区分 | 自然海岸 | 半自然 | ||||||||||||||
海岸(汀線)に浜が発達している | 海岸(汀線)が浜に発達していない(14) | 小計 A | 海岸(汀線)が浜に発達している | |||||||||||||
泥浜海岸 (11) |
砂質(砂浜) 海岸 (12) |
岩石(磯浜) 海岸 (13) |
泥浜海岸 (21) |
砂質(砂浜) 海岸 (22) |
岩石(磯浜) 海岸 (23) |
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延長 | % | 延長 | % | 延長 | % | 延長 | % | 延長 | % | 延長 | % | 延長 | % | 延長 | % | |
胆振 107 | 0 | 0 | 57.77 | 58.0 | 12.68 | 12.7 | 29.15 | 29.3 | 99.60 | 45.3 | 0 | 0 | 32.19 | 90.1 | 1.37 | 3.8 |
0 | 26.2 | 5.8 | 13.2 | 14.6 | 0.6 | |||||||||||
石狩 111 | 0 | 0 | 24.95 | 41.8 | 13.88 | 23.3 | 20.86 | 34.9 | 59.69 | 74.9 | 0 | 0 | 1.63 | 33.7 | 1.74 | 36.0 |
0 | 31.3 | 17.4 | 26.2 | 2.0 | 2.2 | |||||||||||
秋田 202 | 0 | 0 | 83.98 | 54.3 | 70.74 | 45.7 | 0 | 0 | 154.72 | 59.7 | 0 | 0 | 38.60 | 56.0 | 29.03 | 42.1 |
0 | 32.4 | 27.3 | 14.9 | 11.2 | ||||||||||||
富山湾 206 | 0 | 0 | 11.13 | 69.9 | 0.35 | 2.2 | 4.44 | 27.9 | 15.92 | 14.6 | 0 | 0 | 19.16 | 70.1 | 4.12 | 16.2 |
0 | 10.2 | 0.3 | 4.1 | 17.6 | 4.1 | |||||||||||
陸奥湾 301 | 0 | 0 | 50.97 | 50.5 | 34.96 | 34.6 | 15.05 | 14.9 | 100.98 | 37.4 | 0 | 0 | 35.09 | 73.6 | 12.60 | 26.4 |
0 | 18.9 | 13.0 | 5.6 | 13.0 | 4.7 | |||||||||||
三陸海岸 304 | 0 | 0.9 | 104.41 | 28.0 | 36.85 | 6.4 | 438.00 | 75.6 | 579.26 | 86.8 | 0 | 0 | 5.24 | 75.8 | 1.67 | 24.2 |
0.3 | 15.6 | 5.5 | 65.6 | 0.8 | 0.3 | |||||||||||
仙台湾 306 | 5.31 | 1.5 | 57.59 | 20.9 | 0 | 0 | 212.79 | 77.2 | 275.69 | 66.7 | 0.35 | 1.2 | 27.89 | 97.8 | 0 | 0 |
1.3 | 13.9 | 51.5 | 0.1 | 6.7 | ||||||||||||
若狭湾 401 | 1.93 | 0.0 | 57.22 | 13.2 | 79.95 | 18.4 | 294.48 | 67.9 | 433.58 | 59.8 | 0.58 | 0.7 | 50.20 | 60.5 | 20.99 | 25.3 |
0.0 | 7.9 | 11.0 | 40.6 | 0.1 | 6.9 | 2.9 | ||||||||||
兵庫 402 | 0 | 0.9 | 4.49 | 4.4 | 10.61 | 10.3 | 88.00 | 85.4 | 103.10 | 86.9 | 0 | 0.0 | 3.80 | 40.8 | 4.87 | 52.3 |
0.1 | 3.8 | 8.9 | 74.2 | 0.0 | 3.2 | 4.1 | ||||||||||
東京湾 502 | 0.73 | 0.5 | 45.25 | 53.8 | 33.58 | 39.9 | 4.57 | 5.4 | 84.13 | 10.9 | 0.98 | 5.3 | 14.65 | 78.6 | 2.13 | 11.5 |
