Table 7.  Net volume of growing stock on timberland by species group and diameter class, Rhode Island, 2005 
  
                                                 (Standard error as percentage of total) 
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                                                      Diameter class (inches at breast height)                                         
          Species group      __________________________________________________________________________________________    All          
                                 5.0-     7.0-     9.0-    11.0-    13.0-    15.0-    17.0-    19.0-    21.0-            classes       
                                  6.9      8.9     10.9     12.9     14.9     16.9     18.9     20.9     28.9     29.0+                
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       Atlantic white-cedar         .0    100.0    100.0       .0       .0       .0       .0       .0       .0       .0    100.0  
       Pitch pine                 90.4     56.6     60.2     63.1     73.2     68.1     61.0       .0       .0       .0     56.2  
       Eastern white pine         32.9     36.8     60.8     67.8     47.5     47.1     71.3     55.3     70.7     71.6     37.2  
       Eastern hemlock            84.1     73.7     77.2     74.5    100.0    100.0    100.0       .0    100.0       .0     60.7  
       Other softwoods            72.7    100.0       .0    100.0       .0       .0       .0       .0       .0       .0     79.3  
                             ____________________________________________________________________________________________________ 
         Total softwoods          31.7     28.9     40.6     39.0     42.4     37.9     50.1     55.3     57.8     71.6     29.6  
                             ____________________________________________________________________________________________________ 
       Red maple                  21.1     17.7     19.7     26.5     30.1     50.6     63.6     70.9       .0       .0     17.2  
       Sugar maple               100.0    100.0     70.9    100.0       .0    100.0    100.0       .0    100.0       .0     44.8  
       Yellow birch               60.3     67.4    100.0     66.9    100.0       .0       .0       .0       .0       .0     66.9  
       Hickory                    43.4     62.0     52.6    100.0    100.0     70.7    100.0       .0       .0       .0     34.7  
       American beech             68.1     75.7       .0    100.0       .0       .0    100.0       .0       .0       .0     59.6  
       White ash                  59.9     48.2     47.9     44.7     71.8       .0       .0       .0    100.0       .0     31.2  
       Yellow-poplar                .0       .0       .0       .0    100.0       .0       .0       .0       .0       .0    100.0  
       Blackgum                   69.4     61.4     52.9     82.7    100.0    100.0    100.0    100.0       .0       .0     56.1  
       Aspen                      70.7     59.2       .0       .0    100.0    100.0       .0       .0       .0       .0     54.3  
       Black cherry               61.7     74.5    100.0       .0       .0    100.0       .0       .0       .0       .0     61.2  
       White oak                  27.8     29.2     40.0     34.8     41.2     55.6    100.0     72.0    100.0    100.0     25.4  
       Northern red oak           26.8     38.7     32.6     30.8     31.1     28.7     62.1     70.3       .0    100.0     23.9  
       Other white oaks           70.0     93.5     65.3     57.5       .0       .0       .0       .0       .0       .0     62.0  
       Other red oaks             35.3     24.9     25.1     26.6     35.4     31.8     39.6     51.1     70.7       .0     16.3  
       Elm                        80.8    100.0    100.0       .0    100.0       .0       .0       .0       .0       .0     62.1  
       Other hardwoods            36.6     31.9     57.2     56.0     50.6     70.2    100.0       .0       .0       .0     31.0  
                             ____________________________________________________________________________________________________ 
         Total hardwoods          13.8     12.4     13.4     14.6     17.0     18.6     26.8     34.5     44.8     72.2     11.3  
                             ____________________________________________________________________________________________________ 
       Total, all species         13.1     11.8     13.4     13.7     17.5     17.4     23.8     33.2     36.6     51.7     11.4  
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