Relations of hydrogeologic factors, groundwater reduction-oxidation conditions, and temporal and spatial distributions of nitrate, Central-Eastside San Joaquin Valley, California, USA
In a 2,700-km 2 area in the eastern San Joaquin Valley, California (USA), data from multiple sources were used to determine interrelations among hydrogeologic factors, reduction-oxidation (redox) conditions, and temporal and spatial distributions of nitrate (NO 3 ), a widely detected groundwater con...
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| Veröffentlicht in: | Hydrogeology journal 2011-09, Vol.19 (6), p.1203-1224 |
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| creator | Landon, Matthew K. Green, Christopher T. Belitz, Kenneth Singleton, Michael J. Esser, Bradley K. |
| description | In a 2,700-km
2
area in the eastern San Joaquin Valley, California (USA), data from multiple sources were used to determine interrelations among hydrogeologic factors, reduction-oxidation (redox) conditions, and temporal and spatial distributions of nitrate (NO
3
), a widely detected groundwater contaminant. Groundwater is predominantly modern, or mixtures of modern water, with detectable NO
3
and oxic redox conditions, but some zones have anoxic or mixed redox conditions. Anoxic conditions were associated with long residence times that occurred near the valley trough and in areas of historical groundwater discharge with shallow depth to water. Anoxic conditions also were associated with interactions of shallow, modern groundwater with soils. NO
3
concentrations were significantly lower in anoxic than oxic or mixed redox groundwater, primarily because residence times of anoxic waters exceed the duration of increased pumping and fertilizer use associated with modern agriculture. Effects of redox reactions on NO
3
concentrations were relatively minor. Dissolved N
2
gas data indicated that denitrification has eliminated >5 mg/L NO
3
–N in about 10% of 39 wells. Increasing NO
3
concentrations over time were slightly less prevalent in anoxic than oxic or mixed redox groundwater. Spatial and temporal trends of NO
3
are primarily controlled by water and NO
3
fluxes of modern land use. |
| doi_str_mv | 10.1007/s10040-011-0750-1 |
| format | Article |
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2
area in the eastern San Joaquin Valley, California (USA), data from multiple sources were used to determine interrelations among hydrogeologic factors, reduction-oxidation (redox) conditions, and temporal and spatial distributions of nitrate (NO
3
), a widely detected groundwater contaminant. Groundwater is predominantly modern, or mixtures of modern water, with detectable NO
3
and oxic redox conditions, but some zones have anoxic or mixed redox conditions. Anoxic conditions were associated with long residence times that occurred near the valley trough and in areas of historical groundwater discharge with shallow depth to water. Anoxic conditions also were associated with interactions of shallow, modern groundwater with soils. NO
3
concentrations were significantly lower in anoxic than oxic or mixed redox groundwater, primarily because residence times of anoxic waters exceed the duration of increased pumping and fertilizer use associated with modern agriculture. Effects of redox reactions on NO
3
concentrations were relatively minor. Dissolved N
2
gas data indicated that denitrification has eliminated >5 mg/L NO
3
–N in about 10% of 39 wells. Increasing NO
3
concentrations over time were slightly less prevalent in anoxic than oxic or mixed redox groundwater. Spatial and temporal trends of NO
3
are primarily controlled by water and NO
3
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2
area in the eastern San Joaquin Valley, California (USA), data from multiple sources were used to determine interrelations among hydrogeologic factors, reduction-oxidation (redox) conditions, and temporal and spatial distributions of nitrate (NO
3
), a widely detected groundwater contaminant. Groundwater is predominantly modern, or mixtures of modern water, with detectable NO
3