0.7 | 5.8 | 4.3 | 0.6 | 0.1 | 1.9 | 0.3 | ||||||||||
相模湾 503 | 1.08 | 1.0 | 21.65 | 29.1 | 35.69 | 48.0 | 15.93 | 21.4 | 74.35 | 49.6 | 0.13 | 0.4 | 26.36 | 88.1 | 1.41 | 4.7 |
0.0 | 14.5 | 23.8 | 10.6 | 0.1 | 17.6 | 0.9 | ||||||||||
遠州灘 506 | 0 | 0.0 | 71.19 | 98.9 | 0 | 0.0 | 0.78 | 1.1 | 71.97 | 60.9 | 0 | 0.0 | 37.92 | 86.3 | 6.00 | 13.7 |
0.0 | 60.3 | 0.0 | 0.7 | 0.0 | 32.1 | 5.1 | ||||||||||
伊勢湾 507 | 0 | 0.0 | 20.78 | 22.5 | 5.52 | 6.0 | 66.26 | 71.6 | 92.56 | 21.0 | 0 | 0.0 | 43.23 | 66.2 | 5.81 | 8.9 |
0.0 | 4.7 | 1.3 | 15.0 | 0.0 | 9.8 | 1.3 | ||||||||||
三河湾 508 | 0 | 0.0 | 26.29 | 16.9 | 29.22 | 18.8 | 99.97 | 64.3 | 155.48 | 26.5 | 5.96 | 6.7 | 53.09 | 59.5 | 11.49 | 12.9 |
0.0 | 4.5 | 5.0 | 17.1 | 1.0 | 9.1 | 2.0 | ||||||||||
土佐湾 603 | 0.66 | 0.1 | 84.57 | 17.4 | 115.07 | 23.7 | 285.12 | 58.7 | 485.42 | 56.2 | 0.31 | 0.2 | 126.98 | 63.0 | 49.86 | 24.7 |
0.1 | 9.8 | 13.3 | 33.0 | 0.0 | 14.7 | 5.8 | ||||||||||
  |   |   |   | |||||||||||||
周防灘西 701 | 0.30 | 0.5 | 32.46 | 59.7 | 12.06 | 22.2 | 9.51 | 17.5 | 54.33 | 18.4 | 0.43 | 1.5 | 18.61 | 66.5 | 7.68 | 23.5 |
0.1 | 11.0 | 4.1 | 3.2 | 0.1 | 6.3 | 2.6 | ||||||||||
周防灘東 702 | 0 | 0.0 | 45.16 | 21.3 | 29.39 | 13.8 | 137.86 | 64.9 | 212.41 | 47.4 | 0 | 0.0 | 18.01 | 64.4 | 8.67 | 31.0 |
0.0 | 10.1 | 6.6 | 30.7 | 0.0 | 4.0 | 1.9 | ||||||||||
伊予灘西 703 | 0 | 0.0 | 15.46 | 25.8 | 19.69 | 32.9 | 24.73 | 41.3 | 59.88 | 70.0 | 0 | 0.0 | 9.15 | 84.0 | 1.74 | 16.0 |
0.0 | 18.1 | 23.0 | 28.9 | 0.0 | 10.7 | 2.0 | ||||||||||
別府湾 704 | 0 | 0.0 | 5.62 | 20.1 | 8.07 | 28.9 | 14.25 | 51.0 | 27.94 | 24.2 | 0 | 0.0 | 6.37 | 56.1 | 4.99 | 43.9 |
0.0 | 4.9 | 7.0 | 12.4 | 0.0 | 5.5 | 4.3 | ||||||||||
豊後水道 705 | 0 | 0.0 | 28.45 | 7.6 | 87.64 | 23.3 | 259.77 | 69.1 | 375.86 | 48.6 | 0 | 0.0 | 38.51 | 36.9 | 35.16 | 33.7 |
0.0 | 3.7 | 11.3 | 33.6 | 0.0 | 5.0 | 4.5 | ||||||||||
