Sustainable groundwater management in Kinmen Island

Liu, Chen‐Wuing; Lin, Chao‐Feng; Jang, Cheng‐Shin; Chen, Chan-Po; Chang, Jow‐Ran; Fan, Chia-Ming; Lou, Kuo-Hiang

doi:10.1002/hyp.6171

Cited by 30 publications

(22 citation statements)

References 6 publications

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“…Liu et al 2006). Under the definitions described here, the two approaches differ in that FBM is considered as a pre-emptive management approach, whereas TLM is reactive and based on current conditions.…”

Section: Defining Fbm and Tlmmentioning

confidence: 93%

“…Bekesi et al (2009) concluded that TLM allows for rapid corrective actions to unforeseen coastal aquifer influences, and as such offers a complementary strategy to FBM for modifying groundwater allocation in areas subject to localised over-extraction or adverse natural stresses. Liu et al (2006) devised a TLM method for adjusting pumping based on groundwater level changes on Kinmen Island, southwest Fujen province, China. They applied a three-tier trigger level system: "safe", "low" and "seriously low" groundwater levels, with trigger levels being derived from the average and standard deviation of water level data collected over a period of 28 months.…”

Section: Review Of Coastal Aquifer Management Approachesmentioning

confidence: 99%

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Current Practice and Future Challenges in Coastal Aquifer Management: Flux-Based and Trigger-Level Approaches with Application to an Australian Case Study

Werner

Alcoe

Ordens

et al. 2011

Water Resour Manage

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The control of groundwater abstraction from coastal aquifers is typically aimed at minimizing the risk of seawater intrusion, excessive storage depletion and adverse impacts on groundwater-dependent ecosystems. Published approaches to the operational management of groundwater abstraction from regulated coastal aquifers comprise elements of "trigger-level management" and "flux-based management". 1832 A.D. Werner et al.Trigger-level management relies on measured groundwater levels, groundwater salinities and/or ecosystem health indicators, which are compared to objective values (trigger levels), thereby invoking management responses (e.g. pumping cutbacks). Flux-based management apportions groundwater abstraction rates based on estimates of aquifer recharge and discharge (including environmental water requirements). This paper offers a critical evaluation of coastal aquifer management paradigms using published coastal aquifer case studies combined with a simple evaluation of the Uley South coastal aquifer, South Australia. There is evidence that trigger-level management offers advantages over flux-based approaches through the evaluation of real-time resource conditions and trends, allowing for management responses aimed at protecting against water quality deterioration and excessive storage depletion. However, flux-based approaches are critical for planning purposes, and are required to predict aquifer responses to climatic and pumping stresses. A simplified modelling analysis of the Uley South basin responses to different management strategies demonstrates the advantages of considering a hybrid management approach that includes both trigger-level and flux-based controls. It is recommended that where possible, trigger-level and flux-based approaches be adopted conjunctively to minimize the risk of coastal groundwater degradation and to underpin strategies for future aquifer management and well-field operation.

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Section: Defining Fbm and Tlmmentioning

confidence: 93%

Section: Review Of Coastal Aquifer Management Approachesmentioning

confidence: 99%

Current Practice and Future Challenges in Coastal Aquifer Management: Flux-Based and Trigger-Level Approaches with Application to an Australian Case Study

Werner

Alcoe

Ordens

et al. 2011

Water Resour Manage

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“…The hydraulic conductivity and storage coefficient are appropriately 3 m/day and 0.1-0.2, respectively, obtained from the pumping test (Rechang Consultant Company 2002). Groundwater velocities, estimated using the numerical simulation, range from 9.1 9 10 -3 cm/day (aquifer B) to 3.74 9 10 -1 cm/day (aquifer A) (Liu et al 2006). Groundwater typically moves from mountains to sea, like a radiating shape.…”

Section: Hydrogeological Settingmentioning

confidence: 99%

“…The distribution of flow field was obtained from previously developed flow model MODFLOW-96 (Harbaugh and McDonald 1996). Details see Liu et al (2006). The MT3D was calibrated with the measured nitrate-N concentrations from 16 groundwater monitoring wells with good agreement (Fig.…”

