Site Index Curves

Loblolly Pine - Lower West Gulf Coastal Plain of eastern Texas, Louisiana, Arkansas, and Alabama

Loblolly Pine - Lower West Gulf Coastal Plain of eastern Texas, Louisiana, Arkansas, and Alabama
Total Age (Years)
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
Total Height (Feet)
0
20
40
60
80
100
120
140
Site Index 25
Site Index 30
Site Index 35
Site Index 40
Site Index 45
Site Index 50
Site Index 55
Site Index 60
Site Index 65
Site Index 70
Site Index 75
Site Index 80
Site Index 85


Loblolly pine plantations (Popham et al. 1979)
Lower West Gulf Coastal Plain of eastern Texas, Louisiana, Arkansas, and Alabama
293 permanent growth plots on cutover sites, number of dominant and codominant trees not given
Remeasurements of total height and total age, anamorphic, regression equations
Site index is total height at 25 years total age
Convert d.b.h, ageto total age by adding years according to site
index (BH = 0.0):

SI <50 >50
Years 4 3