"Low-elevation sugar maple suffered distinct episodes of slow growth, likely because of insect defoliators" Controlled fumigation experiments have demonstrated that exposure to ozone increases the attacks from insects, disease, fungus, and vulnerability to winterkill and windthrow (less carbohydrates allocated to roots). If you are interested I just put up a post at witsendnj that I've been working on all week - the nitrogen cycle mostly. Thanks again for responding.
Thanks Donb41, I found the study. " In contrast with the traditional analysis, this approach yielded chronologies that were consistently correlated with climate but with important exceptions." Correlation does not mean causation! youtube is so annoying with these short comments and no links! continued...
The world just lost one of the greatest Environmentalist ever,,Yes I am talking about the Dear Leader Kim Jong IL. He is the only leader of Government that protected Mother Earth by denying Humans Electricity/ Heat/ Water and Fertilized Mother Earth with the Dead! This lady would be Fertilizer if she lived in North Korea and Dear Leader Kim Jong IL seen that Smoke and Ash coming from her Polluting Chimney! Al Gore must be getting low on Funds,, Lady Needs Mental Help!
@FactCheck5 what a petty immature statement. the fact that you had environmentalists so much that you compare them to totalitarian leaders tells me you're so ideologically brainwashed you'd rather make stupid comments like that then actually write anything constructive.
air pollution and climate change are pretty closely connected - its beyond correlation. Synergistic - combined effects of air pollution and climate change affect the trees.
It's not climate that is killing trees - it's air pollution. Decades of scientific research have demonstrated that ozone impairs the ability of vegetation to produce chlorophyll, damaging foliage and needles and causing physiological changes that lead to increased susceptibility to insects, disease, fungus, winterkill, windthrow and drought.
ALL trees are in decline now including young trees being grown and watered in containers, so it isn't long-term climate change or erratic precipitation.
@witsendnj See the following which uses more sophisticated methods to isolate different causes for maple tree decline and finds a significant contribution from climate change:
Canadian Journal of Forest Research, 2008, 38:(10) 2635-2649, 10.1139/X08-106
Forest dynamics and the growth decline of red spruce and sugar maple on Bolton Mountain, Vermont: a comparison of modeling methods
Montane forests in the northeastern United States have experienced symptoms of declining vigor, such as branch dieback and increased mortality, over the last half-century. These declines have been attributed to the cumulative impacts of acid deposition, but reconstructing these declines from tree-ring records has proved difficult because of confounding factors that affect low-frequency growth patterns, including climate and natural growth trajectories following disturbance.
We obtained tree-ring records of red spruce (Picea rubens Sarg.) and sugar maple (Acer saccharum L.) from three elevations on Bolton Mountain, Vermont, and applied traditional dendroclimatological analyses that revealed a profound declining growth–climate correlation since ca. 1970 for sugar maple but much less so for red spruce. We then applied a new multifaceted statistical approach that conservatively detrends tree-ring records by minimizing the influences of tree size, age
, and canopy disturbances on radial growth. In contrast with the traditional analysis, this approach yielded chronologies that were consistently correlated with climate but with important exceptions. Low-elevation sugar maple suffered distinct episodes of slow growth, likely because of insect defoliators, and also a progressive decline since ca. 1988.
Red spruce experienced subdecadal episodes of decline that may be related to freeze–thaw events known to injure foliage but showed no evidence of a progressive decline. This analysis was supported by a forest plot resurvey that indicated major declines in these species.
Great story. Well filmed....but the loud music overwhelms the story. It's like going to a great restaurant with friends but the background music drowns out the conversation.
Fascinating. What a great example of a true American hero. She was curious, she asked questions, she performed reserach and she shared (and continues to share) her research.
A direct correlation between reduction in sugar and climate change, one more factor to point too.
What do you do about it ... boycott walmart and stuff from China -- and restore balance to the world.
