Sunday, December 3, 2017

Spotted in a field

Does anyone know what causes these mounds.

I was walking in the area around Neuadd reservoirs and I noted that 2 fields were covered in them, but just those 2 fields, the ones either side were "normal" it looks like a tussock of some kind rather than any underlying rock or soil, but I presume some specific grass/moss etc. must be responsible.

Its interesting that the tree has a ring around it so there may be some environmental factor in terms of the tree taking up water or something. Anyway I know we have loads of experts around so I thought I would ask 

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