THE ASHES : THEIR CHARACTERISTICS AND MANAGEMENT. 27 



Table 7. — Rate of growth of white ash on uplands in central New York. 





A. On moist clay soil.i 



B. On fresh to moist sandy loam.2 



Fast growth. 



Average growth. 



Fast growth. 



Average growth. 



Age. 















Diameter 





Diameter 





Diameter 





Diameter 







breast- 



Height. 



breast- 



Height. 



breast- 



Height. 



breast- 



Height. 





high. 





high. 





high. 





high. 





Years. 



Inches. 



Feet. 



Inches. 



Feet. 



Inches. 



Feet. 



Inches. 



Feet. 



10 



2.1 



25 



1.3 



17 



2.5 



29 



1.3 



17 



15 



3.7 



38 



2.4 



27 



5.5 



42 



3.0 



27 



20 



5.3 



50 



3.5 



36 



8.2 



52 



4.5 



34 



25 



6.7 



59 



4.5 



43 



10.4 



60 



5.9 



41 



30 



8.0 



67 



5.4 



49 



12.2 



67 



7.1 



47 



35 



9.2 



73 



6.2 



55 



13.9 



71 



8.3 



53 



40 



10.2 



77 



6.9 



59 



15.3 



75 



9.4 



57 



45 



11.2 



81 



7.6 



63 



16.6 



78 



10.3 



61 



50 



12.0 



83 



8.3 



66 



17.7 



79 



11.2 



65 



55 



12.9 



85 



8.9 



69 



18.7 



81 



12.2 



68 



60 



13.7 



87 



9.5 



71 



19.6 



81 



13.1 



71 



65 



14.5 



88 



10.1 



73 



20.4 



82 



13.9 



74 



70 



15.2 



89 



10.6 



75 



21.2 



83 



. 14.8 



76 



75 



16.0 



90 



11.2 



77 



22.0 



82 



15.6 



78 



80 



16.7 



92 



11.7 



79 



22.8 



83 



16.5 



81 



85 



17.3 



93 



12.2 



81 











90 



17.9 



94 



12.6 



82 











95 



18.5 



95 



13.1 



83 











100 



19.1 



97 



13.6 



85 



















1 Based on complete analyses of 47 trees, mostly 80 to 100 years old. 



2 Based on complete analyses of 138 trees, mostly 30 to 70 years old. 



The root systems of ash are wide-spreading, surface-feeding, very- 

 fibrous, and fairly deep-going, those of the more tolerant blue and 

 black ashes being especially deep-going and often developing taproots. 

 Green and pumpkin ashes growing in wet sloughs are usually bell- 

 butted. 



The form and volume of ash trees of different species, diameters, 

 and heights are given in Tables 25 to 46 in the Appendix. 



RATE OF GROWTH OF COMMERCIAL SPECIES. 



WHITE ASH. 



Table 7 shows the rate of growth, under favorable natural forest 

 conditions, of second-growth white ash on moist clay upland and on 

 fresh to moist, sandy loam upland in central New York. 



Measurements in central New York on second-growth white ash 

 on well-drained, alluvial bottom land, with a moist sandy loam soil, 

 indicate an average rate of growth approximating that of fast growth 

 on upland, sandy loam in the same locality. 



The growth of white ash on sandy loam soil averages faster at the 

 outset than on the clay, but it is not so sustained. On the clay site 

 white ash is more tolerant, the stand more crowded, and the growth 

 in diameter of the average tree is necessarily somewhat slower; the 

 better quality of the site, however, is indicated by the greater height 

 attained and by the greater per acre yields. In managed stands of 

 white ash on suitable uplands it would be possible to secure an aver- 