HyperMediaNews 3 weeks ago
"Low-elevation sugar maple suffered distinct episodes of slow growth, likely because of insect defoliators" Controlled fumigation experiments have demonstrated that exposure to ozone increases the attacks from insects, disease, fungus, and vulnerability to winterkill and windthrow (less carbohydrates allocated to roots). If you are interested I just put up a post at witsendnj that I've been working on all week - the nitrogen cycle mostly. Thanks again for responding.
witsendnj 2 months ago
Thanks Donb41, I found the study. " In contrast with the traditional analysis, this approach yielded chronologies that were consistently correlated with climate but with important exceptions." Correlation does not mean causation! youtube is so annoying with these short comments and no links! continued...
witsendnj 2 months ago
The world just lost one of the greatest Environmentalist ever,,Yes I am talking about the Dear Leader Kim Jong IL. He is the only leader of Government that protected Mother Earth by denying Humans Electricity/ Heat/ Water and Fertilized Mother Earth with the Dead! This lady would be Fertilizer if she lived in North Korea and Dear Leader Kim Jong IL seen that Smoke and Ash coming from her Polluting Chimney! Al Gore must be getting low on Funds,, Lady Needs Mental Help!
FactCheck5 2 months ago
@FactCheck5 what a petty immature statement. the fact that you had environmentalists so much that you compare them to totalitarian leaders tells me you're so ideologically brainwashed you'd rather make stupid comments like that then actually write anything constructive.
endosymbiotictheory 2 months ago
air pollution and climate change are pretty closely connected - its beyond correlation. Synergistic - combined effects of air pollution and climate change affect the trees.
1974BJD 2 months ago
google witsendnj blogspot for links to scientific research about the impact of tropospheric ozone on trees and agricultural crops.
witsendnj 2 months ago
It's not climate that is killing trees - it's air pollution. Decades of scientific research have demonstrated that ozone impairs the ability of vegetation to produce chlorophyll, damaging foliage and needles and causing physiological changes that lead to increased susceptibility to insects, disease, fungus, winterkill, windthrow and drought.
ALL trees are in decline now including young trees being grown and watered in containers, so it isn't long-term climate change or erratic precipitation.
witsendnj 2 months ago
@witsendnj See the following which uses more sophisticated methods to isolate different causes for maple tree decline and finds a significant contribution from climate change:
Canadian Journal of Forest Research, 2008, 38:(10) 2635-2649, 10.1139/X08-106
Forest dynamics and the growth decline of red spruce and sugar maple on Bolton Mountain, Vermont: a comparison of modeling methods
Daniel G. Gavin, Brian Beckage, Benjamin Osborne
[continued]
DonB41 2 months ago
@witsendnj [cont]
ABS
Montane forests in the northeastern United States have experienced symptoms of declining vigor, such as branch dieback and increased mortality, over the last half-century. These declines have been attributed to the cumulative impacts of acid deposition, but reconstructing these declines from tree-ring records has proved difficult because of confounding factors that affect low-frequency growth patterns, including climate and natural growth trajectories following disturbance.
DonB41 2 months ago
@witsendnj [cont]
We obtained tree-ring records of red spruce (Picea rubens Sarg.) and sugar maple (Acer saccharum L.) from three elevations on Bolton Mountain, Vermont, and applied traditional dendroclimatological analyses that revealed a profound declining growth–climate correlation since ca. 1970 for sugar maple but much less so for red spruce. We then applied a new multifaceted statistical approach that conservatively detrends tree-ring records by minimizing the influences of tree size, age
DonB41 2 months ago
@witsendnj [cont]
, and canopy disturbances on radial growth. In contrast with the traditional analysis, this approach yielded chronologies that were consistently correlated with climate but with important exceptions. Low-elevation sugar maple suffered distinct episodes of slow growth, likely because of insect defoliators, and also a progressive decline since ca. 1988.
DonB41 2 months ago
@witsendnj [cont.]
Red spruce experienced subdecadal episodes of decline that may be related to freeze–thaw events known to injure foliage but showed no evidence of a progressive decline. This analysis was supported by a forest plot resurvey that indicated major declines in these species.
DonB41 2 months ago
I think that while the music did soe interference, it did no real harm. This is an important video that I will use in my Natural History classes.
FrTomNaturalist 2 months ago
Great story. Well filmed....but the loud music overwhelms the story. It's like going to a great restaurant with friends but the background music drowns out the conversation.
wyre8w 2 months ago
Fascinating. What a great example of a true American hero. She was curious, she asked questions, she performed reserach and she shared (and continues to share) her research.
A direct correlation between reduction in sugar and climate change, one more factor to point too.
cbemerine 2 months ago