伊予灘東 706 | 5.14 | 2.5 | 43.35 | 21.0 | 62.12 | 30.1 | 96.11 | 46.5 | 206.72 | 53.0 | 5.90 | 7.5 | 38.57 | 49.3 | 29.75 | 38.0 |
1.3 | 11.1 | 15.9 | 24.6 | 1.5 | 9.9 | 7.6 | ||||||||||
広島湾 707 | 1.16 | 0.5 | 72.84 | 32.9 | 32.34 | 14.6 | 114.73 | 51.9 | 221.07 | 40.7 | 2.87 | 8.2 | 25.77 | 73.2 | 5.18 | 14.7 |
0.2 | 13.4 | 6.0 | 21.1 | 0.5 | 4.7 | 1.0 | ||||||||||
安芸湾 708 | 9.23 | 3.8 | 43.17 | 17.7 | 124.06 | 50.9 | 67.34 | 27.6 | 243.80 | 40.8 | 6.47 | 5.0 | 94.58 | 73.8 | 22.62 | 17.6 |
1.5 | 7.2 | 20.8 | 11.3 | 1.1 | 15.8 | 3.8 | ||||||||||
備後灘 709 | 0 | 0.0 | 31.90 | 15.7 | 114.81 | 56.4 | 56.83 | 27.9 | 203.54 | 35.5 | 3.53 | 3.4 | 81.69 | 78.4 | 9.23 | 8.9 |
0.0 | 5.6 | 20.0 | 9.9 | 0.6 | 14.3 | 1.6 | ||||||||||
逐灘 710 | 0 | 0.0 | 13.13 | 15.7 | 39.32 | 46.9 | 31.30 | 37.4 | 83.75 | 29.9 | 1.81 | 2.3 | 58.10 | 75.3 | 1.85 | 2.4 |
0.0 | 4.7 | 14.0 | 11.2 | 0.6 | 20.7 | 0.7 | ||||||||||
備讃瀬戸西 711 | 0 | 0.0 | 31.15 | 22.4 | 63.78 | 45.8 | 44.18 | 31.8 | 139.11 | 39.0 | 1.36 | 2.2 | 39.72 | 63.1 | 7.31 | 11.6 |
0.0 | 8.7 | 17.9 | 12.4 | 0.4 | 11.1 | 2.1 | ||||||||||
備讃瀬戸東 712 | 0.42 | 0.2 | 74.20 | 33.4 | 53.17 | 23.9 | 94.38 | 42.5 | 222.17 | 52.3 | 5.79 | 8.6 | 48.54 | 72.2 | 7.56 | 11.2 |
0.1 | 17.5 | 12.5 | 22.2 | 1.4 | 11.4 | 1.8 | ||||||||||
播磨讃北 713 | 1.20 | 0.5 | 52.23 | 22.9 | 132.20 | 57.9 | 42.77 | 18.7 | 228 | 45.7 | 5.04 | 6.6 | 34.60 | 45.1 | 23.44 | 30.5 |
0.2 | 10.4 | 26.4 | 8.6 | 1.0 | 6.9 | 4.7 | ||||||||||
播磨灘南 714 | 0 | 0.0 | 11.69 | 16.6 | 7.28 | 10.3 | 51.56 | 79.1 | 70.53 | 40.6 | 0 | 0.0 | 23.41 | 75.2 | 4.81 | 15.4 |
0.0 | 6.7 | 4.2 | 23.7 | 0.0 | 13.5 | 2.8 | ||||||||||
大阪湾北 715 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0 | 0.0 | 7.85 | 66.4 | 0 | 0.0 | |
0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.6 | 0.0 | ||||||||||
大阪湾南 716 | 0 | 0.0 | 7.80 | 42.9 | 6.57 | 36.1 | 3.18 | 21.0 | 18.18 | 17.0 | 0 | 0.0 | 36.56 | 79.5 | 4.92 | 10.7 |
0.0 | 7.3 | 6.2 | 3.6 | 0.0 | 34.2 | 4.6 |