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Costing yield loss from acidity, sodicity and dryland salinity to Australian agriculture

Identifieur interne : 000B99 ( Istex/Corpus ); précédent : 000B98; suivant : 000C00

Costing yield loss from acidity, sodicity and dryland salinity to Australian agriculture

Auteurs : S. Hajkowicz ; M. Young

Source :

RBID : ISTEX:0B07224A18F73776A4CF14045B31B3BED2F63E74

English descriptors

Abstract

Salinity, sodicity and acidity are three major soil constraints that limit crop and pasture yields in Australia. In this paper estimates are made of the potential benefits arising from their treatment by measuring and mapping their impact on agricultural profit. This is achieved by estimating the increase in profit for Australia's main commodities that would occur if the three soil constraints were costlessly ameliorated. These estimates reveal the upper achievable limit on investment returns. They are also indicative of each soil constraint's economic significance to Australian agriculture. It was found that costless removal of salinity would increase annual profits by A$187 million, sodicity by A$1034·6 million and acidity by A$1584·5 million. This equates to 2·9 per cent, 15·8 per cent and 24·2 per cent of total net economic return. It was also found that worsening salinity extent and severity over 2000–2020 has a present value of A$496–A$712 million. Although soil salinity is currently the focus of much public attention, this analysis suggests that from a production viewpoint the correction of sodic and acidic soils may create greater private economic benefit. Opportunities vary considerably among industries. In particular, there is considerable opportunity for the horticultural and viticultural sector to address acidity issues. Whether gross benefits translate into net benefits is a complex question requiring access to context and location‐specific information. Copyright © 2005 John Wiley & Sons, Ltd.

Url:
DOI: 10.1002/ldr.670

Links to Exploration step

ISTEX:0B07224A18F73776A4CF14045B31B3BED2F63E74

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<placeTerm type="text">Chichester, UK</placeTerm>
</place>
<dateIssued encoding="w3cdtf">2005-09</dateIssued>
<dateCaptured encoding="w3cdtf">2004-04-19</dateCaptured>
<dateValid encoding="w3cdtf">2004-11-08</dateValid>
<copyrightDate encoding="w3cdtf">2005</copyrightDate>
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<language>
<languageTerm type="code" authority="rfc3066">en</languageTerm>
<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
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<extent unit="figures">6</extent>
<extent unit="tables">3</extent>
<extent unit="references">34</extent>
</physicalDescription>
<abstract lang="en">Salinity, sodicity and acidity are three major soil constraints that limit crop and pasture yields in Australia. In this paper estimates are made of the potential benefits arising from their treatment by measuring and mapping their impact on agricultural profit. This is achieved by estimating the increase in profit for Australia's main commodities that would occur if the three soil constraints were costlessly ameliorated. These estimates reveal the upper achievable limit on investment returns. They are also indicative of each soil constraint's economic significance to Australian agriculture. It was found that costless removal of salinity would increase annual profits by A$187 million, sodicity by A$1034·6 million and acidity by A$1584·5 million. This equates to 2·9 per cent, 15·8 per cent and 24·2 per cent of total net economic return. It was also found that worsening salinity extent and severity over 2000–2020 has a present value of A$496–A$712 million. Although soil salinity is currently the focus of much public attention, this analysis suggests that from a production viewpoint the correction of sodic and acidic soils may create greater private economic benefit. Opportunities vary considerably among industries. In particular, there is considerable opportunity for the horticultural and viticultural sector to address acidity issues. Whether gross benefits translate into net benefits is a complex question requiring access to context and location‐specific information. Copyright © 2005 John Wiley & Sons, Ltd.</abstract>
<note type="funding">National Land and Water Resources Audit (NLWRA), Australia</note>
<subject lang="en">
<genre>keywords</genre>
<topic>salinity</topic>
<topic>sodicity</topic>
<topic>acidity</topic>
<topic>economics</topic>
<topic>cost</topic>
<topic>Australia</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>Land Degradation & Development</title>
</titleInfo>
<titleInfo type="abbreviated">
<title>Land Degrad. Dev.</title>
</titleInfo>
<genre type="journal">journal</genre>
<subject>
<genre>article-category</genre>
<topic>Research Article</topic>
</subject>
<identifier type="ISSN">1085-3278</identifier>
<identifier type="eISSN">1099-145X</identifier>
<identifier type="DOI">10.1002/(ISSN)1099-145X</identifier>
<identifier type="PublisherID">LDR</identifier>
<part>
<date>2005</date>
<detail type="volume">
<caption>vol.</caption>
<number>16</number>
</detail>
<detail type="issue">
<caption>no.</caption>
<number>5</number>
</detail>
<extent unit="pages">
<start>417</start>
<end>433</end>
<total>17</total>
</extent>
</part>
</relatedItem>
<identifier type="istex">0B07224A18F73776A4CF14045B31B3BED2F63E74</identifier>
<identifier type="DOI">10.1002/ldr.670</identifier>
<identifier type="ArticleID">LDR670</identifier>
<accessCondition type="use and reproduction" contentType="copyright">Copyright © 2005 John Wiley & Sons, Ltd.</accessCondition>
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<recordContentSource>WILEY</recordContentSource>
<recordOrigin>John Wiley & Sons, Ltd.</recordOrigin>
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