Hydrological and chemical budgets of a mire pool formed on alluvial lowland of Hokkaido, northern Japan

Kizuka, Toshikazu; Yamada, Hiroyuki; Hirano, Takashi

doi:10.1016/j.jhydrol.2011.02.015

Cited by 8 publications

(3 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lake Akanuma has a surface area of 95,280 m 2 , a maximum depth of 2.1 m, and a mean depth (volume of the water body divided by its surface area) of 1.8 m (Kizuka et al 2011). The hydrological budget of Lake Akanuma is dominated by surface water inflow (18.3 mm day -1 ) and surface water outflow (20.2 mm day -1 ).…”

Section: Study Sites and Samplingmentioning

confidence: 99%

“…The hydrological budget of Lake Akanuma is dominated by surface water inflow (18.3 mm day -1 ) and surface water outflow (20.2 mm day -1 ). The wetland around Lake Akanuma consists mainly of bogs with hummock-hollow microtopographies, with vegetation dominated by peat moss and vascular plants, as described in detail by Kizuka et al (2011). The vertical soil type profiles and microbial activity profiles in the Kushiro Wetland have been described by Senga et al (2015).…”

Section: Study Sites and Samplingmentioning

confidence: 99%

See 1 more Smart Citation

Characterizing the photochemical degradation of aquatic humic substances from a dystrophic lake using excitation-emission matrix fluorescence spectroscopy and parallel factor analysis

et al. 2016

View full text Add to dashboard Cite

Three-dimensional excitation-emission matrix (EEM) fluorescence and parallel factor analysis (PAR-AFAC) were used to monitor composition and reactivity changes caused by the photochemical degradation of aquatic humic substances (AHS) from a dystrophic lake in Kushiro Wetland, Japan. AHS-rich lake water was exposed to three treatments in summer and winter 2014: radiation with the full solar wavelength range, radiation with the [320-nm solar wavelength range, and no solar radiation. Irradiation caused AHS-like peaks to shift to shorter wavelengths in the EEM contour plots, implying that AHS photodegradation caused the formation of lower-molecular-weight fractions or more simply structured components. Three components were identified from PARAFAC analyses: AHS-1 (excitation/emission wavelengths of maxima: \252 and 315 nm/426 nm), AHS-2 (360 and 261 nm/489 nm), and AHS-3 (276 nm/403 nm). These components had different photosensitivities. AHS-1 was most sensitive to full solar radiation, while AHS-2 was most sensitive to [320-nm radiation. More photodegradation of these components occurred in the summer than in the winter, indicating that photodegradation depended on light intensity. AHS-3 was photoresistant. The different characteristics of the components reflected the in situ dynamics of the components. The AHS-3 fluorescence intensity was positively correlated with the dissolved organic carbon concentration but the AHS-1 and AHS-2 fluorescence intensities were not. The EEM-PARAFAC method was found to be a good tool for tracing AHS-like materials in situ and in the laboratory.

show abstract

Section: Study Sites and Samplingmentioning

confidence: 99%

Section: Study Sites and Samplingmentioning

confidence: 99%

Characterizing the photochemical degradation of aquatic humic substances from a dystrophic lake using excitation-emission matrix fluorescence spectroscopy and parallel factor analysis

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Joosten 1999 km marsh Kizuka et al 2008;Chaichana et al 2011 km Kizuka et al 2008Yamada et al unpublished National Research Council 1992Heino 2000Watanabe et al 2000;Kilroy et al 2008Ferone & Devito 2004Kizuka et al 2011Calder et al 1995Legesse et al 2004Ito et al 2009Vanni et al 2011 TN TP km Concentrations for inflow ditch water, bottom pore water, and groundwater respectively stand for the flow-rate-weighted average of all inflow ditches, the average of groundwater located 5 m distant from east and west shorelines, and the value of pore water sampled at 1.5 m depth under the lake bottom. DTN and DTP data are used for rain water, bottom pore water, and ground water in TN-TP plot.…”

Section: Kmmentioning

confidence: 99%

Effects of irrigation on the hydrological and chemical budgets of Lake Miyajima-numa in the Ishikari Peatland, northern Japan

Kizuka

Yamada

Hirano

2012

Ecology and Civil Engineering

Self Cite

View full text Add to dashboard Cite

Abstract:Water chemistry deterioration has become increasingly evident at mire pools with agricultural development occurring in pool catchment areas. Improvement of hydrochemical conditions is urgently necessary for the conservation of such mire pools' ecosystems. We investigated the hydrological and chemical budgets of Lake Miyajimanuma, a Ramsar Convention wetland, which is surrounded by paddy fields in Ishikari Peatland, northern Japan, during its ice-free period in [2007][2008]. Surface water inflow and outflow via ditches dominate its hydrological budget, respectively constituting 88 of total input and 78 of total output. Similarly, chemical budgets including Ca 2 , total nitrogen, and total phosphorus were dominated by ditch inflow and outflow. Chemical constituents of the ditch inflow were derived from mineral-rich and nutrient-rich river water supplied to paddy fields as irrigation water. Therefore, the input fluxes of Ca 2 , total nitrogen, and total phosphorus were much greater than those of a pristine mire pool. Increased input fluxes of chemical constituents induced by irrigation changed the hydrological and chemical budgets of mire pools, which degraded the water chemistry through eutrophication and other processes.

show abstract

Groundwater fluxes in a shallow seasonal wetland pond: The effect of bathymetric uncertainty on predicted water and solute balances

Trigg

Cook

Brunner

2014

Journal of Hydrology

View full text Add to dashboard Cite

Hydrological and chemical budgets of a mire pool formed on alluvial lowland of Hokkaido, northern Japan

Cited by 8 publications

References 41 publications

Characterizing the photochemical degradation of aquatic humic substances from a dystrophic lake using excitation-emission matrix fluorescence spectroscopy and parallel factor analysis

Characterizing the photochemical degradation of aquatic humic substances from a dystrophic lake using excitation-emission matrix fluorescence spectroscopy and parallel factor analysis

Effects of irrigation on the hydrological and chemical budgets of Lake Miyajima-numa in the Ishikari Peatland, northern Japan

Groundwater fluxes in a shallow seasonal wetland pond: The effect of bathymetric uncertainty on predicted water and solute balances

Contact Info

Product

Resources

About