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Mass balance analysis and water quality model development for loading estimates from paddy fields
Mass balance analysis and water quality model development for paddy field were performed using field experimental data during 2001-2002. About half (47-62%) of the total outflow was lost by surface drainage, with the remainder (490-530 mm) occurring by evapotranspiration. Most of nutrient inflow and...
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| Published in: | Water science and technology 2005, Vol.51 (3-4), p.99-105 |
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| container_end_page | 105 |
| container_issue | 3-4 |
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| container_title | Water science and technology |
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| creator | Jeon, J H Yoon, C G Ham, J H Hwang, H S |
| description | Mass balance analysis and water quality model development for paddy field were performed using field experimental data during 2001-2002. About half (47-62%) of the total outflow was lost by surface drainage, with the remainder (490-530 mm) occurring by evapotranspiration. Most of nutrient inflow and outflow were mediated by fertilization and plant uptake, respectively. Nutrient outflow by surface drainage runoff was substantial about 15%-29% for T-N and 6%-13% for T-P. However, the responses of yield and drainage outflow to fertilization were not significant in this study. A water quality model applicable to paddy fields was developed and it demonstrates good agreement with observed data. The nutrient concentration of ponded water was high by fertilization at early culture periods, so reducing surface drainage during fertilization period can reduce nutrient loading from paddy fields. Shallow irrigation, raising the weir height in diked rice fields, and minimizing forced surface drainage are suggested to reduce surface drainage outflow. |
| doi_str_mv | 10.2166/wst.2005.0580 |
| format | article |
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About half (47-62%) of the total outflow was lost by surface drainage, with the remainder (490-530 mm) occurring by evapotranspiration. Most of nutrient inflow and outflow were mediated by fertilization and plant uptake, respectively. Nutrient outflow by surface drainage runoff was substantial about 15%-29% for T-N and 6%-13% for T-P. However, the responses of yield and drainage outflow to fertilization were not significant in this study. A water quality model applicable to paddy fields was developed and it demonstrates good agreement with observed data. The nutrient concentration of ponded water was high by fertilization at early culture periods, so reducing surface drainage during fertilization period can reduce nutrient loading from paddy fields. Shallow irrigation, raising the weir height in diked rice fields, and minimizing forced surface drainage are suggested to reduce surface drainage outflow.</description><identifier>ISSN: 0273-1223</identifier><identifier>ISBN: 1843394774</identifier><identifier>ISBN: 9781843394778</identifier><identifier>EISSN: 1996-9732</identifier><identifier>DOI: 10.2166/wst.2005.0580</identifier><identifier>PMID: 15850179</identifier><language>eng</language><publisher>England: IWA Publishing</publisher><subject>Biological fertilization ; Drainage ; Evapotranspiration ; Fertilization ; Fertilizers ; Inflow ; Korea ; Mineral nutrients ; Models, Theoretical ; Nitrogen - analysis ; Nutrient concentrations ; Nutrient loading ; Oryza ; Oryza sativa ; Outflow ; Phosphorus - analysis ; Reproducibility of Results ; Rice fields ; Runoff ; Surface drainage ; Surface runoff ; Uptake ; Water Movements ; Water Pollutants, Chemical - analysis ; Water quality ; Weirs</subject><ispartof>Water science and technology, 2005, Vol.51 (3-4), p.99-105</ispartof><rights>Copyright IWA Publishing Feb 2005</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c298t-2e4be9843e53b5231f6e7fbee572a2cd2730f35496674a9e88c6f982f5b4d5493</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>309,310,314,780,784,789,790,4024,4050,4051,23930,23931,25140,27923,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15850179$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Bruen, M</contributor><creatorcontrib>Jeon, J H</creatorcontrib><creatorcontrib>Yoon, C G</creatorcontrib><creatorcontrib>Ham, J H</creatorcontrib><creatorcontrib>Hwang, H S</creatorcontrib><title>Mass balance analysis and water quality model development for loading estimates from paddy fields</title><title>Water science and technology</title><addtitle>Water Sci Technol</addtitle><description>Mass balance analysis and water quality model development for paddy field were performed using field experimental data during 2001-2002. About half (47-62%) of the total outflow was lost by surface drainage, with the remainder (490-530 