Changes in atmospheric circulation patterns affect midcontinent wetlands sensitive to climate
Limnology and Oceanography
By: J. W. LaBaugh, T. C. Winter, G.A. Swanson, and D. Rosenberry
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Abstract
Twenty-seven years of data from midcontinent wetlands indicate that the response of these wetlands to extremes in precipitation-drought and deluge-persists beyond the extreme events. Chemical changes transcend such simple relations as increased salinity during dry periods because drought provides mechanisms for removal of salt by deflation and seepage to groundwater. Inundation of vegetation zones including rooted or floating mats of cattail (Typha glauca) can stimulate sulfate reduction and shift the anion balance from sulfate to bicarbonate dominance. Disruptions in the circulation of moisture-laden air masses over the midcontinent, as in the drought of 1988 and the deluge of 1993, have a major effect on these wetlands, which are representatives of the primary waterfowl breeding habitat of the continent.
Suggested Citation
LaBaugh, J.W., Winter, T.C., Swanson, G., and Rosenberry, D., 1996, Changes in atmospheric circulation patterns affect midcontinent wetlands sensitive to climate: Limnology and Oceanography, v. 41, no. 5, p. 864-870.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Changes in atmospheric circulation patterns affect midcontinent wetlands sensitive to climate |
| Series title | Limnology and Oceanography |
| Volume | 41 |
| Issue | 5 |
| Year Published | 1996 |
| Language | English |
| Contributing office(s) | Northern Prairie Wildlife Research Center |
| Description | 7 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Limnology and Oceanography |
| First page | 864 |
| Last page | 870 |