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Distribution of Biomass Within Small Tree and Shrub Form Quercus gambelii Stands

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Abstract:

Gambel oak (Quercus gambelii Nutt.) occupies approximately 3.5 million ha in the states of Arizona, Colorado, New Mexico, and Utah. It is becoming recognized as an important fuelwood resource. Design of appropriate management strategies requires information on the biomass distribution characteristics within these stands. Biomass components of eight Gambel oak small tree and shrub form stands (clones) were sampled in Utah. Stem densities ranged from 5,000 to 34,000 per ha of clone. Mean stem diameters varied from 36 to 117 mm. Live stems averaged 4,992 g including dead branches, while standing dead stems averaged 1,347 g. Live biomass per occupied hectare averaged 124,388 kg including 40,702 kg of bole. The ratio of aboveground to belowground live biomasses was unusually low--44:56. Total aboveground and belowground biomass including detritus was 184,292 kg per hectare of clone. Forest Sci. 32:234-242.

Keywords: Gambel oak; aboveground: belowground biomass ratio; allometric equations; fuelwood

Document Type: Journal Article

Affiliations: Principal Range Scientist, Range and Wildlife Habitat Laboratory, Pacific Northwest Research Station, USDA Forest Service, La Grande, OR 97850

Publication date: March 1, 1986

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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