5．雨水流出抑制施設等に関する基準

- 43 - (1) ha (2) ha (3) ( ) (4) (5) (6) (7) (8) (9) (10) (11) (1) ( ) 2 ( ) JPFA-SP-S:2014 ( ) (2) 43 - 44.

- 48 - 【緑被面積一覧表】緑化の種類半径緑被面積備考 4m以上の樹木 2.1m 13.8 ㎡ 2.5m以上 4m未満の樹木 1.6m 8.0 ㎡

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Transcription of 5．雨水流出抑制施設等に関する基準

1 - 43 - (1) ha (2) ha (3) ( ) (4) (5) (6) (7) (8) (9) (10) (11) (1) ( ) 2 ( ) JPFA-SP-S:2014 ( ) (2) 43 - 44 - (3) (4) 3 1.

2 120cm 90cm 1 90cm 150cm 2. 180cm 50 120cm 5% 8% 1% 2% ) 44 - 45 - 3. 4.

3 120cm 90cm 8% 75cm 150cm 5. 6. 7. 1,000 1 45 - 46 - (5) (6) (1) (1) ( )

4 (2) ( ) 1 4 (3) (4) 1 2 5 2 5 4 4 46 - 47 - (1) (2) 2/3 47 - 48 - 4

5 4 1 1 4 / 2/3 48 - 49 - cm 1 0 2 49

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