caa a22 4500 477112439 CHVBK 20180405111613.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF00011441 doi (NATIONALLICENCE)springer-10.1007/BF00011441 Cheng Weixin Biological Sciences Center, Desert Research Institute, P.O. Box 60220, 89506, Reno, NV, USA aut Measurement of rhizosphere respiration and organic matter decomposition using natural 13C [Elektronische Daten] [Weixin Cheng] Due to the limitations in methodology it has been a difficult task to measure rhizosphere respiration and original soil carbon decomposition under the influence of living roots. 14C-labeling has been widely used for this purpose in spite of numerous problems associated with the labeling method. In this paper, a natural 13C method was used to measure rhizosphere respiration and original soil carbon decomposition in a short-term growth chamber experiment. The main objective of the experiment was to validate a key assumption of this method: the δ13C value of the roots represents the δ13C value of the rhizosphere respired CO2. Results from plants grown in inoculated carbon-free medium indicated that this assumption was valid. This natural 13C method was demonstrated to be advantageous for studying rhizosphere respiration and the effects of living roots on original soil carbon decomposition. Kluwer Academic Publishers, 1996 13C nationallicence respiration nationallicence rhizosphere nationallicence soil carbon nationallicence Plant and Soil Kluwer Academic Publishers; http://www.wkap.nl 183/2(1996-09-01), 263-268 0032-079X 183:2<263 1996 183 11104 https://doi.org/10.1007/BF00011441 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00011441 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Cheng Weixin Biological Sciences Center, Desert Research Institute, P.O. Box 60220, 89506, Reno, NV, USA aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; http://www.wkap.nl 183/2(1996-09-01), 263-268 0032-079X 183:2<263 1996 183 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer