Citrus water uptake dynamics on a sandy Florida entisol
Identifieur interne : 000492 ( PascalFrancis/Corpus ); précédent : 000491; suivant : 000493Citrus water uptake dynamics on a sandy Florida entisol
Auteurs : K. T. Morgan ; T. A. Obreza ; J. M. S. Scholberg ; L. R. Parsons ; T. A. WheatonSource :
- Soil Science Society of America journal [ 0361-5995 ] ; 2006.
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- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Florida citrus trees must be irrigated to reach maximum production due to low soil water-holding capacity. In a highly urbanizing state with limited water resources, improved understanding of soil water uptake dynamics isneeded to optimize irrigation volume and timing. The objectives of this study were: (i) estimate mature citrus daily evapotranspiration (ETc) from changes in soil water content (θ), (ii) calculate citrus crop coefficients (Kc) from ETc and reference evapotranspiration (ETo), (iii) determine the relationship of soil water stress coefficient (Ks) to θ, and (iv) evaluate how ETc was related to root length density. In a 25-mo field study using mature 'Hamlin' orange [Citrus sinensis (L.) Osbeck] trees, ETc averaged 1137 mm yr-1, and estimated Kc ranged between 0.7 and 1.1. Day of year explained more than 88% of the variation in Kc when 0 was near field capacity. The value of K, decreased steadily from 1.0 at field capacity (θ = 0.072 cm3 cm-3) to approximately 0.5 at 50% available soil water depletion (θ = 0.045 cm3 cm-3). Roots were concentrated in the top 15 cm of soil under the tree canopy (0.71 to 1.16 cm roots cm-3 soil), where maximum soil water uptake was about 1.3 mm3 mm root-1 d-1at field capacity, decreasing quadratically as 0 decreased. Estimating daily plant water uptake and resulting soil water depletion based on root length density distribution would provide a reasonable basis for a citrus soil water balance model.
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Format Inist (serveur)
| NO : | PASCAL 07-0217984 INIST |
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| ET : | Citrus water uptake dynamics on a sandy Florida entisol |
| AU : | MORGAN (K. T.); OBREZA (T. A.); SCHOLBERG (J. M. S.); PARSONS (L. R.); WHEATON (T. A.) |
| AF : | SWFREC, Univ. of Florida, 2689 SR 29N/Immokalee, FL 34142/Etats-Unis (1 aut.); Dep. of Soil and Water Science, Univ. of Florida, 2169 McCarty Hall/Gainesville, FL 32611/Etats-Unis (2 aut.); Dep. of Agronomy, Univ. of Florida, 402 Newell Hall/Gainesville, FL 32611/Etats-Unis (3 aut.); CREC, Univ. of Florida, 700 Experiment Station Rd/Lake Alfred, FL 33850/Etats-Unis (4 aut., 5 aut.) |
| DT : | Publication en série; Niveau analytique |
| SO : | Soil Science Society of America journal; ISSN 0361-5995; Coden SSSJD4; Etats-Unis; Da. 2006; Vol. 70; No. 1; Pp. 90-97; Bibl. 30 ref. |
| LA : | Anglais |
| EA : | Florida citrus trees must be irrigated to reach maximum production due to low soil water-holding capacity. In a highly urbanizing state with limited water resources, improved understanding of soil water uptake dynamics isneeded to optimize irrigation volume and timing. The objectives of this study were: (i) estimate mature citrus daily evapotranspiration (ETc) from changes in soil water content (θ), (ii) calculate citrus crop coefficients (Kc) from ETc and reference evapotranspiration (ETo), (iii) determine the relationship of soil water stress coefficient (Ks) to θ, and (iv) evaluate how ETc was related to root length density. In a 25-mo field study using mature 'Hamlin' orange [Citrus sinensis (L.) Osbeck] trees, ETc averaged 1137 mm yr-1, and estimated Kc ranged between 0.7 and 1.1. Day of year explained more than 88% of the variation in Kc when 0 was near field capacity. The value of K, decreased steadily from 1.0 at field capacity (θ = 0.072 cm3 cm-3) to approximately 0.5 at 50% available soil water depletion (θ = 0.045 cm3 cm-3). Roots were concentrated in the top 15 cm of soil under the tree canopy (0.71 to 1.16 cm roots cm-3 soil), where maximum soil water uptake was about 1.3 mm3 mm root-1 d-1at field capacity, decreasing quadratically as 0 decreased. Estimating daily plant water uptake and resulting soil water depletion based on root length density distribution would provide a reasonable basis for a citrus soil water balance model. |
