Browsing by Author "Richard H. Waring"

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    Forests: Fresh Perspectives from Ecosystem Analysis
    (1980) Richard H. Waring
  • Thumbnail Image
    Item
    Reafforestation in the U. S. Pacific Northwest
    (1976) Richard H. Waring
    The Pacific Northwest is economically dependent upon its forest resources, which at present represent about 30% of the nations softwood supply. Predicted decreases in the available supply have encouraged more intensive forest management, and new methods of planting, harvesting, and transport, have been developed. Even with these improvements, problems exist in reducing erosion and accommodating other uses of forest lands and streams. With adequate planning and effort, however, most of these problems can be solved. But costs are high, and State laws controlling all forest practices are forcing Federal, State, and private, landowners to cooperate in planning for the future. Decisions that must soon be made should reflect an ecological understanding that could ensure the economic future of the Pacific Northwest.
  • Thumbnail Image
    Item
    The Relationship of Maximum Canopy Leaf Area to Forest Growth in Eastern Washington
    (1982) Paul E. Schroeder; Brooks McCandlish; Richard H. Waring; David A. Perry
    Because forests in eastern Washington often exhibit stocking levels significantly below those predicted by standard yield tables, a method was sought to better estimate potential forest-site productivity. Maximum canopy development, expressed as layers of leaves per unit of ground area, or Leaf Area Index (LAI), was more closely related to maximum current stemwood production than was site index alone or a combination of site index, basal area, and age; however, the relationship was not regionally independent. A ratio of annual stemwood production per unit of leaf area, derived from measurements of radial growth and sapwood thickness, was responsive to changes in canopy density within a particular forest but was not sufficiently sensitive to estimate maximum potential LAI.