Characterization of phosphorus accumulation and release using diffusive gradients in thin films (DGT) - linking the watershed to Taihu Lake, China
Taihu Lake is well known internationally due to its algae bloom, and phosphorus fertilization and accumulation in the watershed soil played an important role in the lake eutrophication. To explore the linkage between soil and sediment legacy P, the soils from four representative land uses in the ups...
Gespeichert in:
| Veröffentlicht in: | The Science of the total environment 2019-07, Vol.673, p.347-356 |
|---|---|
| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 356 |
|---|---|
| container_issue | |
| container_start_page | 347 |
| container_title | The Science of the total environment |
| container_volume | 673 |
| creator | Tao, Yu Dan, Dai Xuejiao, Han Changda, He Guo, Fu Fengchang, Wu |
| description | Taihu Lake is well known internationally due to its algae bloom, and phosphorus fertilization and accumulation in the watershed soil played an important role in the lake eutrophication. To explore the linkage between soil and sediment legacy P, the soils from four representative land uses in the upstream watershed and sediments from typical lake areas were sampled and analyzed for P species. Meanwhile, the DGT technology was used to characterize the labile P in the soil and sediment and its release dynamics. The results indicated that Taihu Lake was the major total phosphorus sink (TP = 481.7 ± 97 mg/kg) and wheat land the major reactive phosphorus stock (RP = 37.3 ± 9 mg/kg) in the watershed. The DGT-P dynamic with the deployment time (t) presented a downward exponential curve (f(t) = a × t–b, b > 0) and the regression parameters implied the initial P stock (a) and release rate (b) of labile P. Although the result of the extract based method was statistically correlated to the DGT measured P (p |
| doi_str_mv | 10.1016/j.scitotenv.2019.04.102 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_2210958694</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0048969719316213</els_id><sourcerecordid>2210958694</sourcerecordid><originalsourceid>FETCH-LOGICAL-c371t-3e00077c7f1d199da520f45eb8ea9786ed7f6762910e34b997c7d7ab1202586f3</originalsourceid><addsrcrecordid>eNqFkcFuGyEQhlHVqHHTvkLLMZG6LrDrZTlGbppWspSLe0YYhizOLrjAOmoeI09cVk5zLRIw0nz__Br9CH2mZEkJbb_ul0m7HDL445IRKpakKQ32Bi1ox0VVyvYtWhDSdJVoBT9H71Pak3J4R9-h85oIQWvWLNDzuldR6QzRPansgsfB4kMfUrlxSlhpPY3TcGopb3CEAVQCPCXn77Fx1pbqCPg-KuPA54Sdx7kvj3XDmPDlt9vtFa7w4PzDrMg94EdV_FIPBueAt8r1E96oB_iC10WnPqAzq4YEH1_-C_Tr-812_aPa3N3-XF9vKl1zmqsa5nW45pYaKoRRK0Zss4JdB0rwrgXDbctbJiiButkJUVDD1Y4ywlZda-sLdHmae4jh9wQpy9ElDcOgPIQpScYoEYUUTUH5CdUxpBTBykN0o4p_JCVyDkTu5Wsgcg5EkqY0WFF-ejGZdiOYV92_BApwfQKgrHp0EOdB4DUYF0FnaYL7r8lfsqKikw</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2210958694</pqid></control><display><type>article</type><title>Characterization of phosphorus accumulation and release using diffusive gradients in thin films (DGT) - linking the watershed to Taihu Lake, China</title><source>Elsevier ScienceDirect Journals</source><creator>Tao, Yu ; Dan, Dai ; Xuejiao, Han ; Changda, He ; Guo, Fu ; Fengchang, Wu</creator><creatorcontrib>Tao, Yu ; Dan, Dai ; Xuejiao, Han ; Changda, He ; Guo, Fu ; Fengchang, Wu</creatorcontrib><description>Taihu Lake is well known internationally due to its algae bloom, and phosphorus fertilization and accumulation in the watershed soil played an important role in the lake eutrophication. To explore the linkage between soil and sediment legacy P, the soils from four representative land uses in the upstream watershed and sediments from typical lake areas were sampled and analyzed for P species. Meanwhile, the DGT technology was used to characterize the labile P in the soil and sediment and its release dynamics. The results indicated that Taihu Lake was the major total phosphorus sink (TP = 481.7 ± 97 mg/kg) and wheat land the major reactive phosphorus stock (RP = 37.3 ± 9 mg/kg) in the watershed. The DGT-P dynamic with the deployment time (t) presented a downward exponential curve (f(t) = a × t–b, b > 0) and the regression parameters implied the initial P stock (a) and release rate (b) of labile P. Although the result of the extract based method was statistically correlated to the DGT measured P (p < 0.05), the DGT result had advantages over the traditional method due to its in-situ measurement and kinetic characterization of available P. Since the regression parameters reflected combined factors that impact the interaction between solid and solution P, the soil or sediment properties such as pH and organic matters need to be further studied in details, although they presented a significant correlation with DGT-P in this work. Our work provides a new insight in the rapid assessment of the size and resupply capacity of the existing legacy P stocks.
