Importance of Biospheric Co2 in a Subcanopy Atmosphere Deduced From 14C AMS Measurements
Bibliographic Data
| ID | 9242049 |
|---|---|
| Authors | P M Grootes, G W Farwell, F H Schmidt, D D Leach, Minze Stuiver |
| Year | 1989 |
| Volume | 31 |
| Issue | 03 |
| Pages | 475-480 |
| Publication date | 1989-01-01 |
| Open Access | No |
| Type | ARTICLE |
| Venue | Radiocarbon (JOURNAL) |
| Journal identifiers | ISSN: 0033-8222 • E-ISSN: 1945-5755 |
| Publisher | Cambridge University Press (CUP) (PUBLISHER) |
| DOI | 10.1017/s0033822200012066 |
| OpenAlex | W2516537051 |
| Language | EN |
| Citations received | 5 |
| References cited | 1 |
14 C concentrations in the stem cellulose of a Sitka spruce from the Pacific coast of Washington respond to changes in atmospheric 14 CO 2 concentration within 5–6 weeks. δ 14 C values for cellulose were consistently lower than those of the corresponding clean troposphere during rapid increase in atmospheric 14 C caused by nuclear weapons tests (1962–64). Possible reasons for this include: 1) a delay of days or weeks in incorporation of recent photosynthate, 2) the use of stored photosynthate, and 3) photo-assimilation of biospheric decay CO 2 . We estimate that the influence of process 1 is small or negligible. The respective contributions to the total carbon deposited as radial stem growth in our Sitka spruce then are 2) < 15% (possibly 0), and 3) 10%–23% (13%–28% if the possible effect of root respiration is included in the biosphere decay component). We plan to test this concept by looking for a vertical 14 C gradient in the 1963 growth ring of a tree located in a dense forest canopy; we do not expect to find such a gradient in a similar tree from a strongly wind-washed location
Atmospheric sciences · Biology · Biosphere · Botany · Canopy · Cellulose · Meteorology · Physics · Radiocarbon dating · Respiration · Troposphere · Chemistry · Environmental Science · Plant responses to elevated CO2 · Plant Water Relations and Carbon Dynamics · Tree-ring climate responses · Ecology · Geology · Paleontology
The 1950s atmospheric bomb- 14 C peak
Δ 14 C Peaks Appearing in Earlywood and Latewood Tree Rings (Ad 770–780) in Northeastern Arizona
C Level At Mt Chiak and Mt Kyeryong in Korea
Use of Bomb-Produced 14 C to Evaluate the Amount of CO 2 Emanating from Two Peat Bogs in Finland
Estimation of the Occurrence Time of the Δ 14 C Peak in Ad 775 Based on the Oxidation Time of 14 C in the Atmosphere and Δ 14 C Values in Subannual Tree Rings
| Citations per year | 0.16 |
|---|---|
| Citation span | 1995 - 2026 (32) |
| Highly cited | No |