Water Resource Variability and Climate Change

Li, Yingkui; Urban, Michael A.

doi:10.3390/w8080348

Cited by 6 publications

(5 citation statements)

References 33 publications

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“…SWAT was originally developed by the U.S. Department of Agriculture (USDA)-Agricultural Research Service (ARS) to predict the impact of land management practices on water, sediment, and nutrients in large ungaged basins [24][25][26] .…”

Section: Model Setupmentioning

confidence: 99%

Comparison of three regionalization techniques for predicting streamflow in ungaged watersheds in Nebraska, USA using SWAT model

Liew

Mittelstet

2018

International Journal of Agricultural and Biological Engineering

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This study compared three approaches, regional averaging, nearest neighbor, and donor techniques, to regionalize parameters in the Soil and Water Assessment Tool (SWAT) on eleven watersheds located in the Dissected Plains, Plains, and Rolling Hills Landforms in the eastern portion of the State of Nebraska, USA. Within the Rolling Hills Landform, three watersheds were randomly selected as calibration watersheds while two were randomly selected as validation watersheds. Two watersheds were randomly selected as calibration watersheds while one was randomly selected as a validation watershed within each of the Dissected Plains and Plains Landforms. The seven calibration watersheds were used to provide the necessary calibrated parameter sets to execute each of the regional approaches, while the four validation watersheds were used to assess the impact of applying each of these approaches to an uncalibrated watershed. Percent Bias (PBIAS) and the Nash Sutcliffe Coefficient of Efficiency (NSE) were used to assess model performance. Test results of this study show that all three methods performed poorly, since the majority of watersheds among each method tested exhibited PBIAS values greater than ±25% and/or NSE values less than 0.50, which were considered to be unsatisfactory in terms of model performance. The average regionalization, nearest neighbor and donor methods resulted in only four (two calibration and two validation), zero and one satisfactory set of simulated watershed results, respectively.The findings from this study indicate that although each watershed was successfully calibrated with NSE values ranging from 0.51 to 0.84, none of the three regionalization methods provided suitable calibration data sets to define parameter values for performing satisfactory simulations on ungaged watersheds across the eastern Nebraska landscape.

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Section: Model Setupmentioning

confidence: 99%

Comparison of three regionalization techniques for predicting streamflow in ungaged watersheds in Nebraska, USA using SWAT model

Liew

Mittelstet

2018

International Journal of Agricultural and Biological Engineering

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“…Climate change, especially continuously rising temperature and changes in precipitation, has induced significant environmental changes around the world, including the changes in water resources that are of critical importance to human society and ecosystems [1][2][3]. Many areas of the world, including China, are currently facing water shortage issues, and will face higher risks of water shortages by the middle of this century due to global warming [4,5].…”

Section: Introductionmentioning

confidence: 99%

Dynamic of Dalinor Lakes in the Inner Mongolian Plateau and Its Driving Factors during 1976–2015

Gao

et al. 2017

Water

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Climate change and increasing human activities have induced lake expansion or shrinkage, posing a serious threat to the ecological security on the Inner Mongolian Plateau, China. However, the pattern of lake changes and how it responds to climate change and revegetation have rarely been reported. We investigated the pattern of lake-area changes in the Dalinor National Nature Reserve (DNR) using Landsat imagery during 1976-2015, and examined its relationship with changes in climate and vegetation factors. The total lake-area in the DNR has decreased by 11.6% from 1976 to 2015 with a rate of −0.55 km 2 year −1 . The largest Dalinor Lake reduced the most (by 32.7 km 2 ) with a rate of −0.79 km 2 year −1 . The air temperature has increased significantly since 1976, with a rate of 0.03 • C year −1 (p < 0.05), while the precipitation slightly decreased during 1976-2015, with a rate of −0.86 mm year −1 . The Normalized Difference Vegetation Index (NDVI) increased by 27.7% from 1976 to 2015, especially after 2001 when vegetation has been promoted greatly as a result of the successful ecological protection and restoration in the Dalinor basin. The decrease in lake-areas for the DNR exhibited a negative correlation with NDVI (r = −0.397, p < 0.05) during 1976-2015. It seems that decreasing precipitation drives the reduction in lake-area, while rising temperature and vegetation greenness accelerated this decreasing trend by increasing evapotranspiration. The continuous lake shrinkage increases the ecological risks to the habitat of birds, causing a challenge to the management in the DNR.

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“…Undoubtedly, the management of water resources will be impacted by climate change and its variability (Gupta et al, 2022; Li & Urban, 2016; Rahaman et al, 2022; Agoh et al, 2021; Zhao & Boll, 2022). One way to illustrate this is to consider a scenario in which a region experiences drought due to a lack of precipitation.…”

Section: Introductionmentioning

confidence: 99%

Transboundary water resources management and food security: An Indonesian perspective

Asdak,

Yulizar

2024

World Water Policy

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Transboundary water resource management is one of the key components of ensuring that water is managed appropriately for a number of objectives, including assisting in food production. Inadequate water management may aggravate social conflict in the near future as precipitation patterns change. This study evaluates long‐term government policies, plans, and initiatives based on their responsibility. Strategic environmental assessment is used as an approach to address problems relating to the transboundary flow of water resources. It takes into account the requirements for integrating environmental constraints into government planning and development programs. To make sure that water resources are functioning correctly from upstream to downstream locations, various levels of government are urged to employ spatial planning based on water resource information. This study uses the Cimanuk watershed area in Indonesia to demonstrate this perspective.

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Water Resource Variability and Climate Change

Cited by 6 publications

References 33 publications

Comparison of three regionalization techniques for predicting streamflow in ungaged watersheds in Nebraska, USA using SWAT model

Comparison of three regionalization techniques for predicting streamflow in ungaged watersheds in Nebraska, USA using SWAT model

Dynamic of Dalinor Lakes in the Inner Mongolian Plateau and Its Driving Factors during 1976–2015

Transboundary water resources management and food security: An Indonesian perspective

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