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Q: water consumption by trees ( Answered,   0 Comments )
Subject: water consumption by trees
Category: Science > Earth Sciences
Asked by: mustangsallie-ga
List Price: $2.00
Posted: 18 Apr 2006 21:59 PDT
Expires: 18 May 2006 21:59 PDT
Question ID: 720450
How many gallons of water does a mature tree approximately consume
over a period of 24 hours?
Subject: Re: water consumption by trees
Answered By: tlspiegel-ga on 18 Apr 2006 23:32 PDT
Hi mustangsallie,

Thank you for your question.  

Interesting Facts about Oak Trees

"A mature oak tree can draw up to 50 or more gallons of water per day."


"Mature trees can consume up to 15 gallons of water per hour on a hot
day."  (360 gallons)

New Mexico State University


"Pecan trees extract the moisture they need from soil in the root zone
daily during the growing season. The amount a tree withdraws may vary
from a gallon or less for a young tree to as much as 150-250 gallons
per day in a fully mature tree. This water demand is the tree's peak
(maximum) water use on the hottest day of the summer. Water
consumption is decreased before and after this maximum use."


It is impossible to meet the total phenomenal watering requirements of
a large, mature tree which may use and transpire 50 gallons a day.

Water demand of various tree species
-  High demand  
Silver Maple
Manitoba Maple 

-  Moderate demand
Other maples (Sugar, Red)
Mountain Ash 

-  Low demand


Ask a Scientist Botany Archive

Calculating Tree Water Consumption 

Question - How much water can a mature cottonwood tree drink or use per day?
Data: 10 year old cottonwood, 35 feet high, July 15th, 95 degrees,
relative humidity 33%, 7 mile an hour wind out of the west, southwest
2:15 in the afternoon no clouds, unlimited supply of water available.

Perhaps helpful:

"A mature cottonwood tree can use a lot of water in the growing
season, but uses very little when leaves fall in the winter.

keyword search

consumption use gallons water mature tree 24 hours day

Best regards,
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