Water-soluble organic carbon release from mineral soils and sediments in an irrigated agricultural system
Water interactions with soil and vegetation are greatly altered in agricultural watersheds compared to natural landscapes, which impacts sources and fates of organic carbon (OC). While mineral soil horizons in natural ecosystems primarily act as filters for dissolved organic carbon (DOC) leached fro...
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| Veröffentlicht in: | Journal of environmental management 2023-10, Vol.343, p.118184-118184, Article 118184 |
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| container_title | Journal of environmental management |
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| creator | Matiasek, Sandrine J. Pellerin, Brian A. Spencer, Robert G.M. Bergamaschi, Brian A. Hernes, Peter J. |
| description | Water interactions with soil and vegetation are greatly altered in agricultural watersheds compared to natural landscapes, which impacts sources and fates of organic carbon (OC). While mineral soil horizons in natural ecosystems primarily act as filters for dissolved organic carbon (DOC) leached from organic surface horizons, tilled soils largely lack an organic horizon and their mineral horizons therefore act as a source for both DOC and sediment to surface waters. Irrigated watersheds highlight this difference, as DOC and total suspended sediment (TSS) concentrations simultaneously increase during the low-discharge irrigation season, suggesting that sediment-associated OC may constitute a significant source of DOC. While water-soluble OC (WSOC) from sediments and soils has been found to be compositionally similar to stream DOC, these contributions remain poorly quantified in agricultural streams. To address this, we conducted abiotic solubilization experiments using sediments (suspended and bed) and soils from an irrigated agricultural watershed in northern California, USA. Sediments (R2 > 0.99) and soils (0.74 |
| doi_str_mv | 10.1016/j.jenvman.2023.118184 |
| format | Article |
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[Display omitted]
•Abiotic release of water-soluble OC was quantified for sediment and soil in an irrigated watershed.•Sediments and soils displayed linear solubilization behaviors.•Irrigation suspended sediment exhibited the largest solubilization potential.•Most solid-phase OC was insoluble in streamwater.•Field sediment export may represent a locally important source of solubilized DOC.</description><identifier>ISSN: 0301-4797</identifier><identifier>EISSN: 1095-8630</identifier><identifier>DOI: 10.1016/j.jenvman.2023.118184</identifier><identifier>PMID: 37244104</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>agricultural watersheds ; California ; Carbon ; dissolved organic carbon ; DOC solubilization ; Ecosystem ; environmental management ; Geologic Sediments ; irrigation ; mineral soils ; Minerals ; OC phase transfers ; organic horizons ; Rivers ; sediment transport ; sediments ; Soil ; solubilization ; storms ; suspended sediment ; vegetation ; Water ; water solubility ; Water-extractable OC ; Water-soluble OC</subject><ispartof>Journal of environmental management, 2023-10, Vol.343, p.118184-118184, Article 118184</ispartof><rights>2023 The Authors</rights><rights>Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c445t-23d790ff294f65587a46752d4f37058ee668cf0e94291e8dcb4849029aed4fd83</citedby><cites>FETCH-LOGICAL-c445t-23d790ff294f65587a46752d4f37058ee668cf0e94291e8dcb4849029aed4fd83</cites><orcidid>0000-0003-0272-0354 ; 0000-0003-0777-0748</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0301479723009726$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/37244104$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Matiasek, Sandrine J.</creatorcontrib><creatorcontrib>Pellerin, Brian A.</creatorcontrib><creatorcontrib>Spencer, Robert G.M.</creatorcontrib><creatorcontrib>Bergamaschi, Brian A.</creatorcontrib><creatorcontrib>Hernes, Peter J.</creatorcontrib><title>Water-soluble organic carbon release from mineral soils and sediments in an irrigated agricultural system</title><title>Journal of environmental management</title><addtitle>J Environ Manage</addtitle><description>Water interactions with soil and vegetation are greatly altered in agricultural watersheds compared to natural landscapes, which impacts sources and fates of organic carbon (OC). While mineral soil horizons in natural ecosystems primarily act as filters for dissolved organic carbon (DOC) leached from organic surface horizons, tilled soils largely lack an organic horizon and their mineral horizons therefore act as a source for both DOC and sediment to surface waters. Irrigated watersheds highlight this difference, as DOC and total suspended sediment (TSS) concentrations simultaneously increase during the low-discharge irrigation season, suggesting that sediment-associated OC may constitute a significant source of DOC. While water-soluble OC (WSOC) from sediments and soils has been found to be compositionally similar to stream DOC, these contributions remain poorly quantified in agricultural streams. To address this, we conducted abiotic solubilization experiments using sediments (suspended and bed) and soils from an irrigated agricultural watershed in northern California, USA. Sediments (R2 > 0.99) and soils (0.74 < R2 < 0.89) displayed linear solubilization behaviors over the range of concentrations tested. Suspended sediment from the irrigation season exhibited the largest solubilization efficiency (10.9 ± 1.6% TOCsediment solubilized) and potential (1.79 ± 0.26 mg WSOC g−1 dry sediment), followed by suspended sediment from a winter storm, then bed sediment and soils. Successive solubilization experiments increased the total release of WSOC by ∼50%, but most (88–97%) of the solid-phase OC remained insoluble in water. Using these solubilization potential estimates and measured TSS concentrations, we estimated that WSOC from suspended sediment in streams represented 4–7% of the annual DOC export from the watershed. However, field sediment export is much higher than what is represented by suspended sediment in the water column, therefore field-scale contributions from sediments could be much higher than estimated.
