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SWAT Model for Yadkin Pee Dee Watershed

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Type:	Resource
Storage:	The size of this resource is 53.2 MB
Created:	Sep 28, 2018 at 5:47 p.m.
Last updated:	Sep 28, 2018 at 6:04 p.m.
Citation:	See how to cite this resource
Content types:	Model Instance Content

Sharing Status:	Public
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Abstract

This study assessed the combined effects of increased urbanization and climate change on streamflow in the Yadkin-Pee Dee watershed (North Carolina, USA) and focused on the conversion from forest to urban land use, the primary land use transition occurring in the watershed. We used the Soil and Water Assessment Tool to simulate future (2050-2070) streamflow and baseflow for four combined climate and land use scenarios across the Yadkin-Pee Dee River watershed and three subwatersheds. The combined scenarios pair land use change and climate change scenarios together. Compared to the baseline, projected streamflow increased in three out of four combined scenarios and decreased in one combined scenario. Baseflow decreased in all combined scenarios, but decreases were largest in subwatersheds that lost the most forest. The effects of land use change and climate change were additive, amplifying the increases in runoff and decreases in baseflow. Streamflow was influenced more strongly by climate change than land use change. However, for baseflow the reverse was true; land use change tended to drive baseflow more than climate change. Land use change was also a stronger driver than climate in the most urban subwatershed. In the most extreme land use and climate projection the volume of the 1-day, 100 year flood nearly doubled at the watershed outlet. Our results underscore the importance of forests as hydrologic regulators buffering streamflow and baseflow from hydrologic extremes. Additionally, our results suggest that land managers and policy makers need to consider the implications of forest loss on streamflow and baseflow when planning for future urbanization and climate change adaptation options. This is the SWAT model used.

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Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

Yadkin-Pee Dee Watershed

North Latitude

36.5618°

East Longitude

-79.7564°

South Latitude

34.8040°

West Longitude

-81.5197°

Temporal

Start Date:
End Date:

Content

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Additional Metadata

Name	Value
MIGRATED_FROM	SWAT Model Instance Resource

How to Cite

Suttles, K. (2018). SWAT Model for Yadkin Pee Dee Watershed, HydroShare, http://www.hydroshare.org/resource/d8101349d40045f49e44102ba660010e

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

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