Investigation of the probability of concurrent drought events between the water source and destination regions of China's water diversion project

Liu, Xiaomang; Luo, Yuzhou; Yang, Tiantian; Liang, Kang; Zhang, Minghua; Liu, Changming

doi:10.1002/2015gl065904

Cited by 69 publications

(47 citation statements)

References 37 publications

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“…The behavior and responses of the sending systems are IBWTP construction projects, including the engineering required for dam heightening and strengthening, source-water diversion projects, water quality management, and water-source protection. The states and impacts consist of reducing the risk of flooding, drought, and threats to biodiversity [25,26].…”

Section: Sending Systemsmentioning

confidence: 99%

Impact of Inter‐Basin Water Transfer Projects on Regional Ecological Security from a Telecoupling Perspective

et al. 2016

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Abstract:Inter-basin water transfer projects (IBWTPs) offer one of the most important means to solve the mismatch between supply and demand of regional water resources. IBWTPs have impacts on the complex ecosystems of the areas from which water is diverted and to which water is received. These impacts increase damage or risk to regional ecological security and human wellbeing. However, current methods make it difficult to achieve comprehensive analysis of the impacts of whole ecosystems, because of the long distance between ecosystems and the inconsistency of impact events. In this study, a model was proposed for the analysis of the impacts of IBWTPs on regional ecological security. It is based on the telecoupling framework, and the Driver-Pressure-State-Impact-Response (DPSIR) model was used to improve the analysis procedure within the telecoupling framework. The Middle Line of the South-to-North Water Diversion Project was selected as a case study to illustrate the specific analysis procedure. We realized that information sharing is a key issue in the management of regional security, and that the ecological water requirement, in the form of a single index, could be used to quantitatively assess the impacts on ecological security from IBWTPs.

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Section: Sending Systemsmentioning

confidence: 99%

Impact of Inter‐Basin Water Transfer Projects on Regional Ecological Security from a Telecoupling Perspective

et al. 2016

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“…Due to the climate change and other causes, there is an "increasing concurrent drought events" that occurred in China challenging China's water management and grand water diversion project [24]. Under such general context, both Yunnan and the other southwest provinces have already suffered from severe water shortage (engineering shortage) during normal regular times, not to mention the dry seasons.…”

Section: Ecological Compensation Mechanism (Ecm)mentioning

confidence: 99%

Accelerating Sustainability by Hydropower Development in China: The Story of HydroLancang

Zhang

2017

Sustainability

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Sustainable development is a shared responsibility. Accelerating sustainability of water-energy-people nexus and building a common awareness of issues pertaining to sustainable development are essential for any sort of success in this direction. Hydropower has been a useful sustainable energy for development, yet highly controversial. This paper reviews the overall situation of hydropower development and China's energy reforms and policies, accompanied with a case study of hydropower development the Lancang River by the HydroLancang, aiming to illustrate the two opposite sides of hydropower development-economy and environment. The paper concludes with a neutral view of hydropower as the necessary facilitator for development. Water is a shared responsibility. Hydropower might not be the optimum solution to eliminate the tension between human demand of energy and finite natural resource and the rising pressure of climate change worldwide, but it serves well as an "Electricity Bridge" before better alternatives become available. This is a more balanced view of hydropower rather than two extreme viewpoints that present themselves: on the one hand, exaggerated claims of the human power to tame the wild river, and, on the other hand, the idealistic fantasy of preserving nature by abandoning all human activity.

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“…The Danjiangkou reservoir is the water source for the central route of China's South-to-North Water Transfer Project, which plays a critical role in water supply in North China Plain (Figure 1b). This largest water transfer infrastructure is designed to transfer 13 billion m 3 yr −1 of water from Danjiangkou reservoir (water source region) to the North China Plain (water destination region) since December 2014 [40]. For better management of Danjiangkou reservoir, it is of critical importance to improve the accuracy of long-term streamflow forecasts in the UHRB.…”

Section: Study Catchmentmentioning

confidence: 99%

Comparison of Precipitation and Streamflow Correcting for Ensemble Streamflow Forecasts

Jiang

Lei

et al. 2018

Water

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Meteorological centers constantly make efforts to provide more skillful seasonal climate forecast, which has the potential to improve streamflow forecasts. A common approach is to bias-correct the general circulation model (GCM) forecasts prior to generating the streamflow forecasts. Less attention has been paid to the issue of bias-corrected streamflow forecasts that were generated by GCM forecasts. This study compares the effect of bias-corrected GCM forecasts and bias-corrected streamflow outputs on the improvement of streamflow forecast efficiency. Based on the Upper Hanjiang River Basin (UHRB), the authors compare three forecasting scenarios: original forecasts, bias-corrected precipitation forecasts and bias-corrected streamflow forecasts. We apply the quantile mapping method to bias-correct precipitation forecasts and the linear scaling method to bias-correct the original streamflow forecasts. A semi-distributed hydrological model, namely the Tsinghua Representative Elementary Watershed (THREW) model, is employed to transform precipitation into streamflow. The effects of bias-corrected precipitation and bias-corrected streamflow are assessed in terms of accuracy, reliability, sharpness and overall performance. The results show that both bias-corrected precipitation and bias-corrected streamflow can considerably increase the overall forecast skill in comparison to the original streamflow forecasts. Bias-corrected precipitation contributes mainly to improving the forecast reliability and sharpness, while bias-corrected streamflow is successful in increasing the forecast accuracy and overall performance of the ensemble forecasts.

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Investigation of the probability of concurrent drought events between the water source and destination regions of China's water diversion project

Cited by 69 publications

References 37 publications

Impact of Inter‐Basin Water Transfer Projects on Regional Ecological Security from a Telecoupling Perspective

Impact of Inter‐Basin Water Transfer Projects on Regional Ecological Security from a Telecoupling Perspective

Accelerating Sustainability by Hydropower Development in China: The Story of HydroLancang

Comparison of Precipitation and Streamflow Correcting for Ensemble Streamflow Forecasts

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