[Display omitted]
•Abiotic release of water-soluble OC was quantified for sediment and soil in an irrigated watershed.•Sediments and soils displayed linear solubilization behaviors.•Irrigation suspended sediment exhibited the largest solubilization potential.•Most solid-phase OC was insoluble in streamwater.•Field sediment export may represent a locally important source of solubilized DOC.</description><subject>agricultural watersheds</subject><subject>California</subject><subject>Carbon</subject><subject>dissolved organic carbon</subject><subject>DOC solubilization</subject><subject>Ecosystem</subject><subject>environmental management</subject><subject>Geologic Sediments</subject><subject>irrigation</subject><subject>mineral soils</subject><subject>Minerals</subject><subject>OC phase transfers</subject><subject>organic horizons</subject><subject>Rivers</subject><subject>sediment transport</subject><subject>sediments</subject><subject>Soil</subject><subject>solubilization</subject><subject>storms</subject><subject>suspended sediment</subject><subject>vegetation</subject><subject>Water</subject><subject>water solubility</subject><subject>Water-extractable OC</subject><subject>Water-soluble OC</subject><issn>0301-4797</issn><issn>1095-8630</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkU1r3DAQhkVpaLZpf0KLjr14M_qwJZ9CCGkaCPSSkKPQSuNFiywlkh3Iv6-3u8m1vczA8LwzMA8h3xisGbDufLfeYXoZbVpz4GLNmGZafiArBn3b6E7AR7ICAayRqlen5HOtOwAQnKlP5FQoLiUDuSLh0U5YmprjvIlIc9naFBx1tmxyogUj2op0KHmkY0hYbKQ1h1ipTZ5W9GHENFUa0jKgoZSwXfZ5arcluDlO89_Aa51w_EJOBhsrfj32M_Lw8_r-6ldz9_vm9uryrnFStlPDhVc9DAPv5dC1rVZWdqrlXg5CQasRu067AbCXvGeovdtILXvgvcWF8VqckR-HvU8lP89YJzOG6jBGmzDP1XAtJJdtJ_8H5QD7oha0PaCu5FoLDuaphNGWV8PA7IWYnTkKMXsh5iBkyX0_npg3I_r31JuBBbg4ALj85CVgMdUFTG55bUE3GZ_DP078AUSpn4A</recordid><startdate>20231001</startdate><enddate>20231001</enddate><creator>Matiasek, Sandrine J.</creator><creator>Pellerin, Brian A.</creator><creator>Spencer, Robert G.M.</creator><creator>Bergamaschi, Brian A.</creator><creator>Hernes, Peter J.</creator><general>Elsevier Ltd</general><scope>6I.</scope><scope>AAFTH</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>7X8</scope><scope>7S9</scope><scope>L.6</scope><orcidid>https://orcid.org/0000-0003-0272-0354</orcidid><orcidid>https://orcid.org/0000-0003-0777-0748</orcidid></search><sort><creationdate>20231001</creationdate><title>Water-soluble organic carbon release from mineral soils and sediments in an irrigated agricultural system</title><author>Matiasek, Sandrine J. ; Pellerin, Brian A. ; Spencer, Robert G.M. ; Bergamaschi, Brian A. ; Hernes, Peter J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c445t-23d790ff294f65587a46752d4f37058ee668cf0e94291e8dcb4849029aed4fd83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>agricultural watersheds</topic><topic>California</topic><topic>Carbon</topic><topic>dissolved organic carbon</topic><topic>DOC solubilization</topic><topic>Ecosystem</topic><topic>environmental management</topic><topic>Geologic Sediments</topic><topic>irrigation</topic><topic>mineral soils</topic><topic>Minerals</topic><topic>OC phase transfers</topic><topic>organic horizons</topic><topic>Rivers</topic><topic>sediment transport</topic><topic>sediments</topic><topic>Soil</topic><topic>solubilization</topic><topic>storms</topic><topic>suspended sediment</topic><topic>vegetation</topic><topic>Water</topic><topic>water solubility</topic><topic>Water-extractable OC</topic><topic>Water-soluble OC</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Matiasek, Sandrine J.</creatorcontrib><creatorcontrib>Pellerin, Brian A.</creatorcontrib><creatorcontrib>Spencer, Robert G.M.</creatorcontrib><creatorcontrib>Bergamaschi, Brian A.</creatorcontrib><creatorcontrib>Hernes, Peter J.</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>Journal of environmental management</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Matiasek, Sandrine J.