Impact of rainfall variability and anthropogenic activities on streamflow changes and water stress conditions across Tapi Basin in India

Sharma, Priyank J.; Patel, P. L.; Jothiprakash, V.

doi:10.1016/j.scitotenv.2019.06.097

Cited by 74 publications

(23 citation statements)

References 46 publications

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“…The effect caused by anthropogenic activities on runoff variability was 37% in the upstream and 84% in the downstream of the DRB. Sharma et al described that the human disturbances played a major role in declining runoff trends in the Tapi Basin in the West Central India, contributing a roughly 68-99% decline in the total runoff compared to rainfall variability, which contributed a roughly 1-32% decrease in total runoff [34]. Chang et al [18] confirmed that in the Weihe River Basin in China, anthropogenic disturbances have a stronger influence on catchment runoff than other factors, which would be caused by the climate variability.…”

Section: Discussionmentioning

confidence: 99%

Quantifying the Relative Contribution of Climate Change and Anthropogenic Activities on Runoff Variations in the Central Part of Tajikistan in Central Asia

Gulahmadov

Chen

Gulakhmadov

et al. 2021

Land

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Quantifying the relative contribution of climate change and anthropogenic activities to runoff alterations are essential for the sustainable management of water resources in Central Asian countries. In the Kofarnihon River Basin (KRB) in Central Asia, both changing climate conditions and anthropogenic activities are known to have caused changes to the hydrological cycle. Therefore, quantifying the net influence of anthropogenic contribution to the runoff changes is a challenge. This study applied the original and modified Mann–Kendall trend test, including the Sen’s slope test, Pettitt’s test, double cumulative curve, and elasticity methods. These methods were applied to determine the historical trends, magnitude changes and change points of the temperature, precipitation, potential evapotranspiration, and runoff from 1950 to 2016. In addition, the contributions of climate change and anthropogenic activities to runoff changes in the KRB were evaluated. The trend analysis showed a significant increasing trend in annual temperature and potential evapotranspiration, while the annual precipitation trend showed an insignificant decreasing trend during the 1950–2016 time period. The change point in runoff occurred in 1986 in the upstream region and 1991 in the downstream region. Further, the time series (1950–2016) is separated into the prior impacted period (1950–1986 and 1950–1991) and post impacted period (1987–2016 and 1992–2016) for the upstream and downstream regions, respectively. During the post impacted period, climate change and anthropogenic activities contributed to 87.96% and 12.04% in the upstream region and 7.53% and 92.47% in the downstream region of the KRB. The results showed that in runoff changes, the anthropogenic activities played a dominant role in the downstream (97.78%) and the climate change impacts played a dominant factor in the upstream region (87.96%). In the land-use type changes, the dominant role was played by construction land, which showed that the area from 248.63 km2 in 1990 increased to 685.45 km2 (175.69%) in 2015. These findings suggest that it is essential to adopt effective steps for the sustainable development of the ecological, hydrological, and social order in the KRB in Central Asia.

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Section: Discussionmentioning

confidence: 99%

Quantifying the Relative Contribution of Climate Change and Anthropogenic Activities on Runoff Variations in the Central Part of Tajikistan in Central Asia

Gulahmadov

Chen

Gulakhmadov

et al. 2021

Land

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“…In recent years, due to the frequent variations of water resources and the occurrence of disaster, research evaluating the hydrological response to climate change and human activities has received increased attention. Many scholars have begun to explore this issue from different perspectives [11][12][13][14][15][16]. Hydrological models, empirical statistics, and the elasticity method have been commonly used to assess climate and human factors affecting streamflow changes.…”

Section: Introductionmentioning

confidence: 99%

Impact of Climate Change and Human Activities on Streamflow Variations Based on the Budyko Framework

