http://www.for.gov.bc.ca/hre/pubs/pubs/0223.htm
  After harvesting, sites in the Interior Cedar-Hemlock Dry Warm subzone (ICHdw) frequently regenerate to rich, brush-dominated communities that can inhibit successful conifer establishment. Species common to these post-harvested areas include: paper birch (Betula papyrifera Marsh.), Douglas maple (Acer glabrum Torr. var. douglasii [Hook.] Dipp.), redstem ceanothus (Ceanothus sanguineus Pursh), beaked hazelnut (Corylus cornuta Marsh.), ocean spray (Holodiscus discolor (Pursh) Maxim.), common snowberry (Symphoricarpos albus [L.] Blake), thimbleberry (Rubus parviflorus Nutt.), and fireweed (Epilobium angustifolium L.). Located on the lower valley slopes of southeastern British Columbia, the ICHdw subzone also features other important land uses that make forest management complex and controversial. In addition to being the most diverse subzone in the province in terms of tree species (Braumandl and Curran 1992), this subzone often provides critical winter ...

• Paper Birch Genecology and Physiology: Spring Dormancy Release and Fall Cold Acclimation.
  http://www.for.gov.bc.ca/hre/pubs/pubs/1007.htm
  Forest managers in British Columbia increasingly manage some forests as mixed species stands that include paper birch (Betula papyrifera Marsh.), which regenerates naturally or can be planted. This genecology study, in association with ongoing tree improvement field studies, is aimed at developing seed transfer guidelines and identifying faster growing sources of paper birch for use in BC forests. Two of the objectives discussed here are to examine the effects of seed origin on (1) dormancy release (bud flushing), and (2) growth cessation and cold acclimation. ...

• Measurement and analysis of genetic differences in experimental forest tree (paper birch) populations.
  http://www.for.gov.bc.ca/hre/pubs/pubs/1047.htm
  Measurement and analysis of genetic differences in experimental forest tree (paper birch) populations. ...