Effect of land‐use changes on nonpoint source pollution in the Xizhi River watershed, Guangdong, China
Identifieur interne : 001169 ( Istex/Corpus ); précédent : 001168; suivant : 001170Effect of land‐use changes on nonpoint source pollution in the Xizhi River watershed, Guangdong, China
Auteurs : Kai Xu ; Yunpeng Wang ; Hua Su ; Jingxue Yang ; Lili Li ; Cang LiuSource :
- Hydrological Processes [ 0885-6087 ] ; 2013-08-30.
Abstract
The Annualized Agricultural Non‐point Source (AnnAGNPS) pollution model has been widely used to assess and predict runoff, soil erosion, sediment and nutrient loading with a geographic information system. This article presents a case study of the effect of land‐use changes on nonpoint source (NPS) pollution using the AnnAGNPS model in the Xizhi River watershed, eastern Pearl River Delta of Guangdong province, China. The land‐use changes in the Xizhi River watershed between 1998 and 2003 were examined using the multitemporal remote sensing data. The runoff, soil erosion, sediment transport and nutrient loading 1998 and 2003 were assessed using AnnAGNPS. The effects of land‐use changes on NPS were studied by comparing the simulation results of each year. Our results showed that (i) the NPS loadings increased when forest and grass land converted into paddy, orchard and farmland land, and population size and gross domestic product size as well as the usage amounts of fertilizer and pesticide in the entire watershed were firmly correlated with the NPS loadings; (ii) the land‐use change during fast urbanization in particular when other land types were converted into the development land and buildup land led to increasing of NPS pollution; and (iii) urban land expansion showed more important effects on total organic carbon (TOC) loading compared with nitrogen and phosphorus loadings. Copyright © 2012 John Wiley & Sons, Ltd.
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DOI: 10.1002/hyp.9368
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China</mods:affiliation></affiliation><affiliation><mods:affiliation>Correspondence to: Yunpeng Wang, State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.E‐mail:</mods:affiliation></affiliation><affiliation><mods:affiliation>E-mail: wangyp@gig.ac.cn</mods:affiliation></affiliation></author><author><name sortKey="Su, Hua" sort="Su, Hua" uniqKey="Su H" first="Hua" last="Su">Hua Su</name><affiliation><mods:affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</mods:affiliation></affiliation><affiliation><mods:affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</mods:affiliation></affiliation></author><author><name sortKey="Yang, Jingxue" sort="Yang, Jingxue" uniqKey="Yang J" first="Jingxue" last="Yang">Jingxue Yang</name><affiliation><mods:affiliation>State Key Laboratory of 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China</mods:affiliation></affiliation><affiliation><mods:affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</mods:affiliation></affiliation></author><author><name sortKey="Wang, Yunpeng" sort="Wang, Yunpeng" uniqKey="Wang Y" first="Yunpeng" last="Wang">Yunpeng Wang</name><affiliation><mods:affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</mods:affiliation></affiliation><affiliation><mods:affiliation>Correspondence to: Yunpeng Wang, State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.E‐mail:</mods:affiliation></affiliation><affiliation><mods:affiliation>E-mail: wangyp@gig.ac.cn</mods:affiliation></affiliation></author><author><name sortKey="Su, Hua" sort="Su, Hua" uniqKey="Su H" first="Hua" last="Su">Hua Su</name><affiliation><mods:affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</mods:affiliation></affiliation><affiliation><mods:affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</mods:affiliation></affiliation></author><author><name sortKey="Yang, Jingxue" sort="Yang, Jingxue" uniqKey="Yang J" first="Jingxue" last="Yang">Jingxue Yang</name><affiliation><mods:affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</mods:affiliation></affiliation><affiliation><mods:affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</mods:affiliation></affiliation></author><author><name sortKey="Li, Lili" sort="Li, Lili" uniqKey="Li L" first="Lili" last="Li">Lili Li</name><affiliation><mods:affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</mods:affiliation></affiliation><affiliation><mods:affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</mods:affiliation></affiliation></author><author><name sortKey="Liu, Cang" sort="Liu, Cang" uniqKey="Liu C" first="Cang" last="Liu">Cang Liu</name><affiliation><mods:affiliation>Hunan Technical College of Water Resources and Hydro Power, 410131, Changsha, China</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Hydrological Processes</title><title level="j" type="abbrev">Hydrol. Process.