Lee

Yeh

2019

Water

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In recent years, the influence of climate change and human activity on the global environment have become a concern. It is essential to better understand the hydrologic environment to evaluate water availability and related issues. In this study, we perform a trend and breakpoint analysis on streamflow time series in the Lanyang, Keelung, Dahan, Fengshan, Youluo and Shangping River Basins in northern Taiwan. Furthermore, we apply the Budyko–Fu equation and the Budyko–Mezentsev–Choudhury–Yang equation to evaluate the elasticity of streamflow with respect to climate factors and the catchment characteristics parameter. We discuss the sensitivity of streamflow to climate factors (precipitation and potential evapotranspiration), as well as sensitivity to human activities such as land use changes. We detected breakpoints in the streamflow time series for the Lanyang and Keelung rivers in in 1993 and 1990, respectively. The streamflow of Lanyang River increased by 32.50% during the variation period (1993–2017), with 109.00% of the variation caused by non-climate factors. The Keelung River’s streamflow was reduced by 18.11% during the variation period (1990–2017), and the dominant factor was climate change, accounting for 71.53% of the reduction. Sensitivity analysis showed that precipitation changes were the most sensitive factor of streamflow variation. For every 1% increase in precipitation, the streamflow would increase by 1.05% to 1.37%. These results could serve as a reference for the sustainable development of water resources and territorial policies in northern Taiwan.

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“…The unpredicted rainfall, abrupt drought or heat waves makes it quite difficult to plan for water availability on one hand, while on the other lower or scanty rainfall reduces water levels in rivers, ponds and reservoirs across the country. During the first half of year 2018, a total of 91 major reservoirs in India recorded 32% drop in their water capacity [16]. These all scenarios indicate the need to understand potential impacts of climate unpredictability on water dynamics.…”

Section: Climate Unpredictabilitymentioning

confidence: 99%

Ensuring Water Availability in Future through Revival of Indian Traditional Water Culture

Singh¹,

Pandey²,

Goswami³

2022

Environmental Management - Pollution, Habitat, Ecology, and Sustainability

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After the recurrent spells of weak monsoons, a big part of the country’s population, are affected by a severe drought obliging India to walk towards a water-stressed future. The drought has dried up wells and other water reservoirs already stressed by overuse resulting into crop failure to a reasonable extent of more than 60 per cent. The current water management systems particularly in rural areas are poorly equipped to deal with the issue in significant part because they do not promote distributed water collection, water conservation, and water reuse. Providentially, a combination of often forgotten traditional water practices and more recent innovations in water use and management can help resolve this growing water crisis. These include rainwater capture, water recycling and reuse, and innovative technologies to purify water. India’s history is witness to how well-planned cities of our ancient civilization were equipped with outstanding systems of water harvesting and drainage. These ancient structures synergized with well validated water practices were the strong support systems during the times when the modern infrastructural marvels did not exist, but they were more than efficient in managing the water resources even at the time. Today the traditional water practices and ancient but ignored water sources of the country are yearning to discharge the ancient traditions to revive the glorious history of their past for the dire need of the hour. If water strategists aim to spread the message of water conservation to the common people and want to ensure that every drop of water is conserved, then the proven and scientifically validated Indian traditional water culture will have to be revived. Coincidently, customary water bodies have always been subject of reverence for Indians, reviving these traditional water bodies by involving locals could be a strategy that every region needs to adopt. Stepping up these revival options will indispensably require change in legal and regulatory framework but will perceptibly offer policy makers a better chance to meet present demands and future needs in an increasingly water-constrained India.

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Impact of rainfall variability and anthropogenic activities on streamflow changes and water stress conditions across Tapi Basin in India

Cited by 74 publications

References 46 publications

Quantifying the Relative Contribution of Climate Change and Anthropogenic Activities on Runoff Variations in the Central Part of Tajikistan in Central Asia

Quantifying the Relative Contribution of Climate Change and Anthropogenic Activities on Runoff Variations in the Central Part of Tajikistan in Central Asia

Impact of Climate Change and Human Activities on Streamflow Variations Based on the Budyko Framework

Ensuring Water Availability in Future through Revival of Indian Traditional Water Culture

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