5
400 350 300 23 23 23 25 250 200 150 19 166 212 211 233 227 100 50 78 98 96 103 121 0 1 2 3 4 5 (H2 H7) (H8 H12) (H13 H17) (H18 H22) (H23 H27) 565 938 981 918 859 6
1800 1600 1400 1200 1000 800 600 400 28 39 24 22 1313 1295 1138 923 41 1369 200 0 94 130 146 160 164 1 2 3 4 5 (H3 H7) (H8 H12) (H13 H17) (H18 H22) (H23 H27) 599 890 930 902 863 7
4000 3500 3000 2500 2000 1500 1000 734 676 572 444 2399 2504 2576 2173 500 0 160 205 218 226 1 2 3 4 (H3 H7) (H8 H12) (H13 H17) (H18 H27) 926 1644 1926 1375 8
400 350 300 250 200 150 100 17 20 14 223 241 241 18 273 50 0 59 64 63 68 1 (H3 H7) 2 (H8 H12) 3 (H13 H17) 4 (H18 H27) 9
140 120 100 13 15 15 12 80 60 40 70 70 75 86 20 16 20 23 24 0 1 2 3 4 (H3 H7) (H8 H12) (H13 H17) (H18 H27) 545 831 874 775 10
12000 10000 113 115 99 8000 85 6000 4000 7794 9281 9769 9214 2000 0 180 210 222 214 1 2 3 4 (H3 H7) (H8 H12) (H13 H17) (H18 H27) 535 798 849 783 11
3 % 45 40 35 30 25 20 15 10 5 0 1 (H2 H7) 2 (H8 H12) 3 (H13 H17) 4 (H18 H22) 5 (H23 H27) 565 938 981 918 859 12
1 2 3 4 5 176 3119 14121 18123 19121 (%) 1.3 2.5 11.6 14.6 15.7 1565 11938 40981 47918 59859 (%) 0.2 1.2 4.1 5.1 6.9 (H2H7) 2 (H8H12) 3 (H13H17) 4 (H18H22) 5 (H23H27) 13
3 % 80 70 60 50 40 30 20 10 0 1 (H3 H7) 2 (H8 H12) 3 (H13 H17) 4 (H18 H27) 926 1644 1926 1375 3RL 14
1 2 3 4 3278 59119 67121 68122 (%) 41 49.6 55.4 55.7 112926 2331644 3641926 3071375 (%) 12.1 14.2 18.9 22.3 (H3H7) 2 (H8H12) 3 (H13H17) 4 (H18H27) 15
0 10 20 30 40 50 60 70 80 90 100 1 (H3 H7) 2 (H8 H12) 3 (H13 H17) 4 (H18 H27) % 16 <> H7.3
1 2 3 4 4781 68118 69122 65123 (%) 58.0 57.6 56.6 52.8 (H3H7) 2 (H8H12) 3 (H13H17) 4 (H18H27) 17
(EI) % 100 90 80 70 60 50 40 30 20 10 0 09 1039 4069 7099 100 0.2 0.1 0.0 0.1 3.0 2.6 1.5 2.7 16.4 21.3 27.2 65.6 14.8 1 (H3 H7) 67.7 66.2 35.3 61.1 8.3 5.1 0.8 2 3 4 (H8 H12) (H13 H17) (H18 H27) 18
(H3H7) 2 (H8H12) 3 (H13H17) 4 (H18H27) 19
250 8 9 8 200 8 150 6 156 163 156 141 100 105 300 250 10 11 10 200 150 177 190 189 100 50 0 35 44 45 52 54 1 (H5 H7) 2 (H8 H12) 3 (H13 H17) 4 (H18 H22) 5 (H23 H27) 50 0 52 59 60 3 (H13 H17) 4 (H18 H22) 5 (H23 H27) 20
2015 1 21
22
1km 18 12 km % ha 23
2-2 2-2 2-1 H22H23 H16H21 H14H19 24
H16H21 H16H21 H16H21 25
H14H19 26
H16H21 27
026km2-22-1 06km2-2 715km2-2 1626km2-1 28
H16H21 0.5m0.5m 29
2-1 H13H24 2-2 2-2 H14H2101kmH22H23 H13H23 H13H23 1 4 2 30
H22H27 H26 H26430 31
S51 S52 S53 S54 S55 S56 S57 S58 S59 S60 S61 S62 S63 H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18 H19 H20 H21 H22 H23 H24 H25 7% H13H25) 25%H13H25) 50 茨 芦 芦 32
遡 H5 3570.5km64.1 5574.3km H14 3866.0km69.4 H21 4644.4km83.3 H26 4846.2km86.9 0 1000 2000 3000 4000 5000 6000 km 遡 30cm 遡 33
34
1. 2. 3. 4. 5. 6. 7. 樋 8. 35
% 100 90 80 70 60 50 40 30 20 10 0 95.9 4.1 79.0 21.0 88.2 11.8 36
0 20 40 60 80 100 0 20 40 60 80 100 0 20 40 60 80 100 37 () () ()
100 90 80 38.1 34.2 33.3 30.5 25.8 % 70 60 50 40 30 9.6 15.9 35.4 30.8 9.7 30.5 7.8 10.5 34.7 35.8 20 10 17.0 19.1 26.4 27.0 27.8 0 1 (H3 H7) 2 (H8 H12) 3 (H13 H17) 4 (H18 H22) 5 (H23 H27) 38
% 100 90 80 70 60 50 40 30 20 10 0 37.7 34.1 38.5 32.1 32.9 32.5 4.4 9.9 1.9 10.2 11.8 12.7 45.7 40.5 39.1 53.9 38.0 47.9 17.5 19.5 18.2 2.6 7.6 10.8 S51 H6 H11 H17 H22 H27 39
100 90 80 70 60 50 40 93.9% 89.1% 79.1% 55.6% 30 20 10 0 S49 51 53 55 57 59 61 63 H2 4 6 8 10 12 14 16 18 20 22 24 26 40
41
H12H21 H5H22 H5H22H26 H12H21 67m 181 261 42
43
H26 17,480 H15 H5 44
4000 3500 152 157 159 160 159 159 157 155 3000 2500 2000 1500 1000 500 0 536 555 560 553 541 536 530 523 124 110 111 476 452 463 80 1061 1071 1075 1062 1067 1075 1067 1055 343 995 979 966 168 168 173 175 173 178 178 179 848 140 335 350 353 364 375 378 370 369 130 130 248 248 275 106 325 323 315 315 320 328 328 328 188 284 286 301 241 243 243 244 248 247 246 246 224 217 217 226 172 182 185 183 193 195 195 192 199 144 146 152 94 283 380 391 409 470 483 483 481 486 484 482 473 2002 2004 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 45
H8 n=2,143 4,629 H28 n=2,000 4,158 H8 H28 0 10 20 30 40 50 60 (%) 46
H8 n=2,143 4,136 H28 n=2,000 3,973 H8 H28 0 20 40 60 80 (%) 47
48
2 49
50
30 51
52
53
54
12291 7281018 23 28 1619 55
56
57
A 10281018 B 1028824 58
59
60
61
62
63
64
65
66
67
68
遡 69
70
逢 71
樋 72
H21.7 H27.7 2 73
H21.7 H27.7 74
75