and oxic redox conditions, but some zones have anoxic or mixed redox conditions. Anoxic conditions were associated with long residence times that occurred near the valley trough and in areas of historical groundwater discharge with shallow depth to water. Anoxic conditions also were associated with interactions of shallow, modern groundwater with soils. NO
3
concentrations were significantly lower in anoxic than oxic or mixed redox groundwater, primarily because residence times of anoxic waters exceed the duration of increased pumping and fertilizer use associated with modern agriculture. Effects of redox reactions on NO
3
concentrations were relatively minor. Dissolved N
2
gas data indicated that denitrification has eliminated >5 mg/L NO
3
–N in about 10% of 39 wells. Increasing NO
3
concentrations over time were slightly less prevalent in anoxic than oxic or mixed redox groundwater. Spatial and temporal trends of NO
3
are primarily controlled by water and NO
3
fluxes of modern land use.</description><subject>Anoxic conditions</subject><subject>Anoxic waters</subject><subject>Aquatic Pollution</subject><subject>Contaminants</subject><subject>Dissolution</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Freshwater</subject><subject>Geology</subject><subject>Geophysics/Geodesy</subject><subject>Groundwater</subject><subject>Groundwater discharge</subject><subject>Groundwater pollution</subject><subject>Hydrogeology</subject><subject>Hydrology/Water Resources</subject><subject>Land use</subject><subject>Nitrates</subject><subject>Oxidation</subject><subject>Redox reactions</subject><subject>Reduction-Oxidation</subject><subject>Soils</subject><subject>Spatial distribution</subject><subject>Temporal logic</subject><subject>Valleys</subject><subject>Waste Water Technology</subject><subject>Water depth</subject><subject>Water Management</subject><subject>Water Pollution Control</subject><subject>Water Quality/Water Pollution</subject><issn>1431-2174</issn><issn>1435-0157</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kUFrVDEUhR-iYK3-AHfBjZtJzU3eS2aWZahaKQjWug15eTdjSiaZJnnU-WX-PTMzoiC4SU4u3zm5cLruNbALYEy9K-3sGWUAlKmBUXjSnUEvhjYZ1NOjBspB9c-7F6Xcs0aDEmfdzy8YTPUpFpIc-b6fctpgCmnjLXHG1pTLgmxymuP0aCpmknGa7cFA0w8_Ha3Epjj5Y8iCmDiRittdyiYcH2XXoKYnX2r24_zns-hrbpELssbYVKBXptTiJyS3JpJPyTzMPpJvJgTcN8gE71KO3izI3e3ly-6ZM6Hgq9_3eXf3_urr-iO9-fzhen15Q41QrNKBs0GwleUg2SD5NIrBDVKqFeOcCcGk4yP2PfBROQ4Mx56DUCAlt8qiQ3HevT3l7nJ6mLFUvfXFYggmYpqLXgGAFEwtG_nmH_I-zTm25fRyqSSolZINghNkcyolo9O77Lcm7zUwfShSn4rUrUh9KFJD8_CTpzQ2bjD_Df6_6RfmtKKF</recordid><startdate>20110901</startdate><enddate>20110901</enddate><creator>Landon, Matthew K.</creator><creator>Green, Christopher T.</creator><creator>Belitz, Kenneth</creator><creator>Singleton, Michael J.</creator><creator>Esser, Bradley K.</creator><general>Springer-Verlag</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QH</scope><scope>7ST</scope><scope>7TG</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</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>GNUQQ</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L6V</scope><scope>M2P</scope><scope>M7S</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>SOI</scope></search><sort><creationdate>20110901</creationdate><title>Relations of hydrogeologic factors, groundwater reduction-oxidation conditions, and temporal and spatial distributions of nitrate, Central-Eastside San Joaquin Valley, California, USA</title><author>Landon, Matthew K. ; Green, Christopher T. ; Belitz, Kenneth ; Singleton, Michael J. ; Esser, Bradley K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a370t-5205309c2160562db35f5667902203306f2be4412b7f210eb421371662c7cefe3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Anoxic conditions</topic><topic>Anoxic waters</topic><topic>Aquatic Pollution</topic><topic>Contaminants</topic><topic>Dissolution</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Freshwater</topic><topic>Geology</topic><topic>Geophysics/Geodesy</topic><topic>Groundwater</topic><topic>Groundwater discharge</topic><topic>Groundwater pollution</topic><topic>Hydrogeology</topic><topic>Hydrology/Water Resources</topic><topic>Land use</topic><topic>Nitrates</topic><topic>Oxidation</topic><topic>Redox reactions</topic><topic>Reduction-Oxidation</topic><topic>Soils</topic><topic>Spatial distribution</topic><topic>Temporal logic</topic><topic>Valleys</topic><topic>Waste Water Technology</topic><topic>Water depth</topic><topic>Water Management</topic><topic>Water Pollution Control</topic><topic>Water Quality/Water Pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Landon, Matthew K.