</title><idno type="ISSN">0885-6087</idno><idno type="eISSN">1099-1085</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><date type="published" when="2013-08-30">2013-08-30</date><biblScope unit="volume">27</biblScope><biblScope unit="issue">18</biblScope><biblScope unit="page" from="2557">2557</biblScope><biblScope unit="page" to="2566">2566</biblScope></imprint><idno type="ISSN">0885-6087</idno></series><idno type="istex">AA0EDA0D6DCA4E24BCDB6263226042914DB950EA</idno><idno type="DOI">10.1002/hyp.9368</idno><idno type="ArticleID">HYP9368</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-6087</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">The Annualized Agricultural Non‐point Source (AnnAGNPS) pollution model has been widely used to assess and predict runoff, soil erosion, sediment and nutrient loading with a geographic information system. This article presents a case study of the effect of land‐use changes on nonpoint source (NPS) pollution using the AnnAGNPS model in the Xizhi River watershed, eastern Pearl River Delta of Guangdong province, China. The land‐use changes in the Xizhi River watershed between 1998 and 2003 were examined using the multitemporal remote sensing data. The runoff, soil erosion, sediment transport and nutrient loading 1998 and 2003 were assessed using AnnAGNPS. The effects of land‐use changes on NPS were studied by comparing the simulation results of each year. Our results showed that (i) the NPS loadings increased when forest and grass land converted into paddy, orchard and farmland land, and population size and gross domestic product size as well as the usage amounts of fertilizer and pesticide in the entire watershed were firmly correlated with the NPS loadings; (ii) the land‐use change during fast urbanization in particular when other land types were converted into the development land and buildup land led to increasing of NPS pollution; and (iii) urban land expansion showed more important effects on total organic carbon (TOC) loading compared with nitrogen and phosphorus loadings. Copyright © 2012 John Wiley & Sons, Ltd.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>Kai Xu</name><affiliations><json:string>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</json:string><json:string>Graduate University of Chinese Academy of Sciences, Beijing100049, China</json:string></affiliations></json:item><json:item><name>Yunpeng Wang</name><affiliations><json:string>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</json:string><json:string>Correspondence to: Yunpeng Wang, State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.E‐mail:</json:string><json:string>E-mail: wangyp@gig.ac.cn</json:string></affiliations></json:item><json:item><name>Hua Su</name><affiliations><json:string>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</json:string><json:string>Graduate University of Chinese Academy of Sciences, Beijing100049, China</json:string></affiliations></json:item><json:item><name>Jingxue Yang</name><affiliations><json:string>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</json:string><json:string>Graduate University of Chinese Academy of Sciences, Beijing100049, China</json:string></affiliations></json:item><json:item><name>Lili Li</name><affiliations><json:string>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</json:string><json:string>Graduate University of Chinese Academy of Sciences, Beijing100049, China</json:string></affiliations></json:item><json:item><name>Cang Liu</name><affiliations><json:string>Hunan Technical College of Water Resources and Hydro Power, 410131, Changsha, China</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>land‐use changes</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>nonpoint source pollution</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>AnnAGNPS model</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Xizhi River</value></json:item></subject><articleId><json:string>HYP9368</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><abstract>The Annualized Agricultural Non‐point Source (AnnAGNPS) pollution model has been