Estimation and comparison of nitrogen loads and attenuation in agricultural catchments of Japan and Korea
To help in clarifying the relationship between the time lag and attenuation of nitrogen (N) loads generated in agricultural catchments, long-term trends in activities that generate N loads and in environmental N loads were estimated in catchments in Japan and Korea dominated by non-point-source emis...
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| Veröffentlicht in: | Water science and technology 2007-01, Vol.56 (1), p.105-113 |
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| creator | Itahashi, S Seo, M.C Takeuchi, M |
| description | To help in clarifying the relationship between the time lag and attenuation of nitrogen (N) loads generated in agricultural catchments, long-term trends in activities that generate N loads and in environmental N loads were estimated in catchments in Japan and Korea dominated by non-point-source emissions. Our approach used statistical data and geographical information system software to analyze pollutant loads. The method was successful in both countries because of the availability of well-developed statistics, geographical information, and weather and water quality monitoring systems, and the accumulation of research data concerning the generation of N loads and the fate of N in soils. Comparison of environmental loads with the loads observed in river water at the outlet of each catchment revealed that: (1) the effect of changes in the environmental load in a catchment appeared almost immediately in the river water quality in Korea, but did not appear clearly even 10 years later in Japan; and (2) the strength of the attenuation appeared to be much lower in Korea than in Japan. These findings suggest that regional characteristics play important roles in the sensitivity of water quality to load-generating activities. |
| doi_str_mv | 10.2166/wst.2007.441 |
| format | Article |
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Our approach used statistical data and geographical information system software to analyze pollutant loads. The method was successful in both countries because of the availability of well-developed statistics, geographical information, and weather and water quality monitoring systems, and the accumulation of research data concerning the generation of N loads and the fate of N in soils. Comparison of environmental loads with the loads observed in river water at the outlet of each catchment revealed that: (1) the effect of changes in the environmental load in a catchment appeared almost immediately in the river water quality in Korea, but did not appear clearly even 10 years later in Japan; and (2) the strength of the attenuation appeared to be much lower in Korea than in Japan. These findings suggest that regional characteristics play important roles in the sensitivity of water quality to load-generating activities.</description><identifier>ISSN: 0273-1223</identifier><identifier>ISBN: 9781843395973</identifier><identifier>ISBN: 1843395975</identifier><identifier>EISSN: 1996-9732</identifier><identifier>DOI: 10.2166/wst.2007.441</identifier><identifier>PMID: 17711005</identifier><language>eng</language><publisher>England: IWA Publishing</publisher><subject>Agricultural watersheds ; Agriculture ; Animals ; Attenuation ; Catchment area ; Catchments ; computer software ; duration ; Environmental changes ; environmental fate ; Environmental monitoring ; estimation ; Freshwater ; Geographic information systems ; Humans ; Information systems ; Japan ; Korea ; Loads (forces) ; Monitoring systems ; Nitrogen ; Nitrogen - analysis ; nonpoint source pollution ; Outlets ; Pollutant load ; Pollution load ; Pollution monitoring ; River water ; Rivers ; Rivers - chemistry ; Soil ; soil pollution ; statistical analysis ; Statistical methods ; Time Factors ; Time lag ; Water monitoring ; Water Pollutants, Chemical - analysis ; Water pollution ; Water quality ; Water quality management ; weather</subject><ispartof>Water science and technology, 2007-01, Vol.56 (1), p.105-113</ispartof><rights>Copyright IWA Publishing Jul 2007</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c443t-fc024ca8c214b292b7f4f989d545c9f8c84ff7f3d10c49a337171ec87c7988643</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17711005$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Tanik, A</contributor><contributor>Ozturk, I</contributor><contributor>Yazgan, MS</contributor><contributor>Heath, R (eds)</contributor><creatorcontrib>Itahashi, S</creatorcontrib><creatorcontrib>Seo, M.C</creatorcontrib><creatorcontrib>Takeuchi, M</creatorcontrib><title>Estimation and comparison of nitrogen loads and attenuation in agricultural catchments of Japan and Korea</title><title>Water science and technology</title><addtitle>Water Sci Technol</addtitle><description>To help in clarifying the relationship between the time lag and attenuation of nitrogen (N) loads generated in agricultural catchments, long-term trends in activities that generate N loads and in environmental N loads were estimated in catchments in Japan and Korea dominated by non-point-source emissions. Our approach used statistical data and geographical information system software to analyze pollutant loads. The method was successful in both countries because of the availability of well-developed statistics, geographical information, and weather and water quality monitoring systems, and the accumulation of research data concerning the generation of N loads and the fate of N in soils. Comparison of environmental loads with the loads observed in river water at the outlet of each catchment revealed that: (1) the effect of changes in the environmental load in a catchment appeared almost immediately in the river water quality in Korea, but did not appear clearly even 10 years later in Japan; and (2) the strength of the attenuation appeared to be much lower in Korea than in Japan. These findings suggest that regional characteristics play important roles in the sensitivity of water quality to load-generating activities.