2006-09-20 12:28:51 · 8 answers · asked by nashaka21 1 in Science & Mathematics ➔ Biology
Trees actually do respire...their roots respire so yes they do release carbon dioxide. Only the green leaves etc (the chlorophyll/ green pigment) photosynthesise. Trees don't ''draw'' carbon dioxide they take CO2 in through their stomata. In an open field the CO2 molecules can diffuse out in2 the atmosphere, whereas a forest, with lots of trees, has much more confined space so the molecules cannot escape out into the atmosphere and spread out/diffuse as they would in an open field. Hope this helps..
2006-09-21 05:43:12 · answer #1 · answered by jo88 2 · 0⤊ 0⤋
Although trees do use and release CO2 so does grass. CO2 is also produced by the decomposition of leaves. In an open field, fallen leaves are decomposed faster, while in the forest layers of leaves form on the ground which is more shaded than a field releasing CO2 slowly. Also,CO2 is heavier than oxygen so it sinks, when there's less wind to move it around it will concentrate-like in an enclosed space with a heater or as it does in a forest.
2006-09-20 19:44:37 · answer #2 · answered by beautypsychic 3 · 0⤊ 0⤋
J did work in west Texas in the oil fields around large quantities of liquid CO2 so for safety I wore a CO2 detector with the alarm point set at 2 parts Per million.Collaborated it weekly ,and in 2 yrs. I never saw over 1 part per million and it had a quick alarm for 1 time. I never saw any increase in CO2 levels. The green plants are doing a great job.
2006-09-20 19:43:34 · answer #3 · answered by JOHNNIE B 7 · 0⤊ 0⤋
Also, there is a lot of decomposing plants and animals on a forest floor, which releases CO2. There is just not as much material to decompose in an open field.
2006-09-20 19:39:16 · answer #4 · answered by Glenn N 5 · 0⤊ 0⤋
The average CO2 count is very small. Photosynthesis uses both O2 and CO2. Trees take in some CO2, but they produce more than they use.
2006-09-20 19:38:35 · answer #5 · answered by trigonotarbida 3 · 0⤊ 0⤋
Trees actually shoot out CO2. Yes they do convert CO2 into O2, but they also release CO2. If you don't believe me, get someone to explain the light and dark reaction cycles to you.
If you really want to thank something for giving us air to breath, thank algae, not a tree.
2006-09-20 19:35:36 · answer #6 · answered by Cadair360 3 · 0⤊ 0⤋
The concentration of C02 is not concentrate in forest, unless there is a fire. Leaves, trees, greenery all give off large amounts of oxygen, not C02.
2006-09-20 20:18:46 · answer #7 · answered by Strawberry Pony 5 · 0⤊ 0⤋
The trees draw the CO2 because they require it for photosynthesis.
2006-09-20 19:35:14 · answer #8 · answered by carpenterT 1 · 0⤊ 0⤋