The Research Product Clearinghouse portion of the EPSCoR website provides access to a diverse body of resources from the OK NSF EPSCoR Research Infrastructure Improvement Award No. OIA-1301789 (2013-2018), “Adapting Socio-Ecological Systems to Increased Climate Variability.” Resources include peer-reviewed publications that will prove beneficial for researchers, decision-makers, and individuals. Journal articles developed by the OK NSF EPSCoR team provide important foundational research that will support future research efforts. A selection of those articles is below; publications may be accessed via the citation links.
Ecology & Hydrology
- Dale, J., Zou, C. B., Andrews, W. J., Long, J. M., Liang, Y., & Qiao, L. (2015). Climate, Water Use, and Land Surface Transformation in an Irrigation Intensive Watershed Streamflow Responses from 1950 through 2010. Agricultural Water Management, 160, 144-152.
Summary: Researchers analyzed long-term records of climate, land-use and land-cover, and reconstructed the water budget based on precipitation, groundwater levels, and water use from 1950 through 2010 in the Cimarron–Skeleton watershed and a portion of the Cimarron–Eagle Chief watershed in Oklahoma, an irrigation-intensive agricultural watershed in the Southern Great Plains. The Cimarron River is transitioning from a historically flashy river to one that is more stable with a lower frequency of both high and low flow pulses, a higher baseflow, and an increased median flow due in part to the return of cropland to grassland. These results demonstrated the interrelationship among climate, land use, groundwater withdrawal and streamflow regime and the potential to design agricultural production systems and adjust irrigation to mitigate the impact of increasing climate variability on streamflow in irrigation intensive agricultural watershed.
- Qiao, L., Zou, C. B., Will, R. E., & Stebler, E. (2015). Calibration of SWAT Model for Woody Plant Encroachment Using Paired Experimental Watershed Data. Journal of Hydrology, 523, 231-239.
Summary: This research provides detailed biophysical and hydrological parameters for tallgrass prairie under moderate grazing and eastern redcedar, which can be used to calibrate any model for further validation and application by the hydrologic modeling community.
- Qin, Y., Xiao, X., Wang, J., Dong, J., Ewing, K., Hoagland, B., Hough, D. J., Fagin, T. D., Zou, Z., Geissler, G. L., Xian, G. Z., & Loveland, T. R. (2016). Mapping Annual Forest Cover in Sub-Humid and Semi-Arid Regions through Analysis of Landsat and PALSAR Imagery. Remote Sensing, 8(11), 933.
Summary: To overcome the uncertainty of current forest maps in Oklahoma, researchers produced this Oklahoma forest cover map at the spatial resolution of 30 meters using the integration of microwave and optical remote sensing images.
- Zou, C. B., Qiao, L., & Wilcox, B. P. (2015). Woodland Expansion in Central Oklahoma will Significantly Reduce Streamflows - A Modelling Analysis. Ecohydrology, 9(5), 807-816.
Summary: Researchers used the Soil and Water Assessment Tool to simulate changes to the water budget resulting from woody plant encroachment for the lower Cimarron River basin in central Oklahoma. Under the climate conditions of the period 1988–2009, researchers estimate that complete conversion of the rangelands to eastern redcedar woodlands would result in reductions of up to 40% in annual streamflow for the drier, upper portion of the basin, and approximately 20% for the entire basin.
- Zou, C. B., Caterina, G. L., Will, R. E., Stebler, E., & Turton, D. (2015). Canopy Interception for a Tallgrass Prairie Under Juniper Encroachment. Plos One, 10(11).
Summary: Researchers quantified and contrasted spatial and temporal variations of rainfall redistribution for a juniper (Juniperus virginiana, redcedar) woodland and a tallgrass prairie in the south-central Great Plains. Results showed no significant difference in total rainfall loss to canopy interception between redcedar trees and tallgrass prairie.Increasing structural complexity associated with redcedar encroachment into tallgrass prairie changes the rainfall redistribution and partitioning pattern at both the temporal and spatial scales, but does not change the overall canopy interception ratios compared with unburned and ungrazed tallgrass prairie. Our findings support the idea of convergence in interception ratio for different canopy structures under the same precipitation regime.
Economics & Visualization Models
Boyer, T. A., Jayasekera, D. H. W., & Moss, J. Q. (2016). An Assessment of Oklahoma City Commercial Businesses’ Willingness to Adopt Irrigation Water Conservation Methods. HortTechnology, 26(6), 793-802.
