Decadal and seasonal scale changes of an artificial lake environment after blocking tidal flows in the Yeongsan Estuary region, Korea

Lee, Young Geun; An, Kwang-Guk; Ha, Phuc Thi; Lee, Keun‐Young; Kang, Joo‐Hyon; Min, Sung Ran; Lee, Youn Suk; Chang, In Seop; Kim, Kyoung-Woong; Kimj, Joon Ha

doi:10.1016/j.scitotenv.2009.08.031

Cited by 32 publications

(31 citation statements)

References 30 publications

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“…1). It has a basin area of 3,468 km 2 and a length of 136 km [20,21]. The river water is used for drinking, irrigation, industry, and recreation [20].…”

Section: Sampling Sitementioning

confidence: 99%

“…It has a basin area of 3,468 km 2 and a length of 136 km [20,21]. The river water is used for drinking, irrigation, industry, and recreation [20]. The major metropolitan area of Gwangju City, located in the upland region of the Yeongsan River watershed, has been identified as a major source of pollution for this watershed [21].…”

Section: Sampling Sitementioning

confidence: 99%

“…The major metropolitan area of Gwangju City, located in the upland region of the Yeongsan River watershed, has been identified as a major source of pollution for this watershed [21]. Apart from the upper Yeongsan River that drains Gwangju City, most of the Yeongsan River watershed region is agricultural [20]. The average bed slope of the Yeongsan River is very gentle (0.0011) compared with other major rivers in Korea; therefore, sedimentation occurs even in upstream areas, which results in large areas of streambed wetlands (National Wetland Center [NWC], 2010; Fig.…”

Section: Sampling Sitementioning

confidence: 99%

“…As shown in Figure 1, our sampling sites were located in the lower region of the Yeongsan River, downstream from the YED at a distance of 47 km; the surrounding land was primarily agricultural [20]. As also shown in Figure 1, approximately 2.8 km 2 of wetlands is distributed in the upper region (upstream of site 3), and approximately 2.1 km 2 of wetlands is distributed in the lower region (downstream of site 7) along the mainstream (NWC, 2010).…”

Section: Sampling Sitementioning

confidence: 99%

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Bioconcentration of methylmercury in microzooplankton in a temperate river

Kim

Noh

Kim

et al. 2011

Enviro Toxic and Chemistry

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To understand the bioconcentration of methylmercury (MeHg) at the base of the riverine food chain, we determined levels of dissolved organic carbon, microseston, Hg, and MeHg in surface water in relation to the microzooplankton MeHg from Yeongsan River. The spatial distribution of unfiltered Hg (0.29-3.1 ng/L) and dissolved Hg (0.15-0.74 ng/L) closely followed the microseston distribution. The spatial distribution of unfiltered MeHg (0.0078-0.077 ng/L) and dissolved MeHg (0.0069-0.018 ng/L) increased with increasing distance from the river mouth and appeared to arise from the shallow wetlands surrounding the upper riverbanks and then to be transported downstream. The logarithm of the MeHg bioconcentration factor for microzooplankton ranged from 5.3 to 6.0 (5.7 ± 0.18), and for microseston ranged from 4.0 to 5.4 (4.9 ± 0.35). Linear correlation statistics comparing microzooplankton MeHg and river water characteristics revealed that microzooplankton MeHg concentration was most significantly correlated with unfiltered MeHg (r = 0.83) and particulate MeHg (r = 0.80) levels. This result suggests that MeHg in unfiltered river water, which is relatively easy to determine, can be used as a surrogate for MeHg in microzooplankton that may influence MeHg levels in higher-trophic-level organisms.

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“…1). It has a basin area of 3,468 km 2 and a length of 136 km [20,21]. The river water is used for drinking, irrigation, industry, and recreation [20].…”

Section: Sampling Sitementioning

confidence: 99%

Section: Sampling Sitementioning

confidence: 99%

Section: Sampling Sitementioning

confidence: 99%

Section: Sampling Sitementioning

confidence: 99%

See 2 more Smart Citations

Bioconcentration of methylmercury in microzooplankton in a temperate river

Kim

Noh

Kim

et al. 2011

Enviro Toxic and Chemistry

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“…(Kwun et. al, 1990;Lim and Kim, 2001;Yoon et al, 2001;Hwang et al, 2003;Lee et al, 2009) Rainfall ( (Kang, 1993;Lim and Kwun, 1989;KRCC, 2005) (Lim and Kwun, 1989;Kang, 1993;Sung, 2010 …”

Section: Introductionmentioning

confidence: 99%

Evaluation of Practical Application of the Remote Monitoring System for Water Salinity in Estuary Lake During Farming Season

Lee¹,

Hong²,

Kim³

et al. 2014

Korean Journal of Soil Science and Fertilizer

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The remote monitoring system of water salinity was assessed in Wando reclaimed land lake during a farming season in 2009. Increasing of water salinity in this lake used to bring about salt damage on rice plant occasionally. At the early stage of the rice growing period, rice growth was not damaged due to enough rainfall with more than 120 mm from the mid-May to the first ten days of June. Data collection using on-site water salinity measuring sensors every 2 hours and real-time transmission in system were carried out for the experiment. We compared the transmitted values from the sensor system with water sample values collected and analyzed by a local technical office. Salt concentrations measured by sensor in real-time monitoring system were available data. The regression equation between rainfall and water salinity was presented as (water salinity after rainfall) = 0.621×(water salinity before rainfall)×exp(-0.0139×rainfall), (r 2 =0.579, p<0.01). It is suggested that the system is useful for stable farming in the area where farmer use water in reclaimed lakes as an irrigation source.

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Development of Sundarbans through Estuary Management for Augmenting Freshwater Supply, Improved Drainage and Reduced Bank Erosion

Tyagi

Sen

2019

The Sundarbans: A Disaster-Prone Eco-Region

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Decadal and seasonal scale changes of an artificial lake environment after blocking tidal flows in the Yeongsan Estuary region, Korea

Cited by 32 publications

References 30 publications

Bioconcentration of methylmercury in microzooplankton in a temperate river

Bioconcentration of methylmercury in microzooplankton in a temperate river

Evaluation of Practical Application of the Remote Monitoring System for Water Salinity in Estuary Lake During Farming Season

Development of Sundarbans through Estuary Management for Augmenting Freshwater Supply, Improved Drainage and Reduced Bank Erosion

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