widely used to assess and predict runoff, soil erosion, sediment and nutrient loading with a geographic information system. This article presents a case study of the effect of land‐use changes on nonpoint source (NPS) pollution using the AnnAGNPS model in the Xizhi River watershed, eastern Pearl River Delta of Guangdong province, China. The land‐use changes in the Xizhi River watershed between 1998 and 2003 were examined using the multitemporal remote sensing data. The runoff, soil erosion, sediment transport and nutrient loading 1998 and 2003 were assessed using AnnAGNPS. The effects of land‐use changes on NPS were studied by comparing the simulation results of each year. Our results showed that (i) the NPS loadings increased when forest and grass land converted into paddy, orchard and farmland land, and population size and gross domestic product size as well as the usage amounts of fertilizer and pesticide in the entire watershed were firmly correlated with the NPS loadings; (ii) the land‐use change during fast urbanization in particular when other land types were converted into the development land and buildup land led to increasing of NPS pollution; and (iii) urban land expansion showed more important effects on total organic carbon (TOC) loading compared with nitrogen and phosphorus loadings. 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No. 2006AA06A306;</note><note>Guangdong NSF - No. 8151064004000013;</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Effect of land‐use changes on nonpoint source pollution in the Xizhi River watershed, Guangdong, China</title><author xml:id="author-1"><persName><forename type="first">Kai</forename><surname>Xu</surname></persName><affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</affiliation><affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</affiliation></author><author xml:id="author-2"><persName><forename type="first">Yunpeng</forename><surname>Wang</surname></persName><email>wangyp@gig.ac.cn</email><affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</affiliation><affiliation>Correspondence to: Yunpeng Wang, State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.E‐mail:</affiliation></author><author xml:id="author-3"><persName><forename type="first">Hua</forename><surname>Su</surname></persName><affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</affiliation><affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</affiliation></author><author xml:id="author-4"><persName><forename type="first">Jingxue</forename><surname>Yang</surname></persName><affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</affiliation><affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</affiliation></author><author xml:id="author-5"><persName><forename type="first">Lili</forename><surname>Li</surname></persName><affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</affiliation><affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</affiliation></author><author xml:id="author-6"><persName><forename type="first">Cang</forename><surname>Liu</surname></persName><affiliation>Hunan Technical College of Water Resources and Hydro Power, 410131, Changsha, China</affiliation></author></analytic><monogr><title level="j">Hydrological Processes</title><title level="j" type="abbrev">Hydrol. Process.</title><idno type="pISSN">0885-6087</idno><idno type="eISSN">1099-1085</idno><idno type="DOI">10.1002/(ISSN)1099-1085</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><date type="published" when="2013-08-30"></date><biblScope unit="volume">27</biblScope><biblScope unit="issue">18</biblScope><biblScope unit="page" from="2557">2557</biblScope><biblScope unit="page" to="2566">2566</biblScope></imprint></monogr><idno type="istex">AA0EDA0D6DCA4E24BCDB6263226042914DB950EA</idno><idno type="DOI">10.1002/hyp.9368</idno><idno type="ArticleID">HYP9368</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2012-05-09</date></creation><langUsage><language ident="en">en</language></langUsage><abstract><p>The Annualized Agricultural Non‐point Source (AnnAGNPS) pollution model has been widely used to assess and predict runoff, soil erosion, sediment and nutrient loading with a geographic information system. This article presents a case study of the effect of land‐use changes on nonpoint source (NPS) pollution using the AnnAGNPS model in the Xizhi River watershed, eastern Pearl River Delta of Guangdong province, China. The land‐use changes in the Xizhi