Assessment of climate change and its impact on hydrological regimes and biomass yield of a tropical river basin

Mandal, Uday; Sena, D.R.; Dhar, Anirban; Panda, Sudhindra N.; Adhikary, Partha Pratim; Mishra, P. K.

doi:10.1016/j.ecolind.2021.107646

Cited by 31 publications

(11 citation statements)

References 45 publications

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“…SWAT-CUP (Calibration and Uncertainty Programs) integrates the SUFI-2 (Sequential Uncertainty Fitting version 2) algorithm, PSO (Particle Swarm Optimization) algorithm, GLUE (Generalized Likelihood Uncertainty Estimation) algorithm, ParaSOL (Parameter Solution) algorithm, and MCMC (Markov Chain Monte Carlo) algorithm. In this study, the SUFI-2 algorithm is used for automatic calibration of the SWAT model (Yang et al, 2008;Mandal et al, 2021). The SUFI-2 algorithm takes better account of the model uncertainty and is widely used in the performance evaluation of hydrological simulations because it requires fewer parameters to be calculated during the calibration process than other algorithms (Yang et al, 2008;Dosdogru et al, 2020).…”

Section: Research Datamentioning

confidence: 99%

Impacts of Climate Change and Land Use/Cover Change on Regional Hydrological Processes: Case of the Guangdong-Hong Kong-Macao Greater Bay Area

Tan

Liu

Tian

et al. 2022

Front. Environ. Sci.

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Climate change and land use/cover change (LUCC) have been widely recognized as the main driving forces that can affect regional hydrological processes, and quantitative assessment of their impacts is of great importance for the sustainable development of regional ecosystems, land use planning and water resources management. This study investigates the impacts of climate change and LUCC on variables such as streamflow (SF), soil moisture (SM) and evapotranspiration (ET) in the Guangdong-Hong Kong-Macao Greater Bay Area (GBA) by using Soil and Water Assessment Tools (SWAT) model under different scenarios during 1979–2018. The results show that the simulation performances were overall good, with Nash-Sutcliffe Efficiency Coefficient (NSE) and coefficient of determination (R2) greater than 0.80 for the monthly-scale SF calibration and validation. According to the results of trend and change point tests of meteorological series, the baseline period (1979–1997) and the interference period (1998–2018) were determined. Interestingly, other land use types were basically converted to urban land, leading to a rapid urbanization in the GBA. Compared with the SF values of the eight estuaries of the Pearl River Basin in the baseline period, both climate change and LUCC has led to the decrease in the SF values in the interference period, and the combined effect of climate change and LUCC was slightly greater than their individual effect. Overall, climate change and LUCC both have important impacts on regional hydrological processes in the GBA.

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Section: Research Datamentioning

confidence: 99%

Impacts of Climate Change and Land Use/Cover Change on Regional Hydrological Processes: Case of the Guangdong-Hong Kong-Macao Greater Bay Area

Tan

Liu

Tian

et al. 2022

Front. Environ. Sci.

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“…25 At the meantime, climate change also played important role in hydrological condition. For example, in the Subarnarekha River basin, Mandal et al 26 predict that climate change will cause an increase in runoff in the near future. In the Blue Nile basin, climate change may cause a reduction of total water yield and a rise in potential evapotranspiration.…”

Section: Introductionmentioning

confidence: 99%

“…At the meantime, climate change also played important role in hydrological condition. For example, in the Subarnarekha River basin, Mandal et al 26 . predict that climate change will cause an increase in runoff in the near future.…”

Section: Introductionmentioning

confidence: 99%

A framework for assessing the impacts of land‐use/cover change and climate change on wheat productivity under 1.5 and 2.0 °C warming at watershed scale

Sun,

Wang

2024

J Sci Food Agric

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BackgroundIrrigation is used extensively to enhance grain production and ensure food security. Many studies have used crop models and global climate models to study the variation of irrigated crop yield in the context of climate change. But most considered the influence of direct climate change but neglected the influence of irrigation water availability, which is affected by land‐use/cover change (LUCC) and indirect climate change, on irrigated crop yield. This study therefore developed a framework including Patch‐generating Land Use Simulation model, Soil and Water Assessment Tool, Agricultural Production Systems sImulator Model, and global climate models for exploring the impacts of LUCC, direct climate change, and indirect climate change on wheat yield in a typical watershed.ResultsBoth LUCC and climate change caused increased runoff from October to May, and thus increased the irrigation water availability, by 51.6 mm and 30.7 mm per growing season under 1.5°C and 2.0°C warming, respectively. The combined influence of LUCC, direct, and indirect climate change increased wheat yield by about 18.5% and 15.5% in the context of 1.5°C and 2.0°C warming, respectively. The relative contribution of LUCC, indirect climate change and direct climate change to yield was 4.7%, 41.2%, and 54.1% under 1.5°C warming, and 13.1%, 28.7%, and 58.2% under 2.0°C warming, respectively.ConclusionWe suggest that changes in irrigation water availability should be considered from a watershed perspective when simulating the influence of climate change on crop yield, especially regional crop production estimation.This article is protected by copyright. All rights reserved.

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“…Many scholars belonging to different geophysical domains have studied the consequences of climate change. For example, here are some reviews of relevant research in recent times (17)(18)(19)(20)(21) . However, none of these research works represented a study on seasonal water availability.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Impacts of Climate Change on Varied River-Flow Regimes of Peninsular India

Veerabhadrannavar¹,

Venkatesh²

2022

IJST

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Objectives: Precipitation is a major component of the hydrological cycle. Precipitation varies in intensity throughout time and space. The discharge at the outlet of the catchment is directly proportional to the precipitation received in the catchment. The current research looks at the precipitation as well as discharge patterns in the Sagar and Kokkarne catchments in the Western Ghats of Karnataka, India. Methods: In the present research, the soil water assessment tool (SWAT) has been applied to monitor and quantify the streamflow of the Sagar and Kokkarne catchments. Precipitation and discharge analysis for the period of 2021-2050 for both of the catchments is carried out. The seasonal and yearly discharge patterns of the catchments were studied using the Coordinated Regional Downscaling Experiment-South Asia data for the RCP 4.5 scenario for the period 2021-2050. Findings: During the Southwest monsoon and Northeast Monsoon, about 81.44 % and 14.22 % of the precipitation in Sagar catchment and about 87.34 % and 6.93 % of the precipitation in Kokkarne catchment were obtained respectively. The contribution of the Southwest Monsoon in both the catchment is greatest, followed by the Northeast monsoon. During the period 2021-2050, less than 80 % probability of discharge is expected for 23 years and more than 20 % probability of discharge is expected for 4 years. The maximum discharge expected in Sagar and Kokkarne catchments are 16.96 m 3 /sec and 213.87 m 3 /sec respectively. Novelty: The patterns of the precipitation and discharge of two different catchments on each side of the Western Ghats of Karnataka are compared in the current study to understand the impact of climate change on catchment hydrology in these regions.

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Assessment of climate change and its impact on hydrological regimes and biomass yield of a tropical river basin

Cited by 31 publications

References 45 publications

Impacts of Climate Change and Land Use/Cover Change on Regional Hydrological Processes: Case of the Guangdong-Hong Kong-Macao Greater Bay Area

Impacts of Climate Change and Land Use/Cover Change on Regional Hydrological Processes: Case of the Guangdong-Hong Kong-Macao Greater Bay Area

A framework for assessing the impacts of land‐use/cover change and climate change on wheat productivity under 1.5 and 2.0 °C warming at watershed scale

Assessment of Impacts of Climate Change on Varied River-Flow Regimes of Peninsular India

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