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Large Woody Debris


Charlieh
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Here are a few pics from last Friday carrying out large woody debris work on one of the local rivers, the idea behind this is several fold, historically environment agency and NRA used to remove a lot of the woody material from rivers, it is now recognized this was the wrong approach and in many cases has actually made flooding issues worse, these rivers are also devoid of cover for fish from predators and also there is little habitat for invertebrates, so we try to create habitat that provides cover for fish, crayfish and inverts, and in this example the aim is also to help scour the river bed to create pools in what is essentially a man made channel.

597653cfc5b31_Img_7361drivinginrodslr.jpg.cb5b6eaab2fc10c0cacee2a186b11b66.jpg

597653cfc2d90_Img_7332WoodAugerdrillingholesformetalrods.jpg.8fee4cfee024dad2d73f934dee78b1b7.jpg

597653cfc048d_Img_7311PositioningLWD.jpg.961a34dca09bf84487a8e1c70bde6740.jpg

597653cfbccf9_Img_7296Trimming.jpg.d8065e255f9c696579ed6ff2d45f8181.jpg

597653cfb9b00_Img_7286FellingLWD.jpg.36dff1657fb969331d64e7990093c1cb.jpg

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thing is up here all the rivers are so free of obsticals that when they flood they all peak together and make downstream flooding worse, by increasing delays such as this and increasing floodplain resistance, eg wet woodland then urban flooding is reduced, this is where a lot of government funding is heading,

 

on the water rats they will be ok, thats what a large part of my work is conserving, they prefer sluggish water so this kind of dam actual increases habitat suitability

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