An inconvenient trend: Decadal decline in ground height of swamps in Southern Illinois
September 14, 2023
An understanding of the long-term trends of ground height and sedimentation in a landscape context can provide a framework to better understand the impacts of agricultural development on floodplain processes. This study examined long-term changes in ground height using surface elevation tables (SETs) and sediment deposition measurements in the Cache River floodplains of Southern Illinois including Taxodium distichum swamps in Crawford Tract and Eagle Pond from 2019 to 2022 and in Deer Pond and Snake Hole from 2005 to 2022. The mean ground heights of these swamps decreased by a mean of −0.33, −033, −0.28 and −0.19 cm year−1, respectively. Annual sediment deposition on feldspar markers in Crawford Tract was negligible from 2020 to 2022 (range of annual deposition depth:
Citation Information
| Publication Year | 2023 |
|---|---|
| Title | An inconvenient trend: Decadal decline in ground height of swamps in Southern Illinois |
| DOI | 10.1002/eco.2587 |
| Authors | Beth Middleton |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Ecohydrology |
| Index ID | 70248991 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Wetland and Aquatic Research Center |
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