Abstract
In the study of plant carbon relations, the amount of the respiratory losses from the soil was estimated, determining the gradient of the stable isotope {sup 13}C with increasing plant canopy height. According to the literature 8-26% of the CO{sub 2} released in the forests by soil and plant respiratory processes are reassimilated (recycled) by photosynthesis during the day. Our own measurements however, which we conducted in grass land showed diverging results from no indicating of carbon recycling, to a considerable {delta}{sup 13}C gradient suggesting a high carbon recycling rate. The role of other factors, such as air humidity and irradiation which influence the {delta}{sup 13}C in a canopy as well, are discussed. (author) 3 figs., 4 refs.
Siegwolf, R T.W.;
Saurer, M;
[1]
Koerner, C
[2]
- Paul Scherrer Inst. (PSI), Villigen (Switzerland)
- Basel Univ., Basel (Switzerland)
Citation Formats
Siegwolf, R T.W., Saurer, M, and Koerner, C.
CO{sub 2}-recycling by plants: how reliable is the carbon isotope estimation?.
Switzerland: N. p.,
1997.
Web.
Siegwolf, R T.W., Saurer, M, & Koerner, C.
CO{sub 2}-recycling by plants: how reliable is the carbon isotope estimation?.
Switzerland.
Siegwolf, R T.W., Saurer, M, and Koerner, C.
1997.
"CO{sub 2}-recycling by plants: how reliable is the carbon isotope estimation?"
Switzerland.
@misc{etde_492058,
title = {CO{sub 2}-recycling by plants: how reliable is the carbon isotope estimation?}
author = {Siegwolf, R T.W., Saurer, M, and Koerner, C}
abstractNote = {In the study of plant carbon relations, the amount of the respiratory losses from the soil was estimated, determining the gradient of the stable isotope {sup 13}C with increasing plant canopy height. According to the literature 8-26% of the CO{sub 2} released in the forests by soil and plant respiratory processes are reassimilated (recycled) by photosynthesis during the day. Our own measurements however, which we conducted in grass land showed diverging results from no indicating of carbon recycling, to a considerable {delta}{sup 13}C gradient suggesting a high carbon recycling rate. The role of other factors, such as air humidity and irradiation which influence the {delta}{sup 13}C in a canopy as well, are discussed. (author) 3 figs., 4 refs.}
place = {Switzerland}
year = {1997}
month = {Jun}
}
title = {CO{sub 2}-recycling by plants: how reliable is the carbon isotope estimation?}
author = {Siegwolf, R T.W., Saurer, M, and Koerner, C}
abstractNote = {In the study of plant carbon relations, the amount of the respiratory losses from the soil was estimated, determining the gradient of the stable isotope {sup 13}C with increasing plant canopy height. According to the literature 8-26% of the CO{sub 2} released in the forests by soil and plant respiratory processes are reassimilated (recycled) by photosynthesis during the day. Our own measurements however, which we conducted in grass land showed diverging results from no indicating of carbon recycling, to a considerable {delta}{sup 13}C gradient suggesting a high carbon recycling rate. The role of other factors, such as air humidity and irradiation which influence the {delta}{sup 13}C in a canopy as well, are discussed. (author) 3 figs., 4 refs.}
place = {Switzerland}
year = {1997}
month = {Jun}
}