Section: Nitrate Contamination Potentialmentioning

confidence: 99%

Assessing nitrate contamination and its potential health risk to Kinmen residents

Liu

Lin

Jang

et al. 2010

Environ Geochem Health

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Kinmen is located in the southwest of Mainland China. Groundwater supplies 50% of the domestic water use on the island. Residents of Kinmen drink groundwater over the long term because surface water resources are limited. Nitrate-N pollution is found and distributed primarily in the western part of groundwater aquifer whereas saline groundwater is distributed to the northeastern Kinmen. This work applied the DRASTIC model to construct the vulnerability map of Kinmen groundwater. MT3D was then used to evaluate the contamination potential of nitrate-N. The health risk associated with the ingestion of nitrate-N contaminated groundwater is also assessed. The results from DRASTIC model showed that the upland crop and grass land have high contamination potential, whereas the forest, reservoir and housing land have low contamination potential. The calibrated MT3D model inversely determined the high strength sources (0.09-2.74 kg/m(2)/year) of nitrate contaminant located in the west to the north west area and required 2-5 years travel time to reach the monitoring wells. Simulated results of MT3D also showed that both the continuous and instantaneous contaminant sources of nitrate-N release may cause serious to moderate nitrate contamination in the western Kinmen and jeopardize the domestic use of groundwater. The chronic health hazard quotient (HQ) associated with the potential non-carcinogenic risk of drinking nitrate-N contaminated groundwater showed that the assessed 95th percentile of HQ is 2.74, indicating that exposure to waterborne nitrate poses a potential non-cancer risk to the residents of the island. Corrective measures, including protecting groundwater recharge zones and reducing the number of agricultural and non-agricultural nitrogen sources that enters the aquifer, should be implemented especially in the western part of Kinmen to assure a sustainable use of groundwater resources.

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“…For the effective management of high groundwater level aquifer, groundwater level can be used as an index to maintain a safe level of regional groundwater aquifer. Groundwater management index (GMI) which is obtained by the mean and standard deviation of groundwater level from regional (Liu et al 2006). The definition of GMI is shown as follows:…”

Section: Groundwater Level Managementmentioning

confidence: 99%

Management of High Groundwater Level Aquifer in the Taipei Basin

Liu

Chou

Lin

et al. 2010

Water Resour Manage

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Groundwater pumpings have been prohibited by the government since 1970 due to the overexploitation and severe land subsidence in the Taipei Basin. Declining water levels were gradually recovered back. Nowadays, high groundwater levels are developed in the Taipei Basin. This may cause safety problems such as seepage of underground facility, and liquefaction by the strong earthquake jeopardizing millions of people's lives and properties in the metropolitan area of Taipei. To reduce the associated risks, the study aims to formulate a management strategy to rationally reduce the groundwater level declining trend and sustainable utilization of groundwater resources in the Taipei Basin. A hydrogeologic model of Taipei Basin using MODFLOW-96 was setup to evaluate water budget and safe yield of the aquifer. The simulated water budget indicates that the groundwater annual storage increases about 17 million cubic meters in the main (Jingmei) aquifer. The average groundwater safe yield of the Taipei Basin estimated by the Hill method is about 54 million cubic meters per year. Moreover, with consideration of the reduction of liquefaction risks the revised average safe yield is about 126 million cubic meters per year. To effectively use and manage groundwater resources, restriction order on the use of groundwater resources in the Taipei Basin need to be revised. The implementation of groundwater management index coupled with an upper limit

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Sustainable groundwater management in Kinmen Island

Cited by 30 publications

References 6 publications

Current Practice and Future Challenges in Coastal Aquifer Management: Flux-Based and Trigger-Level Approaches with Application to an Australian Case Study

Current Practice and Future Challenges in Coastal Aquifer Management: Flux-Based and Trigger-Level Approaches with Application to an Australian Case Study

Assessing nitrate contamination and its potential health risk to Kinmen residents

Management of High Groundwater Level Aquifer in the Taipei Basin

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