
Figure 6.4a Silviculture : Area of Site Preparation by Treatment, 1975-2009 |
||||
Prescribed burning |
Mechanical |
Chemical |
Other |
|
1975 |
60 915 |
92 448 |
0 |
4 800 |
1976 |
62 259 |
90 132 |
0 |
0 |
1977 |
33 291 |
103 519 |
2 655 |
4 719 |
1978 |
38 707 |
111 377 |
5 306 |
4 017 |
1979 |
53 131 |
124 834 |
4 460 |
2 396 |
1980 |
30 246 |
160 701 |
6 195 |
0 |
1981 |
23 270 |
170 374 |
4 093 |
0 |
1982 |
37 365 |
174 937 |
5 825 |
0 |
1983 |
41 104 |
181 210 |
8 001 |
2 058 |
1984 |
46 657 |
204 191 |
6 217 |
4 793 |
1985 |
53 099 |
223 838 |
16 216 |
12 361 |
1986 |
84 920 |
288 987 |
21 698 |
10 739 |
1987 |
114 815 |
339 631 |
28 989 |
8 836 |
1988 |
77 748 |
318 853 |
27 587 |
17 662 |
1989 |
71 351 |
356 089 |
32 252 |
27 971 |
1990 |
47 511 |
335 094 |
27 172 |
8 628 |
1991 |
51 445 |
342 420 |
27 469 |
19 059 |
1992 |
31 502 |
294 969 |
19 532 |
21 924 |
1993 |
51 071 |
277 608 |
18 601 |
33 432 |
1994 |
46 777 |
265 684 |
15 408 |
37 215 |
1995 |
48 344 |
244 242 |
11 588 |
30 961 |
1996 |
33 411 |
258 083 |
10 582 |
29 296 |
1997 |
16 649 |
268 531 |
14 920 |
37 978 |
1998 |
15 424 |
272 716 |
18 680 |
17 699 |
1999 |
14 517 |
260 721 |
25 114 |
13 906 |
2000 |
12 240 |
266 026 |
17 479 |
33 938 |
2001 |
9 179 |
234 380 |
12 167 |
30 174 |
2002 |
6 723 |
212 618 |
9 900 |
19 974 |
2003 |
9 914 |
216 618 |
9 919 |
25 200 |
2004 |
7 398 |
205 301 |
11 789 |
20 638 |
2005 |
5 893 |
220 341 |
15 649 |
17 645 |
2006 |
6 721 |
214 523 |
14 388 |
18 702 |
2007 |
9 199 |
221 039 |
11 115 |
22 001 |
2008 |
10 192 |
207 222 |
8 415 |
7 970 |
2009 |
4 541 |
172 686 |
8 406 |
10 408 |
| Source: National Forestry Database. | ||||
Modified 2012-01-26