Surface and subsurface flows of nutrients in natural and human impacted lake catchments on Broknes, Larsemann Hills, Antarctica
This study aimed to use nutrients in lake inflows as proxies for assessing human impact and separating this from natural transformations of material in the soil active layer. Nutrients, conductivity and δ18O were monitored in surface and subsurface (using ceramic tipped piezometers) lake inflows dur...
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| Veröffentlicht in: | Antarctic science 2002-12, Vol.14 (4), p.343-352 |
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| creator | KAUP, ENN BURGESS, JAMES S. |
| description | This study aimed to use nutrients in lake inflows as proxies for assessing human impact and
separating this from natural transformations of material in the soil active layer. Nutrients, conductivity and
δ18O were monitored in surface and subsurface (using ceramic tipped piezometers) lake inflows during
summer in near natural and human impacted catchments. The nutrient levels were highly variable but
generally higher during the last weeks of the flow, in both subsurface waters and in human impacted
catchments. Up to 2000 μgN l−1 subsurface dissolved inorganic nitrogen (DIN) was measured in human
impacted catchments but only 315 μg N l−1 in natural catchments. Subsurface levels of dissolved reactive
phosphorus (DRP) were up to 310 μgP l−1 in natural catchments and up to 108 μgP l-1 in human impacted
catchments. The maximum levels of both DIN and DRP in surface inflows were much higher in human
impacted than in natural catchments. Conductivity and δ18O data showed general enrichment of snowbank
meltwater presumably through evaporation from the active layer. This combined with fluctuating nutrient
levels in catchment waters indicated that soil brines and decaying organic matter of natural and human origin
were possible sources for nutrients and other salts. Marked salinization and substantially increased DIN
levels near the research stations indicated that lake waters were receiving nutrients generated by humans. |
| doi_str_mv | 10.1017/S0954102002000123 |
| format | Article |
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separating this from natural transformations of material in the soil active layer. Nutrients, conductivity and
δ18O were monitored in surface and subsurface (using ceramic tipped piezometers) lake inflows during
summer in near natural and human impacted catchments. The nutrient levels were highly variable but
generally higher during the last weeks of the flow, in both subsurface waters and in human impacted
catchments. Up to 2000 μgN l−1 subsurface dissolved inorganic nitrogen (DIN) was measured in human
impacted catchments but only 315 μg N l−1 in natural catchments. Subsurface levels of dissolved reactive
phosphorus (DRP) were up to 310 μgP l−1 in natural catchments and up to 108 μgP l-1 in human impacted
catchments. The maximum levels of both DIN and DRP in surface inflows were much higher in human
impacted than in natural catchments. Conductivity and δ18O data showed general enrichment of snowbank
meltwater presumably through evaporation from the active layer. This combined with fluctuating nutrient
levels in catchment waters indicated that soil brines and decaying organic matter of natural and human origin
were possible sources for nutrients and other salts. Marked salinization and substantially increased DIN
levels near the research stations indicated that lake waters were receiving nutrients generated by humans.</description><identifier>ISSN: 0954-1020</identifier><identifier>EISSN: 1365-2079</identifier><identifier>DOI: 10.1017/S0954102002000123</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Conductivity ; Evaporation ; Freshwater ; Lake catchments ; Lakes ; Meltwater ; Nutrients ; Organic matter ; Piezometers ; Receiving waters ; Salinization</subject><ispartof>Antarctic science, 2002-12, Vol.14 (4), p.343-352</ispartof><rights>Antarctic Science Ltd 2002</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a399t-465d1a34007b32418aa2b82d9c5548ff12f15a92430ac9718e256c1d2c6956273</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S0954102002000123/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>164,314,780,784,27924,27925,55628</link.rule.ids></links><search><creatorcontrib>KAUP, ENN</creatorcontrib><creatorcontrib>BURGESS, JAMES S.</creatorcontrib><title>Surface and subsurface flows of nutrients in natural and human impacted lake catchments on Broknes, Larsemann Hills, Antarctica</title><title>Antarctic science</title><addtitle>Antartic science</addtitle><description>This study aimed to use nutrients in lake inflows as proxies for assessing human impact and
separating this from natural transformations of material in the soil active layer. Nutrients, conductivity and
δ18O were monitored in surface and subsurface (using ceramic tipped piezometers) lake inflows during
summer in near natural and human impacted catchments. The nutrient levels were highly variable but
generally higher during the last weeks of the flow, in both subsurface waters and in human impacted
catchments. Up to 2000 μgN l−1 subsurface dissolved inorganic nitrogen (DIN) was measured in human
impacted catchments but only 315 μg N l−1 in natural catchments. Subsurface levels of dissolved reactive
phosphorus (DRP) were up to 310 μgP l−1 in natural catchments and up to 108 μgP l-1 in human impacted
catchments. The maximum levels of both DIN and DRP in surface inflows were much higher in human
impacted than in natural catchments. Conductivity and δ18O data showed general enrichment of snowbank