Summary: Outdoor irrigation water conservation in the commercial sector has rarely been studied. Periodic drought stress in Oklahoma has forced utilities' departments, including the City of Oklahoma City, to seek ways of conserving water in both the residential and nonresidential sectors. Most of these efforts largely targeted the residential sector. In this study, we determined the willingness of commercial businesses in the Oklahoma City metro area to participate in water conservation methods, such as installing soil moisture sensors (SMCs), installing smart irrigation controllers (SICs) for their businesses, and participating in voluntary landscape irrigation assessments (LIA).
- Boyer, T. A., Melstrom, R. T., & Sanders, L. D. (2017, March 1). Effects of Climate Variation and Water Levels on Reservoir Recreation. Lake and Reservoir Management, 00:1-11.
We combined information on valuation, visitation, and time-varying site quality to measure the effects of climate variation and reservoir water levels on recreational demand at Fort Cobb Reservoir, Oklahoma. A time series model of monthly visitation was estimated to measure the effect of water levels, rainfall, wind speed, and air temperature fluctuations on visitation to the reservoir. The results provide no evidence that visitation is affected by rainfall and wind speed but strong evidence that visitation is affected by water levels and air temperature, even after controlling for seasonality in demand.
- Ziolkowska, J. R., & Peterson, J. M. (2017). Competition for Water Resources: Experiences and Management Approaches in the U.S. and Europe (1st ed.). Amsterdam, Netherlands: Elsevier.
Summary: This book addresses the escalation of global issues regarding water scarcity and the necessary, cost-effective strategies that must be put in place in order to deal with escalating water crisis. The book evaluates use and competition for water resources in the U.S. and Europe, emphasizing the problems and challenges of dealing with tradeoffs in water. Water management strategies that can be used to optimize water use and allocation, mitigate water scarcity, and adapt to water scarcity are also addressed. This comprehensive overview and comparison of management practices across two continents is a unique and invaluable resource for researchers, policymakers, and educators in water.
- Ziolkowska, J. R., & Reyes, R. (2016). Geospatial Analysis of Desalination in the U.S. - An Interactive Tool for Socio-Economic Evaluations and Decision Support. Applied Geography, 71, 115-122.
Summary: This paper presents 5D and 6D geospatial models and a multi-dimensional analysis of desalination trends in the U.S. in the time span 1950-2013. The models can be used both for educational and interdisciplinary research purposes and help with determining socio-economic viability of establishing prospective desalination plants in different regions in the future. They can also help support decision makers in solving emergency questions related to water shortages and preparing for long-term water scarcity in different US regions.
- Ziolkowska, J. R., & Reyes, R. (2016). Geological and Hydrological Visualization Models for Digital Earth Representation. Computers & Geosciences, 94, 31-39.
Summary: This paper presents techniques and interactive models for multi-dimensional analyses and geospatial visualization in virtual globes based on three application examples for earthquake events, groundwater well levels and geothermal energy in Texas. The models can be applied to a variety of problems in different disciplines, especially to support decision-making processes.
- Ziolkowska, J. R., & Reyes, R. (2016). Impact of Socio-Economic Growth on Desalination in the U.S. Journal of Environmental Management, 167, 15-22.
Summary: This paper evaluates the impact of selected socio-economic variables on desalination development in the US in the time span 1970-2013. The results show that the GDP and population growth have significantly impacted the desalination sector over the analyzed time period. The insights into the economics of desalination provided with this paper can be used to further evaluate the cost-effectiveness of desalination both in the U.S. and other countries around the world.
- Ziolkowska, J. R. (2014). Is Desalination Affordable? A Regional Cost and Price Analysis. Water Resources Management, 29(5), 1385-1397.
Summary: This paper provides an in-depth analysis on the economics of desalination with country-specific examples. It depicts a comprehensive picture of cost variability of desalinated water and points out challenges for cost-effective desalination in the future.
- Ziolkowska, J. R. (2015). Shadow Price of Water for Irrigation - A Case of the High Plains. Agricultural Water Management, 153, 20-31.
Summary: This paper estimates the economic value of water for agricultural production in the U.S. High Plains. The study can be helpful to stakeholders and policy makers to evaluate scenarios and tradeoffs between profitable crop production and conservation of water resources.
Social Impacts & Assessment
- Caniglia, B., Frank, B., Kerner, B., & Mix, T. L. (2016). Water Policy and Governance Networks: A Pathway to Enhance Resilience Toward Climate Change. Sociological Forum, 31, 828-845.
Summary: Natural resources governance is key to enhancing resilience and strengthening socioecological systems. Overlapping jurisdictions and lack of clarity in the lines of authority reduce the eﬃciency of environmental policies and governance, jeopardizing the conservation and sustainable use of resources. Analysis of state-level water policies and governance reveals that Oklahoma water governance experiences multiple forms of fragmentation while also showing features of an adaptive network. Identifying gaps and understanding fragmentation can help policy makers develop strategies to enhance the adaptive features of water governance.