mm) occurring by evapotranspiration. Most of nutrient inflow and outflow were mediated by fertilization and plant uptake, respectively. Nutrient outflow by surface drainage runoff was substantial about 15%-29% for T-N and 6%-13% for T-P. However, the responses of yield and drainage outflow to fertilization were not significant in this study. A water quality model applicable to paddy fields was developed and it demonstrates good agreement with observed data. The nutrient concentration of ponded water was high by fertilization at early culture periods, so reducing surface drainage during fertilization period can reduce nutrient loading from paddy fields. Shallow irrigation, raising the weir height in diked rice fields, and minimizing forced surface drainage are suggested to reduce surface drainage outflow.</description><subject>Biological fertilization</subject><subject>Drainage</subject><subject>Evapotranspiration</subject><subject>Fertilization</subject><subject>Fertilizers</subject><subject>Inflow</subject><subject>Korea</subject><subject>Mineral nutrients</subject><subject>Models, Theoretical</subject><subject>Nitrogen - analysis</subject><subject>Nutrient concentrations</subject><subject>Nutrient loading</subject><subject>Oryza</subject><subject>Oryza sativa</subject><subject>Outflow</subject><subject>Phosphorus - analysis</subject><subject>Reproducibility of Results</subject><subject>Rice fields</subject><subject>Runoff</subject><subject>Surface drainage</subject><subject>Surface runoff</subject><subject>Uptake</subject><subject>Water Movements</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water quality</subject><subject>Weirs</subject><issn>0273-1223</issn><issn>1996-9732</issn><isbn>1843394774</isbn><isbn>9781843394778</isbn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNp9kc1rFEEQxRuNmE306FUaBPEya39_HEPwCxJyieehZ7paJvRsb7pnDPvfW0sWBA-eqih-PF69R8g7zraCG_P5qS1bwZjeMu3YC7Lh3pvOWylekgvulJReWavOyIYJKzsuhDwnF609MMasVOw1Oefaacat35BwG1qjQ8hhNwINu5APbWq4RPoUFqj0cQ15Wg50LhEyjfAbctnPsFtoKpXmEuK0-0WhLdOMfKOplpnuQ4wHmibIsb0hr1LIDd6e5iX5-fXL_fX37ubu24_rq5tuFN4tnQA1gEf3oOWgheTJgE0DgLYiiDHiKyxJrbwxVgUPzo0meSeSHlTEs7wkH59197U8rmion6c2QsbPoKyt54Z7jfkh-On_IBPKKMcNQ_TDP-hDWSuGhJRXEq05y5HqnqmxltYqpH5fMY16QKn-2FiPjfXHxvpjY8i_P6muwwzxL31qRf4BYyiPFw</recordid><startdate>2005</startdate><enddate>2005</enddate><creator>Jeon, J H</creator><creator>Yoon, C G</creator><creator>Ham, J H</creator><creator>Hwang, H S</creator><general>IWA Publishing</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QH</scope><scope>7UA</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FE</scope><scope>8FG</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>H96</scope><scope>H97</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>L.G</scope><scope>L6V</scope><scope>M0S</scope><scope>M1P</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>7TV</scope></search><sort><creationdate>2005</creationdate><title>Mass balance analysis and water quality model development for loading estimates from paddy fields</title><author>Jeon, J H ; 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About half (47-62%) of the total outflow was lost by surface drainage, with the remainder (490-530 mm) occurring by evapotranspiration. Most of nutrient inflow and outflow were mediated by fertilization and plant uptake, respectively. Nutrient outflow by surface drainage runoff was substantial about 15%-29% for T-N and 6%-13% for T-P. However, the responses of yield and drainage outflow to fertilization were not significant in this study. A water quality model applicable to paddy fields was developed and it demonstrates good agreement with observed data. The nutrient concentration of ponded water was high by fertilization at early culture periods, so reducing surface drainage during fertilization period can reduce nutrient loading from paddy fields. Shallow irrigation, raising the weir height in diked rice fields, and minimizing forced surface drainage are suggested to reduce surface drainage outflow.</abstract><cop>England</cop><pub>IWA Publishing</pub><pmid>15850179</pmid><doi>10.2166/wst.2005.0580</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0273-1223 |
| ispartof | Water science and technology, 2005, Vol.51 (3-4), p.99-105 |
| issn | 0273-1223 1996-9732 |
| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | Biological fertilization Drainage Evapotranspiration Fertilization Fertilizers Inflow Korea Mineral nutrients Models, Theoretical Nitrogen - analysis Nutrient concentrations Nutrient loading Oryza Oryza sativa Outflow Phosphorus - analysis Reproducibility of Results Rice fields Runoff Surface drainage Surface runoff Uptake Water Movements Water Pollutants, Chemical - analysis Water quality Weirs |
| title | Mass balance analysis and water quality model development for loading estimates from paddy fields |
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