River watershed between 1998 and 2003 were examined using the multitemporal remote sensing data. The runoff, soil erosion, sediment transport and nutrient loading 1998 and 2003 were assessed using AnnAGNPS. The effects of land‐use changes on NPS were studied by comparing the simulation results of each year. Our results showed that (i) the NPS loadings increased when forest and grass land converted into paddy, orchard and farmland land, and population size and gross domestic product size as well as the usage amounts of fertilizer and pesticide in the entire watershed were firmly correlated with the NPS loadings; (ii) the land‐use change during fast urbanization in particular when other land types were converted into the development land and buildup land led to increasing of NPS pollution; and (iii) urban land expansion showed more important effects on total organic carbon (TOC) loading compared with nitrogen and phosphorus loadings. Copyright © 2012 John Wiley & Sons, Ltd.</p></abstract><textClass><keywords scheme="keyword"><list><head>keywords</head><item><term>land‐use changes</term></item><item><term>nonpoint source pollution</term></item><item><term>AnnAGNPS model</term></item><item><term>Xizhi River</term></item></list></keywords></textClass><textClass><keywords scheme="Journal Subject"><list><head>article-category</head><item><term>Research Article</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2011-10-27">Received</change><change when="2012-04-20">Registration</change><change when="2012-05-09">Created</change><change when="2013-08-30">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/AA0EDA0D6DCA4E24BCDB6263226042914DB950EA/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component type="serialArticle" version="2.0" xml:lang="en" xml:id="hyp9368"><header><publicationMeta level="product"><doi>10.1002/(ISSN)1099-1085</doi><issn type="print">0885-6087</issn><issn type="electronic">1099-1085</issn><idGroup><id type="product" value="HYP"></id></idGroup><titleGroup><title type="main" sort="HYDROLOGICAL PROCESSES">Hydrological Processes</title><title type="short">Hydrol. Process.</title></titleGroup></publicationMeta><publicationMeta level="part" position="180"><doi>10.1002/hyp.v27.18</doi><copyright ownership="publisher">Copyright © 2013 John Wiley & Sons, Ltd.</copyright><numberingGroup><numbering type="journalVolume" number="27">27</numbering><numbering type="journalIssue">18</numbering></numberingGroup><coverDate startDate="2013-08-30">30 August 2013</coverDate></publicationMeta><publicationMeta level="unit" position="30" type="article" status="forIssue"><doi>10.1002/hyp.9368</doi><idGroup><id type="unit" value="HYP9368"></id></idGroup><countGroup><count type="pageTotal" number="10"></count></countGroup><titleGroup><title type="articleCategory">Research Article</title><title type="tocHeading1">Research Articles</title></titleGroup><copyright ownership="publisher">Copyright © 2012 John Wiley & Sons, Ltd.</copyright><eventGroup><event type="manuscriptReceived" date="2011-10-27"></event><event type="manuscriptAccepted" date="2012-04-20"></event><event type="xmlCreated" agent="SPi Global" date="2012-05-09"></event><event type="publishedOnlineAccepted" date="2012-05-03"></event><event type="publishedOnlineEarlyUnpaginated" date="2012-06-05"></event><event type="firstOnline" date="2012-06-05"></event><event type="publishedOnlineFinalForm" date="2013-08-02"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:4.0.1" date="2014-03-12"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.6.4 mode:FullText" date="2015-10-01"></event></eventGroup><numberingGroup><numbering type="pageFirst">2557</numbering><numbering type="pageLast">2566</numbering></numberingGroup><correspondenceTo><lineatedText><line>Correspondence to: Yunpeng Wang, State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.</line><line>E‐mail: <email>wangyp@gig.ac.cn</email></line></lineatedText></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:HYP.HYP9368.pdf"></link></linkGroup></publicationMeta><contentMeta><titleGroup><title type="main">Effect of land‐use changes on nonpoint source pollution in the Xizhi River watershed, Guangdong, China</title><title type="short">LAND‐USE CHANGES ON NPS</title><title type="shortAuthors">K. XU <i>ET AL.