Now showing items 1-2 of 2

    • Mississippi's Forests, 2006 

      Oswalt, Sonja N.; Coulston, John W.; Johnson, Tony G.; Oswalt, Christopher M. (USDA Forest Service. Southern Research Station, 2009)
      Forest land covers 19.6 million acres in Mississippi, or about 65 percent of the land area. The majority of forests are classed as timberland. One hundred and thirty-seven tree species were ...
    • Ozone injury across the southern United States, 2002-06 

      Rose, Anita K.; Coulston, John W. (USDA Forest Service. Southern Research Station, 2009)
      In the Eastern United States, hourly concentrations of ozone typically range from 30 to 50 parts per billion (ppb), with events that may exceed 100 ppb. Typical exposure levels can cause visible ...