</description><subject>Agricultural watersheds</subject><subject>Agriculture</subject><subject>Animals</subject><subject>Attenuation</subject><subject>Catchment area</subject><subject>Catchments</subject><subject>computer software</subject><subject>duration</subject><subject>Environmental changes</subject><subject>environmental fate</subject><subject>Environmental monitoring</subject><subject>estimation</subject><subject>Freshwater</subject><subject>Geographic information systems</subject><subject>Humans</subject><subject>Information systems</subject><subject>Japan</subject><subject>Korea</subject><subject>Loads (forces)</subject><subject>Monitoring systems</subject><subject>Nitrogen</subject><subject>Nitrogen - analysis</subject><subject>nonpoint source pollution</subject><subject>Outlets</subject><subject>Pollutant load</subject><subject>Pollution load</subject><subject>Pollution monitoring</subject><subject>River water</subject><subject>Rivers</subject><subject>Rivers - chemistry</subject><subject>Soil</subject><subject>soil pollution</subject><subject>statistical analysis</subject><subject>Statistical methods</subject><subject>Time Factors</subject><subject>Time lag</subject><subject>Water monitoring</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water pollution</subject><subject>Water quality</subject><subject>Water quality management</subject><subject>weather</subject><issn>0273-1223</issn><issn>1996-9732</issn><isbn>9781843395973</isbn><isbn>1843395975</isbn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNp9kc1LHDEYh0NbqVvrred2QJAenG3eJJOPo8hq_QAP6jlkM4kdmZmsSQbxvzfrLBR66CkkPL8fed8HoW-AlwQ4__WS8pJgLJaMwQe0AKV4rQQlH9GhEhIko1Q15eETWmAiaA2E0H30JaUnXFKU4c9oH4QAwLhZoG6VcjeY3IWxMmNb2TBsTOxSuQZfjV2O4dGNVR9Mm94Bk7MbpznQlcxj7OzU5ymavrIm2z-DG3Pahq_Mxsyl1yE68xXtedMnd7g7D9DD-er-7Hd9c3txeXZ6U1vGaK69xYRZIy0BtiaKrIVnXknVNqyxyksrmffC0xawZcpQKkCAs1JYoaTkjB6g47l3E8Pz5FLWQ5es63szujAlTbBgDQZZwJ__BaF8hDeES1rQo3_QpzDFsYyhQTFemEbyQp3MlI0hpei83sSy2_haqvTWnS7u9NadLu4K_n1XOq0H1_6Fd3IK8GMGvAl6u-ikH-4IBoqxJFxJTN8A3XibJA</recordid><startdate>20070101</startdate><enddate>20070101</enddate><creator>Itahashi, S</creator><creator>Seo, M.C</creator><creator>Takeuchi, M</creator><general>IWA Publishing</general><scope>FBQ</scope><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>PRINS</scope><scope>PTHSS</scope><scope>7ST</scope><scope>7TV</scope><scope>SOI</scope><scope>7U6</scope></search><sort><creationdate>20070101</creationdate><title>Estimation and comparison of nitrogen loads and attenuation in agricultural catchments of Japan and Korea</title><author>Itahashi, S ; Seo, M.C ; Takeuchi, M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c443t-fc024ca8c214b292b7f4f989d545c9f8c84ff7f3d10c49a337171ec87c7988643</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Agricultural watersheds</topic><topic>Agriculture</topic><topic>Animals</topic><topic>Attenuation</topic><topic>Catchment area</topic><topic>Catchments</topic><topic>computer software</topic><topic>duration</topic><topic>Environmental changes</topic><topic>environmental fate</topic><topic>Environmental monitoring</topic><topic>estimation</topic><topic>Freshwater</topic><topic>Geographic information systems</topic><topic>Humans</topic><topic>Information systems</topic><topic>Japan</topic><topic>Korea</topic><topic>Loads (forces)</topic><topic>Monitoring systems</topic><topic>Nitrogen</topic><topic>Nitrogen - 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Our approach used statistical data and geographical information system software to analyze pollutant loads. The method was successful in both countries because of the availability of well-developed statistics, geographical information, and weather and water quality monitoring systems, and the accumulation of research data concerning the generation of N loads and the fate of N in soils. Comparison of environmental loads with the loads observed in river water at the outlet of each catchment revealed that: (1) the effect of changes in the environmental load in a catchment appeared almost immediately in the river water quality in Korea, but did not appear clearly even 10 years later in Japan; and (2) the strength of the attenuation appeared to be much lower in Korea than in Japan. These findings suggest that regional characteristics play important roles in the sensitivity of water quality to load-generating activities.</abstract><cop>England</cop><pub>IWA Publishing</pub><pmid>17711005</pmid><doi>10.2166/wst.2007.441</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Agricultural watersheds Agriculture Animals Attenuation Catchment area Catchments computer software duration Environmental changes environmental fate Environmental monitoring estimation Freshwater Geographic information systems Humans Information systems Japan Korea Loads (forces) Monitoring systems Nitrogen Nitrogen - analysis nonpoint source pollution Outlets Pollutant load Pollution load Pollution monitoring River water Rivers Rivers - chemistry Soil soil pollution statistical analysis Statistical methods Time Factors Time lag Water monitoring Water Pollutants, Chemical - analysis Water pollution Water quality Water quality management weather |
| title | Estimation and comparison of nitrogen loads and attenuation in agricultural catchments of Japan and Korea |
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