Influence of vegetation and soil CO2exchange on the concentration and stable oxygen isotope ratio of atmospheric CO2within aPinus resinosacanopy
β Scribed by Lawrence B. Flanagan; Gregory T. Varney
- Publisher
- Springer-Verlag
- Year
- 1995
- Tongue
- English
- Weight
- 945 KB
- Volume
- 101
- Category
- Article
- ISSN
- 0029-8549
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## Abstract The effect of varying ^14^CO contact time upon the concentration of active centres __C__\* in ethylene homopolymerization using the TiCl~4~/MgH~2~ Β· Al(C~2~H~5~)~3~ catalytic system shows that the polymer radioactivity, and hence __C__\*, increase sharply in the first sixty minutes of ^