Table 2 Mean shrub layer (>1.4 m tall and ≤10 cm dbh) density and cover by treatment and year, Green River Game Land, Polk County, North Carolina, USA.

Pretreatment

C

1 863

66.5

B

1 559

40.0

M

1 433

76.8

MB

1 596

49.7

Year 1 (1 growing season after first burn and mechanical treatments)

C

1 919 c¹

94.4 c

B

664 ab

39.1 b

M

447 a

8.0 a

MB

758 b

7.1 a

Year 3

C

1 983 b

86.6 c

B

1 514 ab

20.5 b

M

1 025 a

12.8 a

MB

4 246 c

7.2 a

Year 5 (1 growing season after second burn)

C

1 717 b

71.0 b

B

850 a

18.1 a

M

1 210 a

22.1 a

MB

2 435 c

2.3 a

Year 9

C

2 082 a

66.6

B

3 376 b

23.6

M

1 902 a

42.3

MB

7 781 c

35.4

Year 10 (1 growing season after third burn and second mechanical treatments)

C

2 018 c

73.1 b

B

309 a

8.7 a

M

284 a

6.5 a

MB

1 077 b

1.4 a

Year 11

C

2 020 ab

72.9 b

B

2 517 b

13.3 a

M

716 a

6.2 a

MB

8 588 c

18.4 a

Year 12

C

1 991 ab

95.8 b

B

3 300 b

17.2 a

M

1 042 a

10.0 a

MB

10 169 c

30.7 a