流域 りゅういき治水 ちすい

ryūikichisui

1. Not river basin management.

1. Was river basin management.

1. River basin flood control

1. River basin management; Flood control in a river basin

1. It is not river basin management.; It's not about controlling rivers.

1. It's not river basin management.; It's not flood control in the basin.

1. Was river basin management.

1. River basin management.

1. Is not watershed management.; Is not river control.

1. Wasn't river basin management.; Wasn't flood control in the basin.

1. Probably flood control.; Probably river basin management.

1. Was not river basin management.; Was not dealing with river control.

1. Wasn't basin management.; Wasn't flood control in the basin.

1. Probably flood control.; Likely river basin management.

1. Was not river basin management.; Was not dealing with river control.

1. If/when dealing with river basin management:; If/when river basin management were done:

1. If/when river basin management…; If/when flood control in the basin…

1. If/when river basin management…; If/when flood control in the basin…