Respiration

Do plants give out as much carbon dioxide during respiration as they take in during carbon assimiltion? I have always thought that one of the main problems of deforestation, cutting down too many trees etc, is that we lose the capacity for trapping carbon - but I've been thinking about respiration, and wondering if they exude comparable levels of carbon back into the eco system? I know they take in more oxygen during carbon assimilation than they take in during respiration, but what about carbon?

 

Err,I dunno
Could you repeat the question

 

[Could you repeat the question[/QUOTE]
Do plants give out as much carbon in respiration as they take in during carbon assimilation? Assuming it will largely depend on species, environments, circumstances, etc.

 

Do plants give out as much carbon in respiration as they take in during carbon assimilation? Assuming it will largely depend on species, environments, circumstances, etc.[/QUOTE]


Sorry, I was being stupid.
I haven't got a clue but I hope someone can come up with something relevant for you.

 

Can I ask the audience please.

 

Hope this helps

https://www.bbc.com/bitesize/guides/zpwmxnb/revision/3

 

Thanks, it helps in that it is a good tool for explaining the terms, but what I'm seeking is not so much a description of what happens, as an answer to whether more carbon is given out in respiration than is taken in during carbon assimilation. Having been looking into this on and off all day, I've concluded it is likely to be dependent on different factors in different plants at different times, rather than a straight yes or no answer.

 

The short answer is that there are never too many plants and trees in this era. Perhaps the effects of recreational bonfires should be a more valid study of how local practices destroy any benefits of trying to be better custodians of our planet through gardening.

And as a by the by, I am always happy to still be releasing CO2 in tne morning .. still able to smell the flowers

Now the big question... is this a curiosity question or is it about changing your approach to landscaping?

 

Plants churn out 11 times more CO2 than is released by human activity: study

 

Many climate scientists would agree with you on this.

This report of a study is full of words like may, suggests, could, possibly, might etc. Sometimes trying to get hard facts and figures out of scientists can be like trying a jelly to the wall.
Also note this at the bottom: "Editor's note November 22, 2017: This story was amended to emphasise that plants are a net carbon sink and they absorb more carbon dioxide than they emit. The ABC acknowledges a previous version of the story was unintentionally misleading and did not represent the research findings in an accurate context."
There are just too many variables and unknowns to pin down a definitive answer, but to the best of my knowledge CO2 take up is greater than emission. CO2 take up provides the glucose required both for respiration and for plant growth (glucose --> starch, cellulose, lignin building blocks for plant growth): so if the plant is growing then it is taking up more CO2 than it releases.

 

[QUOTEis this a curiosity question or is it about changing your approach to landscaping?[/QUOTE]

Curiosity.