SPATIAL VARIABILITY OF SOIL PHYSICAL PROPERTIES IN A REGION OF THE LOESS PLATEAU OF PR CHINA SUBJECT TO WIND AND WATER EROSION
Identifieur interne : 000323 ( Main/Exploration ); précédent : 000322; suivant : 000324SPATIAL VARIABILITY OF SOIL PHYSICAL PROPERTIES IN A REGION OF THE LOESS PLATEAU OF PR CHINA SUBJECT TO WIND AND WATER EROSION
Auteurs : Y. Q. Wang [République populaire de Chine] ; M. A. Shao [République populaire de Chine]Source :
- Land Degradation & Development [ 1085-3278 ] ; 2013-05.
Abstract
The analysis of the spatial variability of soil properties is important for land management and construction of an ecological environment. The objectives of this study were to investigate the spatial variability of saturated hydraulic conductivity (KS), total porosity (TP), capillary porosity (CP) and bulk density (BD) in relation to land use in a 0·54 km2 watershed on the Loess Plateau. Topsoil samples (0–5 cm) from 154 sites within the watershed were collected and analyzed by classical and geostatistical statistics in the summer of 2009. The results from the classical statistical analyses indicated that TP, CP and BD had low variability whereas KS had high variability with the watershed. Farmland had significantly lower BD and higher TP and CP than grassland, shrubland and woodland (p < 0·05). Geostatistical analyses revealed that the KS semivariogram was best fit by a spherical model, the CP semivariogram was best fit by an exponential model and the TP and BD semivariograms were best fit by Gaussian models. The nugget to sill ratios and fractal dimension values indicated that all four soil properties had strong spatial dependence. Moran's I analysis showed that a 100‐m sampling interval would be adequate for detecting the spatial structure of the four soil physical properties within the watershed. Spatial interpolation maps could provide useful information for precision agriculture practices and ecological management. Copyright © 2011 John Wiley & Sons, Ltd.
Url:
DOI: 10.1002/ldr.1128
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 001166
- to stream Istex, to step Curation: 001098
- to stream Istex, to step Checkpoint: 000016
- to stream Main, to step Merge: 000322
- to stream Main, to step Curation: 000323
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">SPATIAL VARIABILITY OF SOIL PHYSICAL PROPERTIES IN A REGION OF THE LOESS PLATEAU OF PR CHINA SUBJECT TO WIND AND WATER EROSION</title><author><name sortKey="Wang, Y Q" sort="Wang, Y Q" uniqKey="Wang Y" first="Y. Q." last="Wang">Y. Q. Wang</name></author><author><name sortKey="Shao, M A" sort="Shao, M A" uniqKey="Shao M" first="M. A." last="Shao">M. A. Shao</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:AC95BCD60415F6ECFF5304D5CAC4B6D2E8F3C802</idno><date when="2013" year="2013">2013</date><idno type="doi">10.1002/ldr.1128</idno><idno type="url">https://api.istex.fr/document/AC95BCD60415F6ECFF5304D5CAC4B6D2E8F3C802/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001166</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001166</idno><idno type="wicri:Area/Istex/Curation">001098</idno><idno type="wicri:Area/Istex/Checkpoint">000016</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000016</idno><idno type="wicri:doubleKey">1085-3278:2013:Wang Y:spatial:variability:of</idno><idno type="wicri:Area/Main/Merge">000322</idno><idno type="wicri:Area/Main/Curation">000323</idno><idno type="wicri:Area/Main/Exploration">000323</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">SPATIAL VARIABILITY OF SOIL PHYSICAL PROPERTIES IN A REGION OF THE LOESS PLATEAU OF PR CHINA SUBJECT TO WIND AND WATER EROSION</title><author><name sortKey="Wang, Y Q" sort="Wang, Y Q" uniqKey="Wang Y" first="Y. Q." last="Wang">Y. Q. Wang</name><affiliation wicri:level="1"><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, PR</wicri:regionArea><wicri:noRegion>PR</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and the Ministry of Water Resources, Yangling, PR, 712100, Shaanxi</wicri:regionArea><wicri:noRegion>Shaanxi</wicri:noRegion></affiliation></author><author><name sortKey="Shao, M A" sort="Shao, M A" uniqKey="Shao