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| ARCTIC LAKES AND STREAMS AS GAS CONDUITS TO THE ATMOSPHERE - IMPLICATIONS FOR TUNDRA CARBON BUDGETS |
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| Author(s): KLING GW, KIPPHUT GW, MILLER MC |
| Source: SCIENCE Volume: 251 Issue: 4991 Pages: 298-301 Published: JAN 18 1991 |
| Times Cited: 184 References: 29 |
| Abstract: Arctic tundra has large amounts of stored carbon and is thought to be a sink for atmospheric carbon dioxide (CO2) (0.1 to 0.3 petagram of carbon per year) (1 petagram = 10(15) grams). But this estimate of carbon balance is only for terrestrial ecosystems. Measurements of the partial pressure of CO2 in 29 aquatic ecosystems across arctic Alaska showed that in most cases (27 of 29) CO2 was released to the atmosphere. This CO2 probably originates in terrestrial environments; erosion of particulate carbon plus ground-water transport of dissolved carbon from tundra contribute to the CO2 flux from surface waters to the atmosphere. If this mechanism is typical of that of other tundra areas, then current estimates of the arctic terrestrial sink for atmospheric CO2 may be 20 percent too high. |
| Document Type: Article |
| Language: English |
| Reprint Address: KLING, GW (reprint author), MARINE BIOL LAB, CTR ECOSYST, WOODS HOLE, MA 02543 USA |
Addresses:
1. UNIV ALASKA, INST MARINE SCI, FAIRBANKS, AK 99775 USA
2. UNIV CINCINNATI, DEPT BIOL SCI, CINCINNATI, OH 45221 USA |
| Publisher: AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 |
| Subject Category: Multidisciplinary Sciences |
| IDS Number: ET678 |
| ISSN: 0036-8075 |
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| | | | | | | | | Record from Web of Science® | | | | | | | | | |