Can a tree whose roots have died due to whatever reason, let's say due to ringing, still draw water up? I personally doubt so but I believe that since all forms of conducting water up a plant requires only passive actions, such as root pressure or capillary action, and that having a dead tree root will not result in leaves dying, hence transpiration can still take place. Is it hence derived that a tree is able to continue taking up water even if their roots died, or, does it depend on the woodiness of the tree?

Edit: I still got no answer😩

  • $\begingroup$ It can draw a littly bit of water up, but without leaves the evaporation rate is minimal. im guessing that an live oak drinks a cubic meter every day in the summer, and a dead oak will evaporate 1 liter or so, wood becomes just a sponge. $\endgroup$ – com.prehensible Sep 26 '17 at 13:24
  • $\begingroup$ I mean like since its just the roots that died, the leaves havent died yet so transpiration can still take place? $\endgroup$ – user35897 Sep 26 '17 at 16:09
  • $\begingroup$ Root pressure and capillary action are only able to raise water against gravity about 8 feet. You need transpiration to pull the water molecules the rest of the distance up the tree to the canopy. Xylem is dead anyway, even in a perfectly healthy plant. $\endgroup$ – AMR Oct 1 '17 at 3:00
  • $\begingroup$ From observation, trees are going to die if their roots die. (Although with some you can induce new root growth on cuttings.) Far more likely is that the leaves & trunk will die (or be broken/cut off), and new shoots will sprout from the living roots. $\endgroup$ – jamesqf Oct 1 '17 at 5:11

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