Trend-analysis of eutrophication variables in lakes in The Netherlands
A trend-analysis of eutrophication variables was performed for a large number of lakes in The Netherlands. Data of in total 231 lakes were available. Data on chlorophyll-a, total phosphorus (total-P) and total nitrogen (total-N) were analysed over the period 1980-1996. Summer-averaged concentrations...
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| Veröffentlicht in: | Water science and technology 1998, Vol.37 (3), p.235-240 |
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| creator | PORTIELJE, R VAN DER MOLEN, D. T |
| description | A trend-analysis of eutrophication variables was performed for a large number of lakes in The Netherlands. Data of in total 231 lakes were available. Data on chlorophyll-a, total phosphorus (total-P) and total nitrogen (total-N) were analysed over the period 1980-1996. Summer-averaged concentrations for chlorophyll-a, total-P and total-N decreased in respectively 65%, 73% and 75% of the lakes with at least eight years data between 1980 and 1996. Results for winter means were comparable (a negative trend in 54%, 77% and 69% for concentrations of chlorophyll-a, total-P and total-N respectively). Since 1980 the median decrease in the summer averaged concentrations of chlorophyll-a, total-P and total-N is 2.61 mu g l super(-1) y super(-1), 0.008 mg l super(-1) y super(-1) and 0.046 mg l super(-1) y super(-1), respectively, illustrating the effects of (inter)national and regional measures to combat eutrophication. |
| doi_str_mv | 10.1016/S0273-1223(98)00075-4 |
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T</creator><contributor>Roijackers, R ; Aalderink, RH ; Blom, G (eds)</contributor><creatorcontrib>PORTIELJE, R ; VAN DER MOLEN, D. T ; Roijackers, R ; Aalderink, RH ; Blom, G (eds)</creatorcontrib><description>A trend-analysis of eutrophication variables was performed for a large number of lakes in The Netherlands. Data of in total 231 lakes were available. Data on chlorophyll-a, total phosphorus (total-P) and total nitrogen (total-N) were analysed over the period 1980-1996. Summer-averaged concentrations for chlorophyll-a, total-P and total-N decreased in respectively 65%, 73% and 75% of the lakes with at least eight years data between 1980 and 1996. Results for winter means were comparable (a negative trend in 54%, 77% and 69% for concentrations of chlorophyll-a, total-P and total-N respectively). Since 1980 the median decrease in the summer averaged concentrations of chlorophyll-a, total-P and total-N is 2.61 mu g l super(-1) y super(-1), 0.008 mg l super(-1) y super(-1) and 0.046 mg l super(-1) y super(-1), respectively, illustrating the effects of (inter)national and regional measures to combat eutrophication.</description><identifier>ISSN: 0273-1223</identifier><identifier>ISBN: 0080433812</identifier><identifier>ISBN: 9780080433813</identifier><identifier>EISSN: 1996-9732</identifier><identifier>DOI: 10.1016/S0273-1223(98)00075-4</identifier><identifier>CODEN: WSTED4</identifier><language>eng</language><publisher>Oxford: Pergamon</publisher><subject>Animal, plant and microbial ecology ; Applied ecology ; Applied sciences ; Biological and medical sciences ; Chlorophyll ; Chlorophyll a ; Continental surface waters ; Data ; Data reduction ; Earth sciences ; Earth, ocean, space ; Ecotoxicology, biological effects of pollution ; Engineering and environment geology. Geothermics ; Eutrophication ; Exact sciences and technology ; Fresh water environment ; Fundamental and applied biological sciences. Psychology ; Lakes ; Natural water pollution ; Nitrogen ; Parameter estimation ; Phosphorus ; Pollution ; Pollution, environment geology ; Summer ; Water treatment and pollution</subject><ispartof>Water science and technology, 1998, Vol.37 (3), p.235-240</ispartof><rights>1998 INIST-CNRS</rights><rights>Copyright IWA Publishing Feb 1998</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-f421cef5132dbb983d7023ec92a8df651554a35bafeb4d662180d7b69ad1c8b03</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>310,311,315,781,785,790,791,4025,4051,4052,23934,23935,25144,27927,27928,27929</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2043842$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><contributor>Roijackers, R</contributor><contributor>Aalderink, RH</contributor><contributor>Blom, G (eds)</contributor><creatorcontrib>PORTIELJE, R</creatorcontrib><creatorcontrib>VAN DER MOLEN, D. T</creatorcontrib><title>Trend-analysis of eutrophication variables in lakes in The Netherlands</title><title>Water science and technology</title><description>A trend-analysis of eutrophication variables was performed for a large number of lakes in The Netherlands. Data of in total 231 lakes were available. Data