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Characterizing the Landscape Structure of Urban Wetlands Using Terrain and Landscape Indices

Authors: Olusola Festus*, University of Missouri - Kansas City, Wei Ji, University of Missouri - Kansas City
Topics: Remote Sensing, Land Use and Land Cover Change, Urban Geography
Keywords: Habitat loss, Landscape Metrics; Landscape structure, Terrain Analysis, Watershed, Terrestrial wetland habitat
Session Type: Paper
Day: 4/6/2020
Start / End Time: 4:40 PM / 5:55 PM
Room: Virtual Track 1
Presentation File: No File Uploaded


Several studies have shown human impacts on urban wetlands. These impacts are mostly studied at broad scales, which may generalize and aggregate important information needed for landscape quantification or terrain analysis. This situation can weakly or inappropriately address the structure of wetland landscapes, thus affecting the assessment of the quantities and qualities of terrestrial wetland habitats. To address these issues for a better understanding of urban wetland dynamics, this study proposes the use of landscape and terrain indices to characterize the landscape structure of urban wetlands at a fine scale in order to assess its usefulness in contributing to wildlife sustainability. To achieve this goal, secondary terrain attribute data are integrated with an object-based satellite image classification at the wetland and watershed level. The result reveals a general swell in wetland coverage at the watershed level. Further analysis shows the size and shape complexities, and edge irregularities are increased significantly at the patch level but slightly at the watershed level. Terrain analysis further reveals a potential increase in wetness and a decrease in stream power vulnerability for most of the major wetlands under study. These results suggest that terrain and landscape indices are effective in characterizing the structure of urban wetlands that supports socio-ecological sustainability.

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