The Effects of Land Use and Climate Change on the Water Yield of a Watershed in Colombia

Villamizar, S. R.; Pineda, Sergio M.; Carrillo, G.

doi:10.3390/w11020285

Cited by 18 publications

(10 citation statements)

References 45 publications

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“…Remote sensing data from Australia's Murray-Darling basin found significant regional variability in water retention, with climate change accounting for 70% of the variability [18]. The combined effects of climate and land-use change also were assessed using SWAT in a small Columbian watershed of less than 200 km 2 [19]; the results indicated that climate and land-use change determine water yield within this watershed. A similar study in a small West African watershed discovered that land cover amplified climate change impacts on water retention [20].…”

Section: Regional Variabilitymentioning

confidence: 98%

“…Distinguishing between the impacts of climate and land cover on water retention is particularly important for adaptive management [17]. Research in this discipline has been carried out in numerous watersheds around the globe, including the analysis of effects of climate and land-use on surface water extent dynamics in Australia's Murray-Darling Basin [18], on the water yield of the Tona watershed [19], on water resources and soil erosion in the Dano catchment in south-western Burkina Faso [20], on the water resources in the eastern Baltic Sea [21], on the combined impacts of future land-use and climate on water resources and quality of the Thames River basin in the southern UK [22], and the analysis of land-use change may exacerbate the climate change impacts on water resources in the Upper Ganges river basin in northern India [23]. All of these studies assessed the independent or combined effects of climate and land-use impacts, but none assessed their contributions to or regional differences in the impacts on water retention services.…”

Section: Introductionmentioning

confidence: 99%

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Regional Impacts of Climate and Land Cover on Ecosystem Water Retention Services in the Upper Yangtze River Basin

Guo

2019

Sustainability

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Water retention is an important factor in ecosystem services, owing to its relationships with climate and land-cover change; however, quantifying the independent and combined impacts of these variables remains a challenge. We use scenario analysis and the InVEST model to assess individual or combined impacts of climate and land cover on water retention in the Upper Yangtze River Basin. Water retention decreased from 1986 to 2015 at a rate of 2.97 mm/10a in response to increasing precipitation (3.94 mm/10a) and potential evapotranspiration (16.47 mm/10a). The rate of water retention change showed regional variability (from 68 to −18 mm/a), with some eastern regions experiencing an increase and most other regions experiencing a decrease. Farmland showed the highest decrease (10,772 km2), with land mainly converted into forest (58.17%) and shrub land (21.13%) from 2000 to 2015. The impact of climate change (−12.02 mm) on water retention generally was greater than the impact of land cover change (−4.14 mm), at the basin scale. Among 22 climate zones, 77.27% primarily were impacted by climate change; 22.73% primarily were impacted by land cover change. Our results demonstrate that both individualistic and integrated approaches toward climate and vegetation management is necessary to mitigate the impacts of climate change on water resources.

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Section: Regional Variabilitymentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Regional Impacts of Climate and Land Cover on Ecosystem Water Retention Services in the Upper Yangtze River Basin

Guo

2019

Sustainability

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“…Under severe emissions, the largest variations are projected during 2050s ranging from −62.2% to 30.4%. Winter water yield projections indicate decrease during the mid-century period and slight increase by end of the century under both emissions scenarios [23].…”

Section: Implication Of Future Water Regimementioning

confidence: 97%

“…Consequently, global mean temperature has been rising 1.5 • C above preindustrial (1850-1900) era [1]. Other key indicators of the critical situation are Sea Level Rise (SLR) and Sea Ice Extent (SIC); both are the direct consequence of greenhouse gas (GHG) increase conservation practices [23]. Marhaento et al [24] studied climate and LUC in a tropical watershed in Indonesia and found intensification in annual stream flow and surface runoff if the drivers combined; the LUC scenarios used in the study were based on extrapolation of trends [24].…”

Section: Introductionmentioning

confidence: 99%

Evaluating Water Balance Variables under Land Use and Climate Projections in the Upper Choctawhatchee River Watershed, in Southeast US