</au><au>Pellerin, Brian A.</au><au>Spencer, Robert G.M.</au><au>Bergamaschi, Brian A.</au><au>Hernes, Peter J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Water-soluble organic carbon release from mineral soils and sediments in an irrigated agricultural system</atitle><jtitle>Journal of environmental management</jtitle><addtitle>J Environ Manage</addtitle><date>2023-10-01</date><risdate>2023</risdate><volume>343</volume><spage>118184</spage><epage>118184</epage><pages>118184-118184</pages><artnum>118184</artnum><issn>0301-4797</issn><eissn>1095-8630</eissn><abstract>Water interactions with soil and vegetation are greatly altered in agricultural watersheds compared to natural landscapes, which impacts sources and fates of organic carbon (OC). While mineral soil horizons in natural ecosystems primarily act as filters for dissolved organic carbon (DOC) leached from organic surface horizons, tilled soils largely lack an organic horizon and their mineral horizons therefore act as a source for both DOC and sediment to surface waters. Irrigated watersheds highlight this difference, as DOC and total suspended sediment (TSS) concentrations simultaneously increase during the low-discharge irrigation season, suggesting that sediment-associated OC may constitute a significant source of DOC. While water-soluble OC (WSOC) from sediments and soils has been found to be compositionally similar to stream DOC, these contributions remain poorly quantified in agricultural streams. To address this, we conducted abiotic solubilization experiments using sediments (suspended and bed) and soils from an irrigated agricultural watershed in northern California, USA. Sediments (R2 > 0.99) and soils (0.74 < R2 < 0.89) displayed linear solubilization behaviors over the range of concentrations tested. Suspended sediment from the irrigation season exhibited the largest solubilization efficiency (10.9 ± 1.6% TOCsediment solubilized) and potential (1.79 ± 0.26 mg WSOC g−1 dry sediment), followed by suspended sediment from a winter storm, then bed sediment and soils. Successive solubilization experiments increased the total release of WSOC by ∼50%, but most (88–97%) of the solid-phase OC remained insoluble in water. Using these solubilization potential estimates and measured TSS concentrations, we estimated that WSOC from suspended sediment in streams represented 4–7% of the annual DOC export from the watershed. However, field sediment export is much higher than what is represented by suspended sediment in the water column, therefore field-scale contributions from sediments could be much higher than estimated.
[Display omitted]
•Abiotic release of water-soluble OC was quantified for sediment and soil in an irrigated watershed.•Sediments and soils displayed linear solubilization behaviors.•Irrigation suspended sediment exhibited the largest solubilization potential.•Most solid-phase OC was insoluble in streamwater.•Field sediment export may represent a locally important source of solubilized DOC.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>37244104</pmid><doi>10.1016/j.jenvman.2023.118184</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0003-0272-0354</orcidid><orcidid>https://orcid.org/0000-0003-0777-0748</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | agricultural watersheds California Carbon dissolved organic carbon DOC solubilization Ecosystem environmental management Geologic Sediments irrigation mineral soils Minerals OC phase transfers organic horizons Rivers sediment transport sediments Soil solubilization storms suspended sediment vegetation Water water solubility Water-extractable OC Water-soluble OC |
| title | Water-soluble organic carbon release from mineral soils and sediments in an irrigated agricultural system |
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