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Relationships between stem CO2 efflux, substrate supply, and growth in young loblolly pine trees
| Authors: | Christopher A. Maier, Kurt Johnsen, Barry Clinton, Kim H. Ludovici |
| Year: | 2009 |
| Type: | Scientific Journal |
| Station: | Southern Research Station |
| Source: | New Phytologist, Vol. 185: 502-513 |
Download (PDF 506 KB): https://research.fs.usda.gov/download/treesearch/34266.pdf
Abstract
We examined the relationships between stem CO2 efflux (Es), diameter
growth, and nonstructural carbohydrate concentration in loblolly pine trees. Carbohydrate
supply was altered via stem girdling during rapid stem growth in the
spring and after growth had ceased in the autumn. We hypothesized that substrate
type and availability control the seasonal variation and temperature sensitivity of
Es.