Quote:
Originally Posted by Cleo
Quote:
Originally Posted by Corey
Many of our cold weather trees are starting to die or look sick due to not being able to adapt to the temp change. Many of our trees needed winter freeze for proper growth since the roots aren't freezing in the winter like they are suppose too they are dieing.
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I don't find the first statement to be true at all. Would you be able to state more specific examples?
Would you also be able to explain the second statement in more detail? Are you stating that trees need their roots to freeze in the winter for proper growth?
Thanks. 
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Its a combination of factors related to the climate change that are putting Minnesota hardwood forest at risk and killing it or changing it to a non hardwood of Minnesota's traditional hardwood. Minnesota is a winter/summer forest It needs winter for insect kill off such as the boring pine beetle. It also needs to freeze so as to store falls rain in and around the roots. Also the trees in the northern states shed there leaves and retract the fluids into the roots for winter keeping till spring. If there is not adequate freezing a couple of things happen the water in the root either dry or prematurely enter the above ground parts of the tree triggering premature budding. Winter freezing is vital for forests from Minnesota and north from Minnesota.
Oak, red and white pine, cotton wood, ash, (another species that looks kind of like ash but instead of the propeller seeds it has little balls with tiny seeds),
sugar maple. I live in "the city of trees" Rochester, MN USA
Arbor and DNR have updated out temp zone here in Minnesota Many of the trees we have would not survive in IOWA which is one state south. We are being told to plant trees native to Iowa instead of the traditional Minnesota hard wood.
Example of spacific species. Cotton woods especially ones ranging in the 5-10 year old are turning a sickly yellow. The ash variety is loosing its canopy by 1/2 or more depending where you look 1-50 years old. pines turning brown and loosing their needles plus are being eaten by the boring pine beetle(Minnesota, Canada, Alaska )
{if you have seen the inconvenient truth you have seen a glimpse of this} . Dutch elm disease is running rampant due to the warmer climate. Oak leaves turning a dead brown and loosing there leaves many of these oaks range from 10-100 years of age. This is just of the species I am intimate with through past work.
By all means I am not saying every tree is like that I am just seeing the begining of it. Trees can't get up an move to another spot so to speak.