Do the Japanese really love nature more than all other people ?

[Maciamo]

Thank you for pointing out that you have no idea for yourself.

No need to attack me personally.

As I stated, you personally do not know and are merely quoting someone else that as far as you know is not entirely correct. I believe that if you were to check his references it would indicate that he is talking about where rivers pass through major metropolitan areas.
If a river were indeed bordered completely by concrete, then it would be man made, and not truly a river then would it?

If you want to prove Kerr wrong, why don't you give me examples of rivers in Japan that have not been "concreted" ?

[Mike Cash]

If you want to prove Kerr wrong, why don't you give me examples of rivers in Japan that have not been "concreted" ?

Just right here around me locally, how about 荒川, 利根川 and 渡良瀬川?

They do have limited stretches with concrete reinforcements on the banks, typically in urban areas as has been pointed out already.

Even in areas without the concrete reinforced banks, though, unsightly earthen levees are the norm for large stretches of river. These are an absolute necessity, though, for flood control. I've seen vintage film footage of what happened right here in Kiryu soon after the end of the war, prior to any flood control measures being put into effect. It was horrible, to say the least.

I like watching documentaries about nature, and in my 4 years in Japan I almost cannot remember seeing such documentaries on the 7 main (free) channels in Tokyo (NHK, NHK2, Nihon TV, TBS, Fuji TV, Asahi TV, Tokyo TV).

Well, maybe some day you'll be able to come here for something other than such a short visit.

I absolutely hate Japanese television and in most cases would rather take an *** whipping than even be in the same room with it....but even I've seen nature documentaries. (Technically, NHK isn't free, by the way).