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Briggs GM, Jurik TW, Gates DM. A comparison of rates of aboveground growth and carbon dioxide assimilation by aspen on sites of high and low quality. Tree Physiol. 1986;2(1):29-34doi: 10.1093/treephys/2.1-2-3.29.
Briggs, G. M., Jurik, T. W., & Gates, D. M. (1986). A comparison of rates of aboveground growth and carbon dioxide assimilation by aspen on sites of high and low quality. Tree physiology, 2(1), 29-34. https://doi.org/10.1093/treephys/2.1-2-3.29
Briggs, G. M., et al. "A comparison of rates of aboveground growth and carbon dioxide assimilation by aspen on sites of high and low quality." Tree physiology vol. 2,1 (1986): 29-34. doi: https://doi.org/10.1093/treephys/2.1-2-3.29
Briggs GM, Jurik TW, Gates DM. A comparison of rates of aboveground growth and carbon dioxide assimilation by aspen on sites of high and low quality. Tree Physiol. 1986 Dec;2(1):29-34. doi: 10.1093/treephys/2.1-2-3.29. PMID: 14975839.
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Tree Physiol. 1986 Dec;2(1):29-34. doi: 10.1093/treephys/2.1-2-3.29.

A comparison of rates of aboveground growth and carbon dioxide assimilation by aspen on sites of high and low quality.

Tree physiology

G. M. Briggs, T. W. Jurik, D. M. Gates

Affiliations

  1. University of Michigan Biological Station, Pellston, Michigan 49769, USA.

PMID: 14975839 DOI: 10.1093/treephys/2.1-2-3.29

Abstract

Net assimilation rates of 10-year-old naturally regenerated bigtooth aspen (Populus grandidentata Michx.) at two sites in northern Michigan, USA, were compared to test the hypothesis that site-related differences in aboveground production depends solely on differences in rates of CO(2) assimilation. On a leaf weight basis, aboveground production on the better site was over twice that on the poorer site, whereas maximum CO(2) assimilation rates on the better site were only 48% higher, leading to a rejection of the hypothesis. Soil respiration rates on the two sites were comparable, suggesting that the difference between sites in aboveground production can be attributed in part to a difference in the proportion of total assimilate allocated belowground.

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