</creatorcontrib><creatorcontrib>Green, Christopher T.</creatorcontrib><creatorcontrib>Belitz, Kenneth</creatorcontrib><creatorcontrib>Singleton, Michael J.</creatorcontrib><creatorcontrib>Esser, Bradley K.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</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>ProQuest Central Student</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>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Environmental Science Database</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>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>Environment Abstracts</collection><jtitle>Hydrogeology journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Landon, Matthew K.</au><au>Green, Christopher T.</au><au>Belitz, Kenneth</au><au>Singleton, Michael J.</au><au>Esser, Bradley K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Relations of hydrogeologic factors, groundwater reduction-oxidation conditions, and temporal and spatial distributions of nitrate, Central-Eastside San Joaquin Valley, California, USA</atitle><jtitle>Hydrogeology journal</jtitle><stitle>Hydrogeol J</stitle><date>2011-09-01</date><risdate>2011</risdate><volume>19</volume><issue>6</issue><spage>1203</spage><epage>1224</epage><pages>1203-1224</pages><issn>1431-2174</issn><eissn>1435-0157</eissn><abstract>In a 2,700-km
2
area in the eastern San Joaquin Valley, California (USA), data from multiple sources were used to determine interrelations among hydrogeologic factors, reduction-oxidation (redox) conditions, and temporal and spatial distributions of nitrate (NO
3
), a widely detected groundwater contaminant. Groundwater is predominantly modern, or mixtures of modern water, with detectable NO
3
and oxic redox conditions, but some zones have anoxic or mixed redox conditions. Anoxic conditions were associated with long residence times that occurred near the valley trough and in areas of historical groundwater discharge with shallow depth to water. Anoxic conditions also were associated with interactions of shallow, modern groundwater with soils. NO
3
concentrations were significantly lower in anoxic than oxic or mixed redox groundwater, primarily because residence times of anoxic waters exceed the duration of increased pumping and fertilizer use associated with modern agriculture. Effects of redox reactions on NO
3
concentrations were relatively minor. Dissolved N
2
gas data indicated that denitrification has eliminated >5 mg/L NO
3
–N in about 10% of 39 wells. Increasing NO
3
concentrations over time were slightly less prevalent in anoxic than oxic or mixed redox groundwater. Spatial and temporal trends of NO
3
are primarily controlled by water and NO
3
fluxes of modern land use.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><doi>10.1007/s10040-011-0750-1</doi><tpages>22</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1431-2174 |
| ispartof | Hydrogeology journal, 2011-09, Vol.19 (6), p.1203-1224 |
| issn | 1431-2174 1435-0157 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_911163078 |
| source | SpringerLink Journals |
| subjects | Anoxic conditions Anoxic waters Aquatic Pollution Contaminants Dissolution Earth and Environmental Science Earth Sciences Freshwater Geology Geophysics/Geodesy Groundwater Groundwater discharge Groundwater pollution Hydrogeology Hydrology/Water Resources Land use Nitrates Oxidation Redox reactions Reduction-Oxidation Soils Spatial distribution Temporal logic Valleys Waste Water Technology Water depth Water Management Water Pollution Control Water Quality/Water Pollution |
| title | Relations of hydrogeologic factors, groundwater reduction-oxidation conditions, and temporal and spatial distributions of nitrate, Central-Eastside San Joaquin Valley, California, USA |
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