[Display omitted]
•Taihu Lake was the major total P pool and wheat land major labile P pool in the watershed.•DGT better described the available P and its release dynamics than RP measurement in the soils and sediments•Our regression parameters indicated the original P stock and release rate of reactive P.•These findings provided a helpful understanding in the reuse legacy P and integrated watershed management.</description><identifier>ISSN: 0048-9697</identifier><identifier>EISSN: 1879-1026</identifier><identifier>DOI: 10.1016/j.scitotenv.2019.04.102</identifier><identifier>PMID: 30991324</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>DGT ; Dynamic release ; Phosphorus legacy ; Soil and sediment ; Taihu</subject><ispartof>The Science of the total environment, 2019-07, Vol.673, p.347-356</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright © 2019 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c371t-3e00077c7f1d199da520f45eb8ea9786ed7f6762910e34b997c7d7ab1202586f3</citedby><cites>FETCH-LOGICAL-c371t-3e00077c7f1d199da520f45eb8ea9786ed7f6762910e34b997c7d7ab1202586f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0048969719316213$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30991324$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Tao, Yu</creatorcontrib><creatorcontrib>Dan, Dai</creatorcontrib><creatorcontrib>Xuejiao, Han</creatorcontrib><creatorcontrib>Changda, He</creatorcontrib><creatorcontrib>Guo, Fu</creatorcontrib><creatorcontrib>Fengchang, Wu</creatorcontrib><title>Characterization of phosphorus accumulation and release using diffusive gradients in thin films (DGT) - linking the watershed to Taihu Lake, China</title><title>The Science of the total environment</title><addtitle>Sci Total Environ</addtitle><description>Taihu Lake is well known internationally due to its algae bloom, and phosphorus fertilization and accumulation in the watershed soil played an important role in the lake eutrophication. To explore the linkage between soil and sediment legacy P, the soils from four representative land uses in the upstream watershed and sediments from typical lake areas were sampled and analyzed for P species. Meanwhile, the DGT technology was used to characterize the labile P in the soil and sediment and its release dynamics. The results indicated that Taihu Lake was the major total phosphorus sink (TP = 481.7 ± 97 mg/kg) and wheat land the major reactive phosphorus stock (RP = 37.3 ± 9 mg/kg) in the watershed. The DGT-P dynamic with the deployment time (t) presented a downward exponential curve (f(t) = a × t–b, b > 0) and the regression parameters implied the initial P stock (a) and release rate (b) of labile P. Although the result of the extract based method was statistically correlated to the DGT measured P (p < 0.05), the DGT result had advantages over the traditional method due to its in-situ measurement and kinetic characterization of available P. Since the regression parameters reflected combined factors that impact the interaction between solid and solution P, the soil or sediment properties such as pH and organic matters need to be further studied in details, although they presented a significant correlation with DGT-P in this work. Our work provides a new insight in the rapid assessment of the size and resupply capacity of the existing legacy P stocks.
[Display omitted]
•Taihu Lake was the major total P pool and wheat land major labile P pool in the watershed.•DGT better described the available P and its release dynamics than RP measurement in the soils and sediments•Our regression parameters indicated the original P stock and release rate of reactive P.•These findings provided a helpful understanding in the reuse legacy P and integrated watershed management.</description><subject>DGT</subject><subject>Dynamic release</subject><subject>Phosphorus legacy</subject><subject>Soil and sediment</subject><subject>Taihu</subject><issn>0048-9697</issn><issn>1879-1026</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqFkcFuGyEQhlHVqHHTvkLLMZG6LrDrZTlGbppWspSLe0YYhizOLrjAOmoeI09cVk5zLRIw0nz__Br9CH2mZEkJbb_ul0m7HDL445IRKpakKQ32Bi1ox0VVyvYtWhDSdJVoBT9H71Pak3J4R9-h85oIQWvWLNDzuldR6QzRPansgsfB4kMfUrlxSlhpPY3TcGopb3CEAVQCPCXn77Fx1pbqCPg-KuPA54Sdx7kvj3XDmPDlt9vtFa7w4PzDrMg94EdV_FIPBueAt8r1E96oB_iC10WnPqAzq4YEH1_-C_Tr-812_aPa3N3-XF9vKl1zmqsa5nW45pYaKoRRK0Zss4JdB0rwrgXDbctbJiiButkJUVDD1Y4ywlZda-sLdHmae4jh9wQpy9ElDcOgPIQpScYoEYUUTUH5CdUxpBTBykN0o4p_JCVyDkTu5Wsgcg5EkqY0WFF-ejGZdiOYV92_BApwfQKgrHp0EOdB4DUYF0FnaYL7r8lfsqKikw</recordid><startdate>20190710</startdate><enddate>20190710</enddate><creator>Tao, Yu</creator><creator>Dan, Dai</creator><creator>Xuejiao, Han</creator><creator>Changda, He</creator><creator>Guo, Fu</creator><creator>Fengchang, Wu</creator><general>Elsevier B.V</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20190710</creationdate><title>Characterization