</i></title></titleGroup><creators><creator creatorRole="author" xml:id="hyp9368-cr-0001" affiliationRef="#hyp9368-aff-0001 #hyp9368-aff-0002"><personName><givenNames>Kai</givenNames><familyName>Xu</familyName></personName></creator><creator creatorRole="author" xml:id="hyp9368-cr-0002" affiliationRef="#hyp9368-aff-0001" corresponding="yes"><personName><givenNames>Yunpeng</givenNames><familyName>Wang</familyName></personName></creator><creator creatorRole="author" xml:id="hyp9368-cr-0003" affiliationRef="#hyp9368-aff-0001 #hyp9368-aff-0002"><personName><givenNames>Hua</givenNames><familyName>Su</familyName></personName></creator><creator creatorRole="author" xml:id="hyp9368-cr-0004" affiliationRef="#hyp9368-aff-0001 #hyp9368-aff-0002"><personName><givenNames>Jingxue</givenNames><familyName>Yang</familyName></personName></creator><creator creatorRole="author" xml:id="hyp9368-cr-0005" affiliationRef="#hyp9368-aff-0001 #hyp9368-aff-0002"><personName><givenNames>Lili</givenNames><familyName>Li</familyName></personName></creator><creator creatorRole="author" xml:id="hyp9368-cr-0006" affiliationRef="#hyp9368-aff-0003"><personName><givenNames>Cang</givenNames><familyName>Liu</familyName></personName></creator></creators><affiliationGroup><affiliation countryCode="CN" type="organization" xml:id="hyp9368-aff-0001"><orgDiv>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry</orgDiv><orgName>Chinese Academy of Sciences</orgName><address><city>Guangzhou</city><postCode>510640</postCode><country>China</country></address></affiliation><affiliation countryCode="CN" type="organization" xml:id="hyp9368-aff-0002"><orgName>Graduate University of Chinese Academy of Sciences</orgName><address><city>Beijing</city><city>100049</city><country>China</country></address></affiliation><affiliation countryCode="CN" type="organization" xml:id="hyp9368-aff-0003"><orgName>Hunan Technical College of Water Resources and Hydro Power</orgName><address><city>Changsha</city><postCode>410131</postCode><country>China</country></address></affiliation></affiliationGroup><keywordGroup type="author"><keyword xml:id="hyp9368-kwd-0001">land‐use changes</keyword><keyword xml:id="hyp9368-kwd-0002">nonpoint source pollution</keyword><keyword xml:id="hyp9368-kwd-0003">AnnAGNPS model</keyword><keyword xml:id="hyp9368-kwd-0004">Xizhi River</keyword></keywordGroup><fundingInfo><fundingAgency>China National 863 program</fundingAgency><fundingNumber>2006AA06A306</fundingNumber></fundingInfo><fundingInfo><fundingAgency>Guangdong NSF</fundingAgency><fundingNumber>8151064004000013</fundingNumber></fundingInfo><abstractGroup><abstract type="main"><title type="main">Abstract</title><p>The Annualized Agricultural Non‐point Source (AnnAGNPS) pollution model has been widely used to assess and predict runoff, soil erosion, sediment and nutrient loading with a geographic information system. This article presents a case study of the effect of land‐use changes on nonpoint source (NPS) pollution using the AnnAGNPS model in the Xizhi River watershed, eastern Pearl River Delta of Guangdong province, China. The land‐use changes in the Xizhi River watershed between 1998 and 2003 were examined using the multitemporal remote sensing data. The runoff, soil erosion, sediment transport and nutrient loading 1998 and 2003 were assessed using AnnAGNPS. The effects of land‐use changes on NPS were studied by comparing the simulation results of each year. Our results showed that (i) the NPS loadings increased when forest and grass land converted into paddy, orchard and farmland land, and population size and gross domestic product size as well as the usage amounts of fertilizer and pesticide in the entire watershed were firmly correlated with the NPS loadings; (ii) the land‐use change during fast urbanization in particular when other land types were converted into the development land and buildup land led to increasing of NPS pollution; and (iii) urban land expansion showed more important effects on total organic carbon (TOC) loading compared with nitrogen and phosphorus loadings. Copyright © 2012 John Wiley & Sons, Ltd.