Impact of environmental change on runoff in a transitional basin: Tao River Basin from the Tibetan Plateau to the Loess Plateau, China

Sun, Long; Wang, Yueyang; Zhang, Jianyun; Yang, Qinli; Bao, Zhenxin; Guan, Xiaoxiang; Guan, Tiesheng; Chen, Xin; Wang, Guoqing

doi:10.1016/j.accre.2020.02.002

Cited by 20 publications

(11 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Taohe River originates in the north of the Xiqing mountains in Qinghai Province [14] , flows from west to east through Minxian County to the north, and reaches Yongjing County to Liujiaxia Reservoir [15] , with a total length of 673 km and a total basin area of 25527 km 2 . Figure . 1 shows the water system map of the Taohe River basin [16][17] .…”

Section: Study Areamentioning

confidence: 99%

Comprehensive influence of water resources development and utilization on ecological environment in Taohe River basin

Ma,

Cheng,

Wang

et al. 2023

Second International Conference on Geographic Information and Remote Sensing Technology (GIRST 2023)

View full text Add to dashboard Cite

Section: Study Areamentioning

confidence: 99%

Comprehensive influence of water resources development and utilization on ecological environment in Taohe River basin

Ma,

Cheng,

Wang

et al. 2023

Second International Conference on Geographic Information and Remote Sensing Technology (GIRST 2023)

View full text Add to dashboard Cite

“…The water cycle and water resources are widely affected by climate change and human activities (Guan et al, 2021; IPCC, 2021; Sun et al, 2019). In this context, global river runoff has changed significantly during the last several decades (Shi et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Attribution analysis of the spatiotemporal variation in water balance in a typical semiarid basin in northern China

Wen

Tang

et al. 2022

Hydrological Processes

View full text Add to dashboard Cite

Climate change and anthropogenic factors have significantly impacted hydrological regimes, especially in semiarid regions. Using the trend-free pre-whitening Mann-Kendall (TFPW-MK) test and linear regression, trends of precipitation, temperature, runoff, and water balances from different spatiotemporal scales were analysed during the past sixty years in the Upper Yongding River Basin (UYRB). Based on the Choudhury-Yang equation, the contributions of climate change and human activities to runoff variation were further quantified in five mountainous catchments, and the actual effects of climate change and human activities on the water balance in the whole UYRB were also discussed. The results suggest that the UYRB has become much warmer and drier. The lower annual precipitation and intensity in summer were directly attributed to runoff reductions. Intra-annual scale analyses of meteorological, hydrological and biological responses helped the comprehensive interpretation of the runoff trends. Human activities, including agricultural irrigation, were the main causes for runoff reduction, especially in the middle and lower reaches, and the contribution of human activities increased gradually in recent decades. The water balance changed drastically temporally, with the precipitation being converted less to runoff and more to evaporated fractions, which was also due to the second order effects of climate change and vegetation improvement. It is suggested that low water-consumption plant species and the related water-saving techniques in agriculture and afforestation should be introduced for the sustainable development in the similar regions.

show abstract

“…Climate change is a matter of concern for hydrologists, climatologists, environmentalists, and agronomists as it is anticiapted to have and increasingly serious impact on water resources, infrastructure, agriculture, biodiversity and ecosystem functioning, and human health [5][6][7][8][9]. Although climate change is experienced globall, the degree of its impact varies considerably from region to region [10,11].…”

Section: Introductionmentioning

confidence: 99%

Impact of Climate Change on Water Resources and Crop Production in Western Nepal: Implications and Adaptation Strategies

Risal

Urfels²,

Srinivasan

et al. 2022

Hydrology

View full text Add to dashboard Cite

Irrigation-led farming system intensification and efficient use of ground and surface water resources are currently being championed as a crucial ingredient for achieving food security and reducing poverty in Nepal. The potential scope and sustainability of irrigation interventions under current and future climates however remains poorly understood. Potential adaptation options in Western Nepal were analyzed using bias-corrected Regional Climate Model (RCM) data and the Soil and Water Assessment Tool (SWAT) model. The RCM climate change scenario suggested that average annual rainfall will increase by about 4% with occurrence of increased number and intensity of rainfall events in the winter. RCM outputs also suggested that average annual maximum temperature could decrease by 1.4 °C, and average annual minimum temperature may increase by 0.3 °C from 2021 to 2050. Similarly, average monthly streamflow volume could increase by about 65% from March–April, although it could decrease by about 10% in June. Our results highlight the tight hydrological coupling of surface and groundwater. Farmers making use of surface water for irrigation in upstream subbasins may inadvertently cause a decrease in average water availability in downstream subbasins at approximately 14%, which may result in increased need to abstract groundwater to compensate for deficits. Well-designed irrigated crop rotations that fully utilize both surface and groundwater conversely may increase groundwater levels by an average of 45 mm from 2022 to 2050, suggesting that in particular subbasins the cultivation of two crops a year may not cause long-term groundwater depletion. Modeled crop yield for the winter and spring seasons were however lower under future climate change scenarios, even with sufficient irrigation application. Lower yields were associated with shortened growing periods and high temperature stress. Irrigation intensification appears to be feasible if both surface and groundwater resources are appropriately targeted and rationally used. Conjunctive irrigation planning is required for equitable and year-round irrigation supply as neither the streamflow nor groundwater can provide full and year-round irrigation for intensified cropping systems without causing the degradation of natural resources.

show abstract

Impact of environmental change on runoff in a transitional basin: Tao River Basin from the Tibetan Plateau to the Loess Plateau, China

Cited by 20 publications

References 37 publications

Comprehensive influence of water resources development and utilization on ecological environment in Taohe River basin

Comprehensive influence of water resources development and utilization on ecological environment in Taohe River basin

Attribution analysis of the spatiotemporal variation in water balance in a typical semiarid basin in northern China

Impact of Climate Change on Water Resources and Crop Production in Western Nepal: Implications and Adaptation Strategies

Contact Info

Product

Resources

About