of phosphorus accumulation and release using diffusive gradients in thin films (DGT) - linking the watershed to Taihu Lake, China</title><author>Tao, Yu ; Dan, Dai ; Xuejiao, Han ; Changda, He ; Guo, Fu ; Fengchang, Wu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c371t-3e00077c7f1d199da520f45eb8ea9786ed7f6762910e34b997c7d7ab1202586f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>DGT</topic><topic>Dynamic release</topic><topic>Phosphorus legacy</topic><topic>Soil and sediment</topic><topic>Taihu</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tao, Yu</creatorcontrib><creatorcontrib>Dan, Dai</creatorcontrib><creatorcontrib>Xuejiao, Han</creatorcontrib><creatorcontrib>Changda, He</creatorcontrib><creatorcontrib>Guo, Fu</creatorcontrib><creatorcontrib>Fengchang, Wu</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The Science of the total environment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tao, Yu</au><au>Dan, Dai</au><au>Xuejiao, Han</au><au>Changda, He</au><au>Guo, Fu</au><au>Fengchang, Wu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characterization of phosphorus accumulation and release using diffusive gradients in thin films (DGT) - linking the watershed to Taihu Lake, China</atitle><jtitle>The Science of the total environment</jtitle><addtitle>Sci Total Environ</addtitle><date>2019-07-10</date><risdate>2019</risdate><volume>673</volume><spage>347</spage><epage>356</epage><pages>347-356</pages><issn>0048-9697</issn><eissn>1879-1026</eissn><abstract>Taihu Lake is well known internationally due to its algae bloom, and phosphorus fertilization and accumulation in the watershed soil played an important role in the lake eutrophication. To explore the linkage between soil and sediment legacy P, the soils from four representative land uses in the upstream watershed and sediments from typical lake areas were sampled and analyzed for P species. Meanwhile, the DGT technology was used to characterize the labile P in the soil and sediment and its release dynamics. The results indicated that Taihu Lake was the major total phosphorus sink (TP = 481.7 ± 97 mg/kg) and wheat land the major reactive phosphorus stock (RP = 37.3 ± 9 mg/kg) in the watershed. The DGT-P dynamic with the deployment time (t) presented a downward exponential curve (f(t) = a × t–b, b > 0) and the regression parameters implied the initial P stock (a) and release rate (b) of labile P. Although the result of the extract based method was statistically correlated to the DGT measured P (p < 0.05), the DGT result had advantages over the traditional method due to its in-situ measurement and kinetic characterization of available P. Since the regression parameters reflected combined factors that impact the interaction between solid and solution P, the soil or sediment properties such as pH and organic matters need to be further studied in details, although they presented a significant correlation with DGT-P in this work. Our work provides a new insight in the rapid assessment of the size and resupply capacity of the existing legacy P stocks.
[Display omitted]
•Taihu Lake was the major total P pool and wheat land major labile P pool in the watershed.•DGT better described the available P and its release dynamics than RP measurement in the soils and sediments•Our regression parameters indicated the original P stock and release rate of reactive P.•These findings provided a helpful understanding in the reuse legacy P and integrated watershed management.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>30991324</pmid><doi>10.1016/j.scitotenv.2019.04.102</doi><tpages>10</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0048-9697 |
| ispartof | The Science of the total environment, 2019-07, Vol.673, p.347-356 |
| issn | 0048-9697 1879-1026 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2210958694 |
| source | Elsevier ScienceDirect Journals |
| subjects | DGT Dynamic release Phosphorus legacy Soil and sediment Taihu |
| title | Characterization of phosphorus accumulation and release using diffusive gradients in thin films (DGT) - linking the watershed to Taihu Lake, China |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-09T20%3A24%3A45IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Characterization%20of%20phosphorus%20accumulation%20and%20release%20using%20diffusive%20gradients%20in%20thin%20films%20(DGT)%20-%20linking%20the%20watershed%20to%20Taihu%20Lake,%20China&rft.jtitle=The%20Science%20of%20the%20total%20environment&rft.au=Tao,%20Yu&rft.date=2019-07-10&rft.volume=673&rft.spage=347&rft.epage=356&rft.pages=347-356&rft.issn=0048-9697&rft.eissn=1879-1026&rft_id=info:doi/10.1016/j.scitotenv.2019.04.102&rft_dat=%3Cproquest_cross%3E2210958694%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2210958694&rft_id=info:pmid/30991324&rft_els_id=S0048969719316213&rfr_iscdi=true |