About trees

favajal45 · 16th May 2011, 07:40 PM

We insist on planting more trees.I received a question from one young person like this---trees utilises CARBON-DI-OXIDE for photosynthesis in the morning and excrets oxygen in air which is useful to us but during night time they dont do photosynthesis and rather emit CARBON-DI-OXIDE to atmosphere,then this is harmful to us if we plant more trees---I am unable to answer.Provide me suitable answer .
Thanks

Eric Frei · 16th May 2011, 11:04 PM

The answer is simple.

They put out more O2 than CO2.

They also can convert CO2 into stored C

They do not store CO2 but C

jmcg.insight.gardens · 17th May 2011, 11:44 PM

Hi favajal45

Quote:

We insist on planting more trees.I received a question from one young person like this---trees utilises CARBON-DI-OXIDE for photosynthesis in the morning and excrets oxygen in air which is useful to us but during night time they dont do photosynthesis and rather emit CARBON-DI-OXIDE to atmosphere,then this is harmful to us if we plant more trees---I am unable to answer.Provide me suitable answer .
Thanks

a simple answer for a young person is available here.

Ten Top Reasons Why Trees Are Important

a more scholarly article can be read below.

I could not imagine a world without trees, plant many....

Eric Frei · 18th May 2011, 09:59 PM

From that content farm link:-

Quote:

3. Trees Control Noise Pollution
Trees muffle urban noise almost as effectively as stone walls. Trees, planted at strategic points in a neighborhood or around your house, can abate major noises from freeways and airports.

This is a myth, a fallacy and inaccurate.... that's why it is good to reference university documents and scientific journals etc.

I have attached a 2008 PDF about it tested and busted.

Back when I did my Level 3 in 2004 we were told it was a myth, 200' of trees drops sound by 10db and if you were 200' away without trees it drops about the same.

Noise Products - Environment - FHWA

Quote:

Vegetation, if high enough, wide enough, and dense enough (cannot be seen through), can decrease highway traffic noise. A 200-foot width of dense vegetation can reduce noise by 10 decibels, which cuts the loudness of traffic noise in half. It is often impractical to plant enough vegetation along a road to achieve such reductions; however, if dense vegetation already exists, it could be saved. If it does not exist, roadside vegetation can be planted to create psychological relief, if not an actual lessening of traffic noise levels.

jmcg.insight.gardens · 18th May 2011, 10:24 PM

Quote:

This is a myth, a fallacy and inaccurate.... that's why it is good to reference university documents and scientific journals etc.

I was referencing from a university document,

if it's inaccurate good to pull it up and dispute.

I agree it's best to reference reliable sources.

Interesting that the information is in part incorrect, but the overall article I felt was good as a source for explanation that was pertinent to what was asked by favajal45.

I'm fine with any errors put through the dry cleaners.

Come to think of it you have made me remember an article I read some time ago.

Eric Frei · 18th May 2011, 10:45 PM

I do not think About.com is a university or university site or scientific. I am discussing vegetation as noise barriers here.

Sites like that and say Ehow and even Wikipedia must be treated carefully, articles written by people who write articles by skimming the net for information. The article then draws traffic to a page loaded with ads which they hope generates revenue.

jmcg.insight.gardens · 18th May 2011, 11:43 PM

I meant the Forestry PDF. Say's the same thing , it's from a University.

I was agreeing with you I thought.

jmcg.insight.gardens · 18th May 2011, 11:51 PM

point taken.

16th May 2011, 07:40 PM	#1
favajal45 Former Member Join Date: May 2011 Location: Xian City Posts: 19	About trees We insist on planting more trees.I received a question from one young person like this---trees utilises CARBON-DI-OXIDE for photosynthesis in the morning and excrets oxygen in air which is useful to us but during night time they dont do photosynthesis and rather emit CARBON-DI-OXIDE to atmosphere,then this is harmful to us if we plant more trees---I am unable to answer.Provide me suitable answer . Thanks

16th May 2011, 11:04 PM	#2
Eric Frei Admin - Owner Palm & Tree Services in Brisbane Join Date: Jan 2007 Location: Brisbane Posts: 12,994	Re: About trees The answer is simple. They put out more O2 than CO2. They also can convert CO2 into stored C They do not store CO2 but C __________________ Protect your rights to work - Join Australian Tree Association My businesses:- Qualified Brisbane Palm and Tree Lopping \| Stump Grinding Brisbane \| Brisbane - Gold Coast Consulting Arborist

18th May 2011, 10:45 PM	#6
Eric Frei Admin - Owner Palm & Tree Services in Brisbane Join Date: Jan 2007 Location: Brisbane Posts: 12,994	Re: About trees I do not think About.com is a university or university site or scientific. I am discussing vegetation as noise barriers here. Sites like that and say Ehow and even Wikipedia must be treated carefully, articles written by people who write articles by skimming the net for information. The article then draws traffic to a page loaded with ads which they hope generates revenue. __________________ Protect your rights to work - Join Australian Tree Association My businesses:- Qualified Brisbane Palm and Tree Lopping \| Stump Grinding Brisbane \| Brisbane - Gold Coast Consulting Arborist

18th May 2011, 11:43 PM	#7
jmcg.insight.gardens Over mature heritage tree Join Date: Jul 2009 Location: Mannering Park, Australia Posts: 623	Re: About trees I meant the Forestry PDF. Say's the same thing , it's from a University. I was agreeing with you I thought.

18th May 2011, 11:51 PM	#8
jmcg.insight.gardens Over mature heritage tree Join Date: Jul 2009 Location: Mannering Park, Australia Posts: 623	Re: About trees point taken.

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