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Effect of land‐use changes on nonpoint source pollution in the Xizhi River watershed, Guangdong, China</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>LAND‐USE CHANGES ON NPS</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Effect of land‐use changes on nonpoint source pollution in the Xizhi River watershed, Guangdong, China</title></titleInfo><name type="personal"><namePart type="given">Kai</namePart><namePart type="family">Xu</namePart><affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</affiliation><affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Yunpeng</namePart><namePart type="family">Wang</namePart><affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</affiliation><affiliation>Correspondence to: Yunpeng Wang, State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.E‐mail:</affiliation><affiliation>E-mail: wangyp@gig.ac.cn</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Hua</namePart><namePart type="family">Su</namePart><affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</affiliation><affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Jingxue</namePart><namePart type="family">Yang</namePart><affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</affiliation><affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Lili</namePart><namePart type="family">Li</namePart><affiliation>State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China</affiliation><affiliation>Graduate University of Chinese Academy of Sciences, Beijing100049, China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Cang</namePart><namePart type="family">Liu</namePart><affiliation>Hunan Technical College of Water Resources and Hydro Power, 410131, Changsha, China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><dateIssued encoding="w3cdtf">2013-08-30</dateIssued><dateCreated encoding="w3cdtf">2012-05-09</dateCreated><dateCaptured encoding="w3cdtf">2011-10-27</dateCaptured><dateValid encoding="w3cdtf">2012-04-20</dateValid><copyrightDate encoding="w3cdtf">2013</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract>The Annualized Agricultural Non‐point Source (AnnAGNPS) pollution model has been widely used to assess and predict runoff, soil erosion, sediment and nutrient loading with a geographic information system. This article presents a case study of the effect of land‐use changes on nonpoint source (NPS) pollution using the AnnAGNPS model in the Xizhi River watershed, eastern Pearl River Delta of Guangdong province, China. The land‐use changes in the Xizhi River watershed between 1998 and 2003 were examined using the multitemporal remote sensing data. The runoff, soil erosion, sediment transport and nutrient loading 1998 and 2003 were assessed using AnnAGNPS. The effects of land‐use changes on NPS were studied by comparing the simulation results of each year. Our results showed that (i) the NPS loadings increased when forest and grass land converted into paddy, orchard and farmland land, and population size and gross domestic product size as well as the usage amounts of fertilizer and pesticide in the entire watershed were firmly correlated with the NPS loadings; (ii) the land‐use change during fast urbanization in particular when other land types were converted into the development land and buildup land led to increasing of NPS pollution; and (iii) urban land expansion showed more important effects on total organic carbon (TOC) loading compared with nitrogen and phosphorus loadings. Copyright © 2012 John Wiley & Sons, Ltd.</abstract><note type="funding">China National 863 program - No. 2006AA06A306; </note><note type="funding">Guangdong NSF - No. 8151064004000013; </note><subject><genre>keywords</genre><topic>land‐use changes</topic><topic>nonpoint source pollution</topic><topic>AnnAGNPS model</topic><topic>Xizhi River</topic></subject><relatedItem type="host"><titleInfo><title>Hydrological Processes</title></titleInfo><titleInfo type="abbreviated"><title>Hydrol. Process.</title></titleInfo><genre type="journal">journal</genre><subject><genre>article-category</genre><topic>Research Article</topic></subject><identifier type="ISSN">0885-6087</identifier><identifier type="eISSN">1099-1085</identifier><identifier type="DOI">10.1002/(ISSN)1099-1085</identifier><identifier type="PublisherID">HYP</identifier><part><date>2013</date><detail type="volume"><caption>vol.</caption><number>27</number></detail><detail type="issue"><caption>no.</caption><number>18</number></detail><extent unit="pages"><start>2557</start><end>2566</end><total>10</total></extent></part></relatedItem><identifier type="istex">AA0EDA0D6DCA4E24BCDB6263226042914DB950EA</identifier><identifier type="DOI">10.1002/hyp.9368</identifier><identifier type="ArticleID">HYP9368</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © 2013 John Wiley & Sons, Ltd.Copyright © 2012 John Wiley & Sons, Ltd.</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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