Late-Holocene floodplain development, land-use, and hydroclimate–flood relationships on the lower Ohio River, US (Record no. 12870)
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| fixed length control field | 03074nab a2200289 4500 |
| 005 - DATE & TIME | |
| control field | 20220822191516.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 220822b |||||||| |||| 00| 0 eng d |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Bird, Broxton W |
| 245 ## - TITLE STATEMENT | |
| Title | Late-Holocene floodplain development, land-use, and hydroclimate–flood relationships on the lower Ohio River, US |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Name of publisher, distributor, etc | sage |
| Date of publication, distribution, etc | 2019 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Pages | Vol 29, Issue 12, 2019 : (1856-1870 p.). |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Floodplain development, land-use, and flooding on the lower Ohio River are investigated with a 3100-year-long sediment archive from Avery Lake, a swale lake on the Black Bottom floodplain in southern Illinois, US. In all, 12 radiocarbon dates show that Avery Lake formed at 1130 BCE (3100 cal. yr BP), almost 3000 years later than previously thought, indicating that the Black Bottom floodplain is younger and more dynamic than previously estimated. Three subsequent periods of extensive land clearance were identified by changes in pollen composition, corresponding to Native American occupations before 1500 CE and the current Euro-American occupation beginning in the 18th century. Sedimentation rates prior to 1820 CE changed independently of land clearance events, suggesting natural as opposed to land-use controls. Comparison with high-resolution paleoclimate data from Martin Lake, IN, indicates that lower Ohio River flooding was frequent when cold-season precipitation originating from the Pacific/Arctic predominated when atmospheric circulation resembled positive Pacific North American (PNA) conditions and the Pacific Decadal Oscillation (PDO) was in a positive mean state (1130 BCE to 350 CE and 1150–1820 CE). Conversely, Ohio River flooding was less frequent when warm-season precipitation from the Gulf of Mexico prevailed during negative PDO- and PNA-like mean states (350 and 1150 CE). This flood dynamic appears to have been fundamentally altered after 1820 CE. We suggest that extensive land clearance in the Ohio River watershed increased runoff and landscape erosion by reducing interception, infiltration, and evapotranspiration, thereby increasing flooding despite a shift to negative PDO- and PNA-like mean states. Predicted increases in average precipitation and extreme rainfall events across the mid-continental US are likely to perpetuate current trends toward more frequent flood events, because anthropogenic modifications have made the landscape less resilient to changing hydroclimatic conditions. |
| 650 ## - Subject | |
| Subject | anthropogenic environmental impacts, floodplain lakes, |
| 650 ## - Subject | |
| Subject | fluvial dynamics, |
| 650 ## - Subject | |
| Subject | geochemistry, |
| 650 ## - Subject | |
| Subject | Pacific Decadal Oscillation, |
| 650 ## - Subject | |
| Subject | Pacific North American mode, |
| 650 ## - Subject | |
| Subject | paleoclimate, |
| 650 ## - Subject | |
| Subject | sedimentology |
| 700 ## - Added Entry Personal Name | |
| Added Entry Personal Name | Barr, Robert C |
| 700 ## - Added Entry Personal Name | |
| Added Entry Personal Name | Commerford, Julie |
| 773 0# - HOST ITEM ENTRY | |
| Host Biblionumber | 12756 |
| Host Itemnumber | 16504 |
| Place, publisher, and date of publication | London: Sage Publication Ltd, 2019. |
| Title | Holocene/ |
| International Standard Serial Number | 09596836 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://doi.org/10.1177/0959683619865598 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Articles |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| -- | 52275 |
| 650 ## - Subject | |
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| 650 ## - Subject | |
| -- | 52277 |
| 650 ## - Subject | |
| -- | 51326 |
| 650 ## - Subject | |
| -- | 52278 |
| 650 ## - Subject | |
| -- | 52279 |
| 650 ## - Subject | |
| -- | 51378 |
| 650 ## - Subject | |
| -- | 51328 |
| 700 ## - Added Entry Personal Name | |
| -- | 52280 |
| 700 ## - Added Entry Personal Name | |
| -- | 52281 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| -- | ddc |
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