OrangerV1, Main, Merge, bibRecord, 003630

Chemical composition of throughfall and stemflow from citrus canopies

Identifieur interne : 003630 ( Main/Merge ); précédent : 003629; suivant : 003631

Chemical composition of throughfall and stemflow from citrus canopies

Auteurs : Y. C. Li [États-Unis] ; A. K. Alva [États-Unis] ; D. V. Calvert [États-Unis] ; M. Zhang [États-Unis]

Source :

Journal of plant nutrition [ 0190-4167 ] ; 1997.

RBID : Pascal:98-0004352

Descripteurs français

Pascal (Inist)
- Composition chimique, Pluie, Canopée, Nutrition, Absorption, Feuille végétal, Citrus paradisi, Citrus sinensis, Ammonium, Nitrate, Potassium, Calcium, Magnésium, Pluviolessivat.
Wicri :
- topic : Nutrition, Potassium, Calcium, Magnésium.

English descriptors

KwdEn :
- Absorption, Ammonium, Calcium, Canopy(vegetation), Chemical composition, Citrus paradisi, Citrus sinensis, Leaf leachate, Magnesium, Nitrates, Nutrition, Plant leaf, Potassium, Rain.

Abstract

The main objective ofthis study was to examine the chemical composition of incident rainfall, throughfall, and stemflow from canopies of'Marsh' grapefruit, and 'Hamlin' and 'Temple' orange trees. The concentrations of ammonium (NH₄) and nitrate (NO₃) were lower in the throughfall under the canopy or along the dripline as compared to those in the incident rainfall. This reduction is due to absorption of those nitrogen (N) forms by the tree foliage, thus, provides an evidence of contribution of (N) through wet deposition to N requirement of the trees. In contrast, concentrations of potassium (K), calcium (Ca), magnesium (Mg), and chloride (Cl) were greater in the throughfall or along the dripline compared to those in the incident rainfall. This is due to possible leaching of those elements from the foliage by the rainwater. Stemflow and throughfall also had greater pH and electrical conductivity (only in two out of three citrus varieties) as compared to the incident rainfall. Good correlation were found between concentrations of either K, Mg, or Ca, and Cl, phosphorus (P), or sulfur (S) in the incident rainfall for two storm events.

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Pascal:98-0004352

Le document en format XML

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<author><name sortKey="Calvert, D V" sort="Calvert, D V" uniqKey="Calvert D" first="D. V." last="Calvert">D. V. Calvert</name>
<affiliation wicri:level="2"><inist:fA14 i1="03"><s1>University of Florida, Institute of Food and Agricultural Sciences, Tropical Research and Education Center</s1>
<s2>Fort Pierce, FL 34945-3138</s2>
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<author><name sortKey="Zhang, M" sort="Zhang, M" uniqKey="Zhang M" first="M." last="Zhang">M. Zhang</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Chemical composition of throughfall and stemflow from citrus canopies</title>
<author><name sortKey="Li, Y C" sort="Li, Y C" uniqKey="Li Y" first="Y. C." last="Li">Y. C. Li</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Florida, Institute of Food and Agricultural Sciences, Tropical Research and Education Center</s1>
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<author><name sortKey="Alva, A K" sort="Alva, A K" uniqKey="Alva A" first="A. K." last="Alva">A. K. Alva</name>
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<author><name sortKey="Calvert, D V" sort="Calvert, D V" uniqKey="Calvert D" first="D. V." last="Calvert">D. V. Calvert</name>
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<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
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<author><name sortKey="Zhang, M" sort="Zhang, M" uniqKey="Zhang M" first="M." last="Zhang">M. Zhang</name>
<affiliation wicri:level="2"><inist:fA14 i1="03"><s1>University of Florida, Institute of Food and Agricultural Sciences, Tropical Research and Education Center</s1>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Absorption</term>
<term>Ammonium</term>
<term>Calcium</term>
<term>Canopy(vegetation)</term>
<term>Chemical composition</term>
<term>Citrus paradisi</term>
<term>Citrus sinensis</term>
<term>Leaf leachate</term>
<term>Magnesium</term>
<term>Nitrates</term>
<term>Nutrition</term>
<term>Plant leaf</term>
<term>Potassium</term>
<term>Rain</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Composition chimique</term>
<term>Pluie</term>
<term>Canopée</term>
<term>Nutrition</term>
<term>Absorption</term>
<term>Feuille végétal</term>
<term>Citrus paradisi</term>
<term>Citrus sinensis</term>
<term>Ammonium</term>
<term>Nitrate</term>
<term>Potassium</term>
<term>Calcium</term>
<term>Magnésium</term>
<term>Pluviolessivat</term>
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<term>Potassium</term>
<term>Calcium</term>
<term>Magnésium</term>
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<front><div type="abstract" xml:lang="en">The main objective ofthis study was to examine the chemical composition of incident rainfall, throughfall, and stemflow from canopies of'Marsh' grapefruit, and 'Hamlin' and 'Temple' orange trees. The concentrations of ammonium (NH<sub>4</sub>
) and nitrate (NO<sub>3</sub>
) were lower in the throughfall under the canopy or along the dripline as compared to those in the incident rainfall. This reduction is due to absorption of those nitrogen (N) forms by the tree foliage, thus, provides an evidence of contribution of (N) through wet deposition to N requirement of the trees. In contrast, concentrations of potassium (K), calcium (Ca), magnesium (Mg), and chloride (Cl) were greater in the throughfall or along the dripline compared to those in the incident rainfall. This is due to possible leaching of those elements from the foliage by the rainwater. Stemflow and throughfall also had greater pH and electrical conductivity (only in two out of three citrus varieties) as compared to the incident rainfall. Good correlation were found between concentrations of either K, Mg, or Ca, and Cl, phosphorus (P), or sulfur (S) in the incident rainfall for two storm events.</div>
</front>
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<affiliations><list><country><li>États-Unis</li>
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<region><li>Floride</li>
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<name sortKey="Calvert, D V" sort="Calvert, D V" uniqKey="Calvert D" first="D. V." last="Calvert">D. V. Calvert</name>
<name sortKey="Zhang, M" sort="Zhang, M" uniqKey="Zhang M" first="M." last="Zhang">M. Zhang</name>
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Chemical composition of throughfall and stemflow from citrus canopies

Chemical composition of throughfall and stemflow from citrus canopies

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri