THE ASHES I THEIR CHARACTERISTICS AND MANAGEMENT. 
33 
Table 15 is the result of tabulating the yields per acre of 63 sample 
plots in comparatively pure, even-aged stands of ash, half in natural 
and half in planted stands, from 5 to 75 years old, and drawing three 
curves to represent high but not the highest '(Quality I), average 
(Quality II), and low (Quality III) yields. The stands represented 
were mostly on average -quality ash sites. Practically all were 
un thinned stands, and the yields may be considered as representing 
conservatively the possibilities of well-stocked ash stands under 
management on fair to good sites. 
Table 15. — Yield of pure, even-aged, well-stocked stands of ash on different quality sites. 
QUALITY I. 
Yield per acre 
Number 
of trees 
Average 
diameter 
Age. 
per acre 
breasthigh 
Scribner Decimal C 
3" and 
over. 
3" and 
over. 
Cords. 
7" and over. 
3" and over. 
Years. 
Number. 
Inches. 
Board feet. 
Cubic feet. 
20 
427 
5.4 
2,000 
2,200 
24.4 
25 
391 
6.5 
4,200 
3,100 
34.4 
30 
375 
7.5 
6,500 
3,900 
43.3 
35 
361 
8.3 
9,000 
4,600 
51.1 
40 
341 
9.1 
11.700 
5,250 
58.3 
45 
322 
9.9 
14. 700 
5,830 
64.8 
50 
288 
10.5 
18,000 
6,350 
70.6 
55 
251 
11.2 
21, 7C0 
6,800 
75.6 
60 
224 
11.8 
25, 700 
7.220 
80.2 
65 
203 
12.4 
29,500 
7,600 J 
84.4 
70 
188 
13.0 
32,800 
7,950 
88.3 
75 
176 
13.5 
35, 600 
8,280 
92.0 
80 
166 
14.0 
38,000 
8.600 
95.6 
QUALITY II. 
20 
25 
482 
435 
4.0 
5.0 
850 
1,680 
9.4 
18.7 
1,000 
30 
415 
5.8 
2,200 
2,400 
26.7 
35 
393 
6.6 
3,600 
3,050 
33.9 
40 
378 
7.4 
5,300 
3,630 
40.3 
45 
367 
8.0 
7,500 
4,130 
45.9 
50 
361 
8.7 
9,900 
4,590 
51.0 
55 
350 
9.3 
12, 700 
5,000 
55.6 
60 
340 
9.8 
15,700 
5,380 
59.8 
65 
326 
10.4 
19,100 
5,720 
6,6.8 
70 
309 
10.9 
22.600 
6,010 
66.8 
75 
288 
11.5 
25,500 
6,270 
69.7 
80 
268 
12.0 
28. 000 
6,520 
72.4 
QUALITY III. 
25 
469 
3.5 
470 
5.2 
30 
35 
456 
452 
4.2 
4.9 
970 
1,470 
10.8 
16.3 
300 
40 
426 
5.5 
1,300 
1,950 
21.7 
45 
410 
6.2 
2,400 
2,400 
26.7 
50 
402 
6.8 
3,900 
2,790 
31.0 
55 
392 
7.3 
5,600 
3,150 
35.0 
60 
382 
7.9 
7,700 
3,470 
38.6 
65 
377 
8.4 
10,200 
3,760 
41.8 
70 
371 
8.9 
12,900 
4,020 
44.7 
75 
365 
9.3 
15, 700 
4,260 
47.3 
80 
359 
9.8 
IS, 000 
4,490 
49.9 
i Based on 18 plots, Quality I, 30 plots, Quality II; 14 plots, 
Quality III, with a total area of 16.9 acres. 
6023 ° —Bull. 299—15- 
