pollarding

verb

1. (form-of, gerund, participle, present)present participle and gerund of pollard

   “As well as coppicing, other trees were pollarded, or lopped about 6 ft up the trunk so that the resulting growth was beyond the reach of grazing animals. Pollarding lengthens the life of trees, and the frequently made estimate '1,000 years old' could well be true of some sturdy old trunks.”