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  David Cox February 19, 2011 at 10:36pm

  Some trees are more resistant to salt than others, I've noticed roadside Oaks and Ash struggled last year, some with obvious burning to the leaves, one small coppice ash im sure died as a result, however Italian Alder (cordata) and Sycamore seem to be quite happy and generally more tollerating.

   

  My understanding is, that as transpiration exceeds evaporation on most soils in our country, the salt is leached out over time into watercourses and eventually the sea, so Its unlikely to cause a cumulative effect, apart from some urban environments where access to the subsoil and water tables is restricted.
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  Fenlandphil February 20, 2011 at 9:03am

  Can't barriers be put in the ground roadside to eases the problem?
• PRO

  Will - WB Design & Construction February 20, 2011 at 11:32am

  Switching to the use of a liquid system would reduce the problems as it is more accurate so less salt ends up where it shouldnt and also less salt is used. However it is not suitable for all aplications.
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  Chris Auld February 20, 2011 at 12:03pm

  Do you realise how much that would cost? Especially in these hard times, the government isn't going to want to spend money on something like that.
  
  Fenlandphil said:

  Can't barriers be put in the ground roadside to eases the problem?
  • PRO

    Gary RK > Chris Auld February 20, 2011 at 1:15pm

    Thats the problem as always - costs.
    
    I worry at amount of salt laid down this year. I know our tonnage was high multiplied by all the contractors=a lot!.
    
    The problem is everyone wants a cost effective, health&safety approved solution.
    
    Perhaps root barriers , effective surface drains etc are some of the future
     answers.
    
    What do other countries do - select more resistant trees?
    
    Chris Auld said:

    Do you realise how much that would cost? Especially in these hard times, the government isn't going to want to spend money on something like that.
    
    Fenlandphil said:

    Can't barriers be put in the ground roadside to eases the problem?