Effects of climate and land cover on hydrology in the southeastern U.S.: Potential impacts on watershed planning

Journal of the American Water Resources Association
By: , and 

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Abstract

The hydrologic response to statistically downscaled general circulation model simulations of daily surface climate and land cover through 2099 was assessed for the Apalachicola-Chattahoochee-Flint River Basin located in the southeastern United States. Projections of climate, urbanization, vegetation, and surface-depression storage capacity were used as inputs to the Precipitation-Runoff Modeling System to simulate projected impacts on hydrologic response. Surface runoff substantially increased when land cover change was applied. However, once the surface depression storage was added to mitigate the land cover change and increases of surface runoff (due to urbanization), the groundwater flow component then increased. For hydrologic studies that include projections of land cover change (urbanization in particular), any analysis of runoff beyond the change in total runoff should include effects of stormwater management practices as these features affect flow timing and magnitude and may be useful in mitigating land cover change impacts on streamflow. Potential changes in water availability and how biota may respond to changes in flow regime in response to climate and land cover change may prove challenging for managers attempting to balance the needs of future development and the environment. However, these models are still useful for assessing the relative impacts of climate and land cover change and for evaluating tradeoffs when managing to mitigate different stressors.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Effects of climate and land cover on hydrology in the southeastern U.S.: Potential impacts on watershed planning
Series title Journal of the American Water Resources Association
DOI 10.1111/1752-1688.12304
Volume 51
Issue 5
Year Published 2015
Language English
Publisher American Water Resources Association
Contributing office(s) South Atlantic Water Science Center
Description 27 p.
First page 1235
Last page 1261
Country United States
State Alabama, Florida, Georgia
Other Geospatial Apalachicola-Chattahoochee-Flint River Basin
Online Only (Y/N) N
Additional Online Files (Y/N) N