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1
1
1.1
30
1995
65ha 0.65k
15 1)
8,000ha 80 k
2,300ha 23 k
1-12)
100km2 100
2
1-1
1
3
1-1
1.2
1.2.1
3) 4)
7)
1-2
1-3
5) 6)
4
1-4 1-4
1-2
1-3
1.2.2
101 101
1-4
1-4
5
1-4
1-5
2
1-5(a)
1-5(b)
1-5(a)
1-4
(a) (b)
1-5
=0.00247
=0.00027
100
90
80
70
60
50
40
30
20
10
0 10 20 30 40 50 60 70 80 90 100
6
1.2.3
500 250
1-6 ((a)-1)
1-6 (b)-1
1-6 (a)-2
1-6 (b)-2
1-6
7
10
10
1-7
(a)
(b) 3 1-7
(a)-1 (b)-1 (a)-2 (b)-2
1-8
8)
8
1-7
1-8
9
1.2.4
1.3
1-9
1-9 1-10
1-9
10
1-10
1.4
9) CVF Covering Volume
Fraction 10)
1-11
1-12
11
1-13
3
12
1-11 2)
1-12 1-11
1000m0m
1-12
0 – 0.1 0.1 – 0.2 0.2 – 0.3 0.3 – 0.5 0.5 – 0.87
0 – 0.1 0.1 – 0.2 0.2 – 0.3 0.3 – 0.5 0.5 – 0.87
図 1-12
焼失確率 0 – 0.1 0.1 – 0.2 0.2 – 0.3 0.3 – 0.5 0.5 – 0.87
13
1-13 2)
1-11
1.5
焼損棟数 0 – 300 300 – 600 600 – 900 900 – 1200 1200 – 1500 1500－18001800－21002100－24002400－27002700－30003000－33003300－36003600－39003900－42004200－4571.51
14
1)
http://www.mlit.go.jp/kisha/kisha03/07/070711_.html
1997
1982
no.22 1991
11 1989
No.534 2001
2003
1999