Development of an Evaluation System for Sustaining Reservoir Functions—A Case Study of Shiwen Reservoir in Taiwan

Chen, Rong‐Song; Tsai, Chan-Ming

doi:10.3390/su9081387

Cited by 13 publications

(3 citation statements)

References 49 publications

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“…The reservoir designed to manage water, it accommodates excess water during the rainy season and provide water during dry season for both of agriculture and household (Chen & Tsai, 2017). One of the aspects that must be examined in reservoir planning is the hydrological analysis.…”

Section: Methodsmentioning

confidence: 99%

Water Supply Potential for Agropolitan Concept

Ernanda

Andriyani

2022

JTEP-L

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One of the obstacles to the development of Tongas District - Probolinggo Regency as an agropolitan area is the Limited of availability of water in Tongas Village. Kelampok village only has technical fields area of 105 hectares (14.45%) and the rest are rain-fed. The goverment of Probolinggo regency plans to develop Kelampok Reservoir. This study aims to research the potential of land and water for development of Kelampok Reservoir as a Water source for agriculture. To develop the Kelampok Reservoir engineering model, required main discharge, the location of the reservoir plan, and flood discharge. The results of the main discharge calculation using tank model had a maximum discharge of 332 L/s in The first decade do March and The discharge si only available for November to May. Hydrologically and geologically, the study area has an average rainfall of 1,430 mm/y with the type of Oldeman Climate classification is D4 and dominated by regosol soil types (96.60%). Kelampok Reservoir is engineered with (i) the full capacity of catchment is 7.103 m3 and the effective capacity is 6,877 m³, (ii) the reservoir has a total width of 10.00 m and an effective width is 9.20 m, and (iii) planned to operate from early July to September (10 decades/10 days) with an discharge output of 789 L/d or 0.913 L/s. Key words: Agropolitan, Discharge, Irrigation, Natural Resource, Reservoir

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Section: Methodsmentioning

confidence: 99%

Water Supply Potential for Agropolitan Concept

Ernanda

Andriyani

2022

JTEP-L

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“…However, there are significant seasonal differences in rainfall, with 78% of rainfall occurring during the wet season (May to October). Due to the short and steep nature of rivers in Taiwan, only about 18% of rainfall is retained annually, with reservoirs playing a crucial role in storing and distributing water resources [12]. To support the development of the HSP, the Baoshan Reservoir (BR) and the Baoshan Second Reservoir (BSR) were constructed to meet the needs of residential and industrial water use [13].…”

Section: Introductionmentioning

confidence: 99%

Impact Assessment of Climate Change on Water Supply to Hsinchu Science Park in Taiwan

Lee,

Lai,

Teng

et al. 2024

Water

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The Hsinchu Science Park (HSP) in Taiwan plays a vital role in the chain of semiconductor production, but water scarcity has been challenging semiconductor manufacturing. The Baoshan Reservoir (BS) and the Baoshan Second Reservoir (BSR) are two major sources of water supply to the HSP. However, the impacts of climate change on the water supply have not been analyzed. In this study, a hydrological model (i.e., SWAT) and an operation model of the BR and the BSR were coupled to assess the climate change impacts on the inflow, outflow, and water storage volume (WSV) of the reservoirs. The simulations were based on the weather data for the RCP2.6, RCP4.5, RCP6.0, and RCP8.5 scenarios of AR5 for the Periods of 2021–2040, 2041–2060, 2061–2060, and 2081–2100 derived from up to 33 GCMs/EMSs. It is found that more intensified global warming would generally result in more apparent rainfall seasonality that is wetter in the wet season and dryer in the dry season and more magnified seasonality in river flow. During the hotspot period of water shortage in the HSP from February to May, future water scarcity is expected to worsen. Among the 16 combinations of scenarios and Periods, 13 indicate lower WSV in the future compared to the Baseline. The annual mean number of ten-day periods with WSV lower than the operation rule curve ranges from 4.84 to 6.95 ten-day periods, higher than the Baseline of 4.81 ten-day periods. Overall, RCP6.0 has the most significant impact on the study area, with the highest annual economic loss occurring during the 2041-2060 period, reaching USD 1 billion (~2.37% of the 2023 annual production value) for the HSP. This study also provides a three-month cumulative rainfall threshold as an operational warning indicator for the HSP. Our assessment results indicate that future water supply to the HSP should be a serious concern for stabilizing the manufacturing processes and hence the global semiconductor component supply.

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“…A reservoir is formed by constructing a dam across the river, providing freshwater storage space. For sustainable development of water resources, the reservoir storage space can be considered a natural resource that stores fresh water for multiple purposes such as irrigation, water supply, power generation, recreation, and flood control [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Reservoir Sediment Management and Downstream River Impacts for Sustainable Water Resources—Case Study of Shihmen Reservoir

Lee

Lai

Takemon

2022

Water

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Sustainable water resources of reservoirs depend on preserving the valuable storage capacity. Sediment management is a crucial task in reservoir operations. Extreme floods caused by typhoon events have brought a massive amount of sediments from the watershed of Shihmen Reservoir in Taiwan. In the case study of Shihmen Reservoir, the primary purpose of the sediment management strategies is to minimize sediment deposition and recover reservoir capacity. Two assessment indexes, the capacity–inflow ratio (CIR) and the capacity–sediment ratio (CSR) are investigated to provide a feasible assessment of desilting techniques. Three desilting projects have been planned and implemented in progress, including one modified power plant penstock and two desilting tunnels. Without effective sediment management strategies, the projected storage capacity may drop to 32.9% of the initial storage capacity in the next fifty years. On the other hand, if sediment management is implemented as per the project schedule, 70.3% of the initial storage capacity may be retained, enabling the provision of sustainable water supplies to meet projected water demands. In investigating the impacts caused by the desilting operations, the floodwater level and riverbed variations along the downstream river of the dam are simulated by the hydromorphological model. From simulated results, the downstream river morphology may adjust toward the equilibrium state under the long-term desilting operations of Shihmen Reservoir. Although relatively high sediment concentration is released during the desilting operation, it decays gradually along the downstream river. In addition, riverbed deposition does not significantly affect the floodwater level caused by the increment of riverbed elevation in desilting operations.

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Development of an Evaluation System for Sustaining Reservoir Functions—A Case Study of Shiwen Reservoir in Taiwan

Cited by 13 publications

References 49 publications

Water Supply Potential for Agropolitan Concept

Water Supply Potential for Agropolitan Concept

Impact Assessment of Climate Change on Water Supply to Hsinchu Science Park in Taiwan

Reservoir Sediment Management and Downstream River Impacts for Sustainable Water Resources—Case Study of Shihmen Reservoir

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