M" first="M. A." last="Shao">M. A. Shao</name><affiliation wicri:level="1"><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and the Ministry of Water Resources, Yangling, 712100, Shaanxi, PR</wicri:regionArea><wicri:noRegion>PR</wicri:noRegion></affiliation><affiliation wicri:level="3"><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, PR, 100039, Beijing</wicri:regionArea><placeName><settlement type="city">Pékin</settlement></placeName></affiliation><affiliation></affiliation><affiliation wicri:level="1"><country wicri:rule="url">République populaire de Chine</country></affiliation></author></analytic><monogr></monogr><series><title level="j">Land Degradation & Development</title><title level="j" type="abbrev">Land Degrad. Develop.</title><idno type="ISSN">1085-3278</idno><idno type="eISSN">1099-145X</idno><imprint><publisher>John Wiley & Sons, Ltd</publisher><pubPlace>Chichester, UK</pubPlace><date type="published" when="2013-05">2013-05</date><biblScope unit="volume">24</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="296">296</biblScope><biblScope unit="page" to="304">304</biblScope></imprint><idno type="ISSN">1085-3278</idno></series><idno type="istex">AC95BCD60415F6ECFF5304D5CAC4B6D2E8F3C802</idno><idno type="DOI">10.1002/ldr.1128</idno><idno type="ArticleID">LDR1128</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1085-3278</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">The analysis of the spatial variability of soil properties is important for land management and construction of an ecological environment. The objectives of this study were to investigate the spatial variability of saturated hydraulic conductivity (KS), total porosity (TP), capillary porosity (CP) and bulk density (BD) in relation to land use in a 0·54 km2 watershed on the Loess Plateau. Topsoil samples (0–5 cm) from 154 sites within the watershed were collected and analyzed by classical and geostatistical statistics in the summer of 2009. The results from the classical statistical analyses indicated that TP, CP and BD had low variability whereas KS had high variability with the watershed. Farmland had significantly lower BD and higher TP and CP than grassland, shrubland and woodland (p < 0·05). Geostatistical analyses revealed that the KS semivariogram was best fit by a spherical model, the CP semivariogram was best fit by an exponential model and the TP and BD semivariograms were best fit by Gaussian models. The nugget to sill ratios and fractal dimension values indicated that all four soil properties had strong spatial dependence. Moran's I analysis showed that a 100‐m sampling interval would be adequate for detecting the spatial structure of the four soil physical properties within the watershed. Spatial interpolation maps could provide useful information for precision agriculture practices and ecological management. Copyright © 2011 John Wiley & Sons, Ltd.</div></front></TEI><affiliations><list><country><li>République populaire de Chine</li></country><settlement><li>Pékin</li></settlement></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Wang, Y Q" sort="Wang, Y Q" uniqKey="Wang Y" first="Y. Q." last="Wang">Y. Q. Wang</name></noRegion><name sortKey="Shao, M A" sort="Shao, M A" uniqKey="Shao M" first="M. A." last="Shao">M. A. Shao</name><name sortKey="Shao, M A" sort="Shao, M A" uniqKey="Shao M" first="M. A." last="Shao">M. A. Shao</name><name sortKey="Shao, M A" sort="Shao, M A" uniqKey="Shao M" first="M. A." last="Shao">M. A. Shao</name><name sortKey="Wang, Y Q" sort="Wang, Y Q" uniqKey="Wang Y" first="Y. Q." last="Wang">Y. Q. Wang</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Agronomie/explor/SisAgriV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000323 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000323 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Agronomie
|area= SisAgriV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:AC95BCD60415F6ECFF5304D5CAC4B6D2E8F3C802
|texte= SPATIAL VARIABILITY OF SOIL PHYSICAL PROPERTIES IN A REGION OF THE LOESS PLATEAU OF PR CHINA SUBJECT TO WIND AND WATER EROSION
}}
| This area was generated with Dilib version V0.6.28. |  |