THE ASHES : THEIR CHARACTERISTICS AND MANAGEMENT. 



31 



In this region the growth falls off rapidly after 25 years, and is 

 not sufficiently sustained to make management profitable. On the 

 better classes of sites, however, with moist soils, especially on bottom 

 land, green ash has a fair chance of profitable growth in the Plains 

 States (Tables 47 to 49) . On bottom lands in western Kansas and 

 Nebraska, in young natural stands, green ash has been found to 

 average an inch in diameter growth in three to four years, and in 

 planted stands it grows an inch in diameter every two to three years. 

 In planted stands on uplands in the same region green ash takes five 

 to six years to grow an inch in diameter. 



BLACK ASH. 



Table 14 shows the rate of growth of black ash in original all-aged 

 selection forests on typical wet land sites in Michigan and Maine. 



Table 14. — Rate of growth of black ash in original all-aged selection forests on wet sites. 





A 



. In northern Michigan. i 







B. 



rn Maine 



.- 





Diameter breasthigh. 



Height. 



Diameter breasthigh. 



Height. 



Age. 





















Maxi- 



Aver- 



Fast 



Aver- 



Fast 



Maxi- 



Aver- 



Fast 



Aver- 



Fast 





mum 

 growth. 



age 

 growth . 



growth . 



growth . 



growth . 



mum 



growth. 



age 

 growth . 



growth . 



age 

 growth . 



growth . 



Years. 



Inches. 



Inches. 



Inches. 



Feet. 



Feet. 



Inches. 



Inches. 



Inches. 



Feet. 



Feet. 



10 



1.0 



0.4 



0.7 



9 



12 



1.8 



0.4 



1.1 



8 



15 



20 



2.4 



1.0 



1.7 



17 



24 



4.4 



1.1 



2.7 



15 



28 



30 



3.9 



1.7 



2.7 



26 



34 



7.2 



1.9 



4.4 



22 



38 



40 



5.5 



2.5 



3.9 



34 



44 



9.9 



2.7 



6.3 



28 



45 



50 



7.3 



3.2 



5.2 



40 



52 



12.2 



3.5 



8.1 



34 



50 



60 



9.2 



4.1 



6.5 



47 



58 



14.1 



4.4 



9.9 



38 



54 



70 



11.1 



4.9 



7.9 



52 



63 



15.7 



5.2 



11.5 



41 



58 



80 



12.9 



5.8 



9.3 



57 



67 



17.1 



6.1 



13.1 



44 



60 



90 



14.6 



6.7 



10.7 



61 



70 



18.5 



7.0 



14.5 



47 



63 



100 



16.1 



7.6 



12.1 



64 



73 



19.8 



7.9 



15.7 



50 



65 



110 



17.6 



8.6 



13.5 



68 



76 



21.0 



8.9 



16.9 



52 



66 



120 

 130 

 140 

 150 

 160 

 170 

 180 

 190 

 200 

 210 

 220 

 230 

 240 

 250 



18.9 

 20.3 

 21.6 

 22.9 

 24.2 



9.5 

 10.4 

 11.4 

 12.4 

 13.3 

 14.2 

 15.1 

 16.0 

 16.8 

 17.6 

 18.5 

 19.3 

 20.1 

 20.9 



14.7 

 15.9 

 17.1 

 18.2 

 19.3 

 20.4 

 21.5 

 22.5 

 23.5 

 24.5 



70 



72 

 74 

 76 

 78 

 79 

 81 

 82 

 83 

 84 

 86 

 87 

 88 

 89 



78 

 80 

 82 

 83 

 85 

 86 

 87 

 88 

 89 

 90 





9.8 

 10.7 

 11.6 

 12.6 

 13.5 

 14.5 

 15.5 

 16.5 

 17.6 

 18.7 

 19.7 

 20.9 

 22.1 

 23.3 



18.1 

 19.3 

 20.5 



54 

 56 

 57 

 60 

 61 

 63 

 64 

 66 

 67 

 69 

 70 

 72 

 73 

 75 



68 

 70 

 71 



















































260 

 270 

 280 

 290 



300 





21.7 

 22.5 

 23.3 

 24.1 

 25.0 





90 

 91 

 92 

 92 

 93 







24.6 





76 



































































i Based on 90 trees 79 to 292 years old. 



2 Based on 45 trees 85 to 242 years old. 



This growth is much slower than can be expected of second growth 

 on land with fair drainage. Black ash planted on uplands in Illinois 

 has been found to grow as fast or faster than white ash. 



