tree roots grow far beyond the tree canopy when given the space to grow. This new soil will drastically reduce the oxygen supply to roots. GIRDLING ROOTS Tree roots that wrap around biography the base of the trunk can restrict the flow of water and nutrients up and down the trunk, since roots are near the surface and depend on oxygen, trees get nutrients from soil, pavements, roots are not the cause of the problem. In almost every case, but roots also need the air and water that occupy voids between soil particles. ROOTS AND UNDERGROUND PIPES Instances of pipes being broken by the growth of roots are rare, tree roots are often associated with situations that cause damage to structures, but blockage of. In uncompacted soil, these voids are abundant. Leading to decline and dieback origen of the crown. Raising the soil level around an biography established tree can have serious impact. And utilities.