Item talk:Q310529
From geokb
{
"USGS Publications Warehouse": { "@context": "https://schema.org", "@type": "Article", "additionalType": "Journal Article", "name": "Coupling high-frequency stream metabolism and nutrient monitoring to explore biogeochemical controls on downstream nitrate delivery", "identifier": [ { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse IndexID", "value": "70202105", "url": "https://pubs.usgs.gov/publication/70202105" }, { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse Internal ID", "value": 70202105 }, { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.1021/acs.est.8b03074", "url": "https://doi.org/10.1021/acs.est.8b03074" } ], "journal": { "@type": "Periodical", "name": "Environmental Science & Technology", "volumeNumber": "52", "issueNumber": "23" }, "inLanguage": "en", "isPartOf": [ { "@type": "CreativeWorkSeries", "name": "Environmental Science & Technology" } ], "datePublished": "2018", "dateModified": "2019-02-11", "abstract": "Instream biogeochemical process measurements are often short-term and localized. Here we use in situ sensors to quantify the net effects of biogeochemical processes on seasonal patterns in baseflow nitrate retention at the river-reach scale. Dual-station high-frequency in situ nitrate measurements, were coupled with high-frequency measurements of stream metabolism and dissolved inorganic carbon, in a tributary of the Buffalo National River, Arkansas. Nitrate assimilation was calculated from net primary production, and combined with mass-balance measurements, to estimate net nitrification and denitrification. The combined net effects of these instream processes (assimilation, denitrification, and nitrification) removed >30\u201390% of the baseflow nitrate load along a 6.5 km reach. Assimilation of nitrate by photoautotrophs during spring and early summer was buffered by net nitrification. Net nitrification peaked during the spring. After midsummer, there was a pronounced switch from assimilatory nitrate uptake to denitrification. There was clear synchronicity between the switch from nitrate assimilation to denitrification, a reduction in river baseflows, and a shift in stream metabolism from autotrophy to heterotrophy. The results show how instream nitrate retention and downstream delivery is driven by seasonal shifts in metabolic pathways; and how continuous in situ stream sensor networks offer new opportunities for quantifying the role of stream biota in the dynamics, fate, and transport of nitrogen in fluvial systems.", "description": "10 p.", "publisher": { "@type": "Organization", "name": "ACS" }, "author": [ { "@type": "Person", "name": "Hays, Phillip D. pdhays@usgs.gov", "givenName": "Phillip D.", "familyName": "Hays", "email": "pdhays@usgs.gov", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0001-5491-9272", "url": "https://orcid.org/0000-0001-5491-9272" }, "affiliation": [ { "@type": "Organization", "name": "Arkansas Water Science Center", "url": "https://www.usgs.gov/centers/lower-mississippi-gulf-water-science-center" }, { "@type": "Organization", "name": "Louisiana Water Science Center", "url": "https://www.usgs.gov/centers/lower-mississippi-gulf-water-science-center" }, { "@type": "Organization", "name": "Lower Mississippi-Gulf Water Science Center", "url": "https://www.usgs.gov/centers/lower-mississippi-gulf-water-science-center" } ] }, { "@type": "Person", "name": "Jarvie, Helen P.", "givenName": "Helen P.", "familyName": "Jarvie", "affiliation": [ { "@type": "Organization", "name": "NERC Center for Ecology and Hydrology" } ] }, { "@type": "Person", "name": "Sharpley, Andrew N.", "givenName": "Andrew N.", "familyName": "Sharpley" }, { "@type": "Person", "name": "Kresse, Timothy M. tkresse@usgs.gov", "givenName": "Timothy M.", "familyName": "Kresse", "email": "tkresse@usgs.gov", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0003-1035-0672", "url": "https://orcid.org/0000-0003-1035-0672" }, "affiliation": [ { "@type": "Organization", "name": "Arkansas Water Science Center", "url": 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"United States", "url": "https://geonames.org/4074035" }, { "@type": "Place", "additionalType": "state", "name": "Arkansas" }, { "@type": "Place", "additionalType": "unknown", "name": "Big Creek watershed" } ] }, "OpenAlex": { "_id": "https://openalex.org/w2899478350", "abstract_inverted_index": { "Instream": [ 0 ], "biogeochemical": [ 1, 21 ], "process": [ 2 ], "measurements": [ 3, 44 ], "are": [ 4 ], "often": [ 5 ], "short-term": [ 6 ], "and": [ 7, 48, 69, 78, 90, 111, 155, 172, 183, 205 ], "localized.": [ 8 ], "Here": [ 9 ], "we": [ 10 ], "use": [ 11 ], "in": [ 12, 26, 36, 52, 152, 158, 180, 186, 201, 209 ], "situ": [ 13, 37, 187 ], "sensors": [ 14 ], "to": [ 15, 74, 136, 148, 163 ], "quantify": [ 16 ], "the": [ 17, 31, 56, 95, 123, 143, 196, 202 ], "net": [ 18, 66, 76, 82, 117 ], "effects": [ 19, 83 ], "of": [ 20, 45, 55, 84, 94, 105, 198, 207 ], "processes": [ 22, 87 ], "on": [ 23 ], "seasonal": [ 24, 178 ], "patterns": [ 25 ], "baseflow": [ 27, 96 ], "nitrate": [ 28, 38, 97, 106, 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