meltwater presumably through evaporation from the active layer. This combined with fluctuating nutrient
levels in catchment waters indicated that soil brines and decaying organic matter of natural and human origin
were possible sources for nutrients and other salts. Marked salinization and substantially increased DIN
levels near the research stations indicated that lake waters were receiving nutrients generated by humans.</description><subject>Conductivity</subject><subject>Evaporation</subject><subject>Freshwater</subject><subject>Lake catchments</subject><subject>Lakes</subject><subject>Meltwater</subject><subject>Nutrients</subject><subject>Organic matter</subject><subject>Piezometers</subject><subject>Receiving waters</subject><subject>Salinization</subject><issn>0954-1020</issn><issn>1365-2079</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqFkU1LxDAQhoMouH78AG_BgyermaRpk-O6-AULHtRzmU1T7W6brkmKePKv2-qCoIgwMMzM877DMIQcATsDBvn5PdMyBcbZGAy42CITEJlMOMv1NpmM42Sc75K9EJYjoiSbkPf73ldoLEVX0tAvwqasmu410K6iro--ti4GWjvqMPYem0_4uW_R0bpdo4m2pA2uLDUYzXP7SXeOXvhu5Ww4pXP0wQ60ozd10wyNqYvoTawNHpCdCptgDzd5nzxeXT7MbpL53fXtbDpPUGgdkzSTJaBIGcsXgqegEPlC8VIbKVNVVcArkKh5KhganYOyXGYGSm4yLTOei31y8uW79t1Lb0Ms2joY2zTobNeHApTSSnL4H8yFUFzpATz-AS673rvhiGKwAZaybFwLX5DxXQjeVsXa1y36twJYMT6u-PW4QSM2GmwXvi6f7Lfz36oPQEeZZA</recordid><startdate>20021201</startdate><enddate>20021201</enddate><creator>KAUP, ENN</creator><creator>BURGESS, JAMES S.</creator><general>Cambridge University Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7SN</scope><scope>7SS</scope><scope>7T7</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</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>FR3</scope><scope>H95</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>L.G</scope><scope>L6V</scope><scope>M7N</scope><scope>M7S</scope><scope>P64</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>7QH</scope><scope>7TV</scope><scope>7UA</scope><scope>H97</scope></search><sort><creationdate>20021201</creationdate><title>Surface and subsurface flows of nutrients in natural and human impacted lake catchments on Broknes, Larsemann Hills, Antarctica</title><author>KAUP, ENN ; BURGESS, JAMES S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a399t-465d1a34007b32418aa2b82d9c5548ff12f15a92430ac9718e256c1d2c6956273</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Conductivity</topic><topic>Evaporation</topic><topic>Freshwater</topic><topic>Lake catchments</topic><topic>Lakes</topic><topic>Meltwater</topic><topic>Nutrients</topic><topic>Organic matter</topic><topic>Piezometers</topic><topic>Receiving waters</topic><topic>Salinization</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>KAUP, ENN</creatorcontrib><creatorcontrib>BURGESS, JAMES S.</creatorcontrib><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Engineering Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>Aqualine</collection><collection>Pollution Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><jtitle>Antarctic science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>KAUP, ENN</au><au>BURGESS, JAMES S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Surface and subsurface flows of nutrients in natural and human impacted lake catchments on Broknes, Larsemann Hills, Antarctica</atitle><jtitle>Antarctic science</jtitle><addtitle>Antartic science</addtitle><date>2002-12-01</date><risdate>2002</risdate><volume>14</volume><issue>4</issue><spage>343</spage><epage>352</epage><pages>343-352</pages><issn>0954-1020</issn><eissn>1365-2079</eissn><abstract>This study aimed to use nutrients in lake inflows as proxies for assessing human impact and
separating this from natural transformations of material in the soil active layer. Nutrients, conductivity and
δ18O were monitored in surface and subsurface (using ceramic tipped piezometers) lake inflows during
summer in near natural and human impacted catchments. The nutrient levels were highly variable but
generally higher during the last weeks of the flow, in both subsurface waters and in human impacted
catchments. Up to 2000 μgN l−1 subsurface dissolved inorganic nitrogen (DIN) was measured in human
impacted catchments but only 315 μg N l−1 in natural catchments. Subsurface levels of dissolved reactive
phosphorus (DRP) were up to 310 μgP l−1 in natural catchments and up to 108 μgP l-1 in human impacted
catchments. The maximum levels of both DIN and DRP in surface inflows were much higher in human
impacted than in natural catchments. Conductivity and δ18O data showed general enrichment of snowbank
meltwater presumably through evaporation from the active layer. This combined with fluctuating nutrient
levels in catchment waters indicated that soil brines and decaying organic matter of natural and human origin
were possible sources for nutrients and other salts. Marked salinization and substantially increased DIN
levels near the research stations indicated that lake waters were receiving nutrients generated by humans.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><doi>10.1017/S0954102002000123</doi><tpages>10</tpages></addata></record> |
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| identifier | ISSN: 0954-1020 |
| ispartof | Antarctic science, 2002-12, Vol.14 (4), p.343-352 |
| issn | 0954-1020 1365-2079 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_18898521 |
| source | Cambridge University Press Journals Complete |
| subjects | Conductivity Evaporation Freshwater Lake catchments Lakes Meltwater Nutrients Organic matter Piezometers Receiving waters Salinization |
| title | Surface and subsurface flows of nutrients in natural and human impacted lake catchments on Broknes, Larsemann Hills, Antarctica |
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