on chlorophyll-a, total phosphorus (total-P) and total nitrogen (total-N) were analysed over the period 1980-1996. Summer-averaged concentrations for chlorophyll-a, total-P and total-N decreased in respectively 65%, 73% and 75% of the lakes with at least eight years data between 1980 and 1996. Results for winter means were comparable (a negative trend in 54%, 77% and 69% for concentrations of chlorophyll-a, total-P and total-N respectively). Since 1980 the median decrease in the summer averaged concentrations of chlorophyll-a, total-P and total-N is 2.61 mu g l super(-1) y super(-1), 0.008 mg l super(-1) y super(-1) and 0.046 mg l super(-1) y super(-1), respectively, illustrating the effects of (inter)national and regional measures to combat eutrophication.</description><subject>Animal, plant and microbial ecology</subject><subject>Applied ecology</subject><subject>Applied sciences</subject><subject>Biological and medical sciences</subject><subject>Chlorophyll</subject><subject>Chlorophyll a</subject><subject>Continental surface waters</subject><subject>Data</subject><subject>Data reduction</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Ecotoxicology, biological effects of pollution</subject><subject>Engineering and environment geology. Geothermics</subject><subject>Eutrophication</subject><subject>Exact sciences and technology</subject><subject>Fresh water environment</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Lakes</subject><subject>Natural water pollution</subject><subject>Nitrogen</subject><subject>Parameter estimation</subject><subject>Phosphorus</subject><subject>Pollution</subject><subject>Pollution, environment geology</subject><subject>Summer</subject><subject>Water treatment and pollution</subject><issn>0273-1223</issn><issn>1996-9732</issn><isbn>0080433812</isbn><isbn>9780080433813</isbn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqFkU9LwzAYh4N_wG36EYSCInqoJnmTNDnKcCoMPTjPIU1Tltm1M2mFfXu7TXbwslzeHJ7f7w15ELok-J5gIh4-MM0gJZTCrZJ3GOOMp-wIDYhSIlUZ0GM0xFhiBiAJPUGDPX-GhjEuNglgeIAms-DqIjW1qdbRx6QpE9e1oVnNvTWtb-rkxwRv8srFxNdJZb52l9ncJW-unbtQmbqI5-i0NFV0F39zhD4nT7PxSzp9f34dP05TC0S0ackosa7kBGiR50pCkWEKzipqZFEKTjhnBnhuSpezQghKJC6yXChTECtzDCN0s-tdhea7c7HVSx-tq_pHuKaLmhKQ_ckOgkT0qyiGwyAIInkmevDqH7houtD_W88oBhQ4qE0d31E2NDEGV-pV8EsT1ppgvVGnt-r0RoVWUm_Vadbnrv_aTbSmKoOprY_7MO1NSkbhF3AKlU4</recordid><startdate>1998</startdate><enddate>1998</enddate><creator>PORTIELJE, R</creator><creator>VAN DER MOLEN, D. 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Psychology</topic><topic>Lakes</topic><topic>Natural water pollution</topic><topic>Nitrogen</topic><topic>Parameter estimation</topic><topic>Phosphorus</topic><topic>Pollution</topic><topic>Pollution, environment geology</topic><topic>Summer</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>PORTIELJE, R</creatorcontrib><creatorcontrib>VAN DER MOLEN, D. 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T</au><au>Roijackers, R</au><au>Aalderink, RH</au><au>Blom, G (eds)</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Trend-analysis of eutrophication variables in lakes in The Netherlands</atitle><jtitle>Water science and technology</jtitle><date>1998</date><risdate>1998</risdate><volume>37</volume><issue>3</issue><spage>235</spage><epage>240</epage><pages>235-240</pages><issn>0273-1223</issn><eissn>1996-9732</eissn><isbn>0080433812</isbn><isbn>9780080433813</isbn><coden>WSTED4</coden><abstract>A trend-analysis of eutrophication variables was performed for a large number of lakes in The Netherlands. Data of in total 231 lakes were available. Data on chlorophyll-a, total phosphorus (total-P) and total nitrogen (total-N) were analysed over the period 1980-1996. Summer-averaged concentrations for chlorophyll-a, total-P and total-N decreased in respectively 65%, 73% and 75% of the lakes with at least eight years data between 1980 and 1996. 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| ispartof | Water science and technology, 1998, Vol.37 (3), p.235-240 |
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| subjects | Animal, plant and microbial ecology Applied ecology Applied sciences Biological and medical sciences Chlorophyll Chlorophyll a Continental surface waters Data Data reduction Earth sciences Earth, ocean, space Ecotoxicology, biological effects of pollution Engineering and environment geology. Geothermics Eutrophication Exact sciences and technology Fresh water environment Fundamental and applied biological sciences. Psychology Lakes Natural water pollution Nitrogen Parameter estimation Phosphorus Pollution Pollution, environment geology Summer Water treatment and pollution |
| title | Trend-analysis of eutrophication variables in lakes in The Netherlands |
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