Model development for nutrient loading from paddy rice fields

Chung, Soo Young; Kim, Hyeon Soo; Kim, Jin-Soo

doi:10.1016/s0378-3774(03)00078-7

Cited by 60 publications

(29 citation statements)

References 14 publications

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“…Most of them are field scale models such as PADDIMOD [3], GLEAMS-PADDY [4], RICEWQ [5], and the nitrogen balance model [6]. Some researchers developed watershed scale models to simulate water and pollutant loading from mixed watershed including paddy rice field.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Water Budget Components in Paddy Rice Field under the Asian Monsoon Climate: Application of HSPF-Paddy Model

Kim

Kim²,

Jeon

2014

Water

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Abstract:The HSPF-Paddy model was applied to the Bochung watershed in Korea to compare water budget components by the land use types under the Asian monsoon climate. The calibration of HSPF-Paddy during 1992-2001 with PEST, a package program to optimize HSPF, and validation during 1985-1991 were carried out. The model efficiencies for monthly stream flow are 0.85 for calibration and 0.84 for validation. The simulation of annual mean runoff met the criteria of water budget analysis with the acceptable error level (less than 10 percent mean error). The simulation of the movement of water from paddy rice field to watershed was successful, and application of HSPF-Paddy coupled with PEST was able to improve accuracy of model simulation with reduced time and efforts for model calibration. The results of water budget analysis show that most of the outflow (86%) for the urban area occurred through surface runoff, showing the highest rate among the land use types compared. Significant amounts of water are irrigated to paddy rice fields, and the runoff depth as well as evapotranspiration from paddy rice field is higher than other land use types. Hydrological characteristic of paddy rice field is that most of water movement occurred at the surface area, resulting from the low infiltration rate and manning's coefficient, as well as ponded water throughout the growing season. Major impact on input and output of water were precipitation and runoff, respectively, influenced by an Asian monsoon climate.

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Section: Introductionmentioning

confidence: 99%

Characteristics of Water Budget Components in Paddy Rice Field under the Asian Monsoon Climate: Application of HSPF-Paddy Model

Kim

Kim²,

Jeon

2014

Water

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“…Water balance components were computed and analyzed in a previous study by Aschonitis et al [37] using the GLEAMS-PADDY model [28], which was modified to include algae growth in rice fields. The model was applied for the same experimental field at the same growing season, in order to assess the uptake of major nutrients by algae in the floodwater, the inflow by irrigation and the losses by runoff of N, P, Ca, Mg, K, Na.…”

Section: Water Balance Componentsmentioning

confidence: 99%

“…The development and application of models which describe salinity components (anions-cations dynamics) in rice fields, remain a great challenge even though many have been developed to describe the water, nutrients (nitrogen, phosphorus) and pesticides transport under these conditions [12,[25][26][27][28][29][30][31][32][33][34][35][36][37]. Methods based on water budget approaches in combination with the monitoring of salinity are common tools to analyze soil salinity components in rice fields [38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Temporal Variation of Soil Salinity during the Growing Season in a Flooded Rice Field of Thessaloniki Plain-Greece

et al. 2015

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“…The objective of the study by Chung et al (2003) was to develop a model of groundwater loading effects of agricultural management systems in paddy fields. They modified the Groundwater Loading Effects of Agricultural Management Systems (GLEAMS) model which is used for uplands.…”

Section: Modeling and Case Studiesmentioning

confidence: 99%

Environmental Effects of Irrigation in Arid and Semi-Arid Regions

Fernández-Cirelli

Arumí²,

Rivera³

et al. 2009

Chilean J. Agric. Res.

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This article reviews the state of the art with respect to the environmental effects of irrigated agriculture on water and soil quality in arid and semi-arid regions on a field scale. Information is scarce and fragmentary. Examples in selected areas of other arid and semi-arid regions in the world clearly show the importance of studying the environmental impact of irrigation practices on water and soil quality. Studies mainly refer to waterlogging and salinization. As regards agrochemicals, fertilizers have been taken into account through nitrate leaching. The impact of micropollutants such as pesticides and heavy metals on water and soil quality is studied mainly by modeling. Pharmaceutical compounds emerge as pollutants when wastewater is used for irrigation without any previous treatment, situation which is now the object of new studies. There is an obvious need to study in-depth knowledge related to appropriate technologies for the use, treatment, and reuse of wastewater which is a valuable resource in arid and semi-arid regions.

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Model development for nutrient loading from paddy rice fields

Cited by 60 publications

References 14 publications

Characteristics of Water Budget Components in Paddy Rice Field under the Asian Monsoon Climate: Application of HSPF-Paddy Model

Characteristics of Water Budget Components in Paddy Rice Field under the Asian Monsoon Climate: Application of HSPF-Paddy Model

Analysis of Temporal Variation of Soil Salinity during the Growing Season in a Flooded Rice Field of Thessaloniki Plain-Greece

Environmental Effects of Irrigation in Arid and Semi-Arid Regions

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