Makhtoumi

Ibeanusi

et al. 2020

Water

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Changes in water balance variables are essential in planning and management. Two major factors affecting these variables are climate change and land use change. Few researches have been done to investigate the combined effect of the land use change and climate change using projections. In this study the hydrological processes in Upper Choctawhatchee River Watershed were modeled using the Soil and Water Assessment Tool (SWAT) to investigate the impacts of climate and land use change. We integrated land use projection based in the Shared Socioeconomic Pathways with future climate data to study the combined effects on Hydrological response of the watershed. Future rainfall and temperature, for two time periods, were obtained using General Climate Models to provide SWAT with the climatic forcing in order to project water balance variables. The simulation was carried out under two radiative forcing pathways of RCP4.5 and RCP6.0. Land use change focused on urbanization dominated the climate changes. Impacts on water balance variables differed seasonally. Results showed surface runoff experienced major changes under both emissions scenarios in some months up to 5 times increase. Among the water balance variables, evapotranspiration (ET) as the least dominant pathway for water loss showed the modest changes with the largest decrease during fall and summer. Projection indicated more frequent extreme behavior regarding water balance during midcentury. Discharge was estimated to increase through the year and the highest changes were projected during summer and fall with 186.3% increase in November under RCP6.0. Relying on rainfall for farming along with reduced agricultural landuse (11.8%) and increased urban area (47%) and population growth would likely make the water use efficiency critical. The model demonstrated satisfactory performance, capturing the hydrologic parameters. It thus can be used for further modelling of water quality to determine the sustainable conservation practices and extreme weather events such as hurricane and tropical storms.

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“…It has strong applicability in predicting future changes in water resources, and it is convenient to use the spatial information provided by remote sensing technology or computer technology to simulate the hydrological effects in many different scenarios (Shang et al, 2019). Therefore, the SWAT model has been used in many areas, like Minnesota, Michigan, and Colombia of the United States (Schomberg et al, 2005;Villamizar et al, 2019), San Pedro watershed of Mexico (Nie et al, 2011), Amur River Basin of Asia (Zhou et al, 2020), and Ganga River Basin of India (Anand et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Using an Improved SWAT Model to Simulate Karst Sinkholes: A Case Study in Southwest China

Zhou

Zhao²,

Cao³

et al. 2022

Front. Environ. Sci.

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Hydrological simulation of the karst area is significant for assessing water resources accurately and exploring the relationship in the hydrologic cycle. However, the existence of sinkholes causes the spatial heterogeneity of aquifers and changes the distribution of surface water as well as groundwater, which makes the traditional hydrogeological model difficult to quantitatively characterize the hydrological processes of the sinkhole. Hence, improving the hydrological model for the karst area is a necessary direction at present. The soil and water assessment tool (SWAT) is one of the most widely used semi-distributed hydrological models right now in the world. In this study, we focused on the upper course of the South Panjiang River and used the pond module of the SWAT model to simulate karst sinkholes, modifying the source code to realize the rapid response to the recharge in karst sinkholes. After the improvement, the surface runoff, especially the peak value of the Xiqiao Hydrological Station at the outlet, has been reduced, while the baseflow of modified subbasins has been increased and the water yield is under a state of water balance. In addition, the model evaluation factor R2 was strengthened from 0.76 to 0.83 and NSE was strengthened from 0.66 to 0.79 of the Xiqiao Hydrological Station during the validation period. The improved model was used to analyze the spatial distribution of hydrological components. Also, it was found there are spatial relations between runoff modulus–slope and baseflow–surface runoff–land use types. The analysis demonstrated that the improved SWAT model could effectively change the hydrological components and simulate the rapid replenishment of karst sinkholes.

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The Effects of Land Use and Climate Change on the Water Yield of a Watershed in Colombia

Cited by 18 publications

References 45 publications

Regional Impacts of Climate and Land Cover on Ecosystem Water Retention Services in the Upper Yangtze River Basin

Regional Impacts of Climate and Land Cover on Ecosystem Water Retention Services in the Upper Yangtze River Basin

Evaluating Water Balance Variables under Land Use and Climate Projections in the Upper Choctawhatchee River Watershed, in Southeast US

Using an Improved SWAT Model to Simulate Karst Sinkholes: A Case Study in Southwest China

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