facebook
twitter
rss
account
search
search
 

Urban trees also at risk in drought

July 19, 2012 at 4:01 PM   |   Comments

WEST LAFAYETTE, Ind., July 19 (UPI) -- This summer's U.S. drought could damage trees as well as agricultural crops, and some could die or be affected for years to come, researchers say.

Although trees have deeper moisture-reaching roots than agricultural crops, it doesn't make them immune to prolonged drought, Purdue University urban forestry specialist Lindsey Purcell said.

"Drought can have a major impact on tree health and survival by effectively slowing and reducing growth," he said in a Purdue release Thursday.

"If drought is severe enough or lasts for a prolonged period of time -- such as what we're experiencing now -- it also can cause death to all or portions of a tree."

A more common effect of drought is to reduce a tree's ability to withstand insects and diseases, he said.

A water-deprived tree will see a significantly lowering of its energy reserves needed to produce chemicals that ward off pathogens, he said.

© 2012 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
Recommended UPI Stories
Most Popular
1
Boeing may build NASA's space taxi Boeing may build NASA's space taxi
2
Proposed Texas textbooks teach climate change skepticism Proposed Texas textbooks teach climate change skepticism
3
The NSA will now map out the entire Internet The NSA will now map out the entire Internet
4
Humpback whale rescued off Maine coast Humpback whale rescued off Maine coast
5
Dogs are the favorite food of leopards in rural India Dogs are the favorite food of leopards in rural India
Trending News
Video
x
Feedback