| CC : | 002A32C03A3; 002A32C03B |
| FD : | Absorption eau; Caractéristique dynamique; Dynamique processus; Evapotranspiration; Irrigation; Relation sol plante; Citrus sinensis; Floride; Caractéristique sol; Entisol; Sol sableux; Humidité sol; Teneur eau; Coefficient cultural; Sol de verger; Relation sol plante eau |
| FG : | Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Etats Unis; Amérique du Nord; Amérique; Agrume; Arbre fruitier; Plante fruitière; Aménagement hydraulique; Ecophysiologie; Régime hydrique; Verger; Agrométéorologie; Propriété hydrique sol; Texture; Propriété physique; Gestion ressource eau; Zone subtropicale; Arboriculture; Science du sol; Etats du sud est (EU); Etats du sud (EU) |
| ED : | Water absorption; Dynamic characteristic; Process dynamics; Evapotranspiration; Irrigation; Soil plant relation; Citrus sinensis; Florida; Property of soil; Entisols; Sandy soil; Soil moisture; Water content; Crop coefficient; Orchard soils; Soil plant water relation |
| EG : | Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; United States; North America; America; Citrus fruit; Fruit tree; Fruit crop; Water engineering; Ecophysiology; Water regime; Orchard; Agrometeorology; Soil water properties; Texture; Physical properties; Water resource management; Subtropical zone; Arboriculture; Soil science |
| SD : | Absorción agua; Característica dinámica; Dinámica proceso; Evapotranspiración; Irrigación; Relación suelo planta; Citrus sinensis; Florida; Característica suelo; Entisols; Suelo arenoso; Humedad suelo; Dosis agua; Coeficiente cultural; Suelo de huertos; Relación suelo planta agua |
| LO : | INIST-6109.354000135332200120 |
| ID : | 07-0217984 |
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Am. j.</title><idno type="ISSN">0361-5995</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Citrus sinensis</term><term>Crop coefficient</term><term>Dynamic characteristic</term><term>Entisols</term><term>Evapotranspiration</term><term>Florida</term><term>Irrigation</term><term>Orchard soils</term><term>Process dynamics</term><term>Property of soil</term><term>Sandy soil</term><term>Soil moisture</term><term>Soil plant relation</term><term>Soil plant water relation</term><term>Water absorption</term><term>Water content</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Absorption eau</term><term>Caractéristique dynamique</term><term>Dynamique processus</term><term>Evapotranspiration</term><term>Irrigation</term><term>Relation sol plante</term><term>Citrus sinensis</term><term>Floride</term><term>Caractéristique sol</term><term>Entisol</term><term>Sol sableux</term><term>Humidité sol</term><term>Teneur eau</term><term>Coefficient cultural</term><term>Sol de verger</term><term>Relation sol plante eau</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Florida citrus trees must be irrigated to reach maximum production due to low soil water-holding capacity. In a highly urbanizing state with limited water resources, improved understanding of soil water uptake dynamics isneeded to optimize irrigation volume and timing. The objectives of this study were: (i) estimate mature citrus daily evapotranspiration (ET<sub>c</sub>) from changes in soil water content (θ), (ii) calculate citrus crop coefficients (K<sub>c</sub>) from ET<sub>c</sub> and reference evapotranspiration (ET<sub>o</sub>), (iii) determine the relationship of soil water stress coefficient (K<sub>s</sub>) to θ, and (iv) evaluate how ET<sub>c</sub> was related to root length density. In a 25-mo field study using mature 'Hamlin' orange [Citrus sinensis (L.) Osbeck] trees, ET<sub>c</sub> averaged 1137 mm yr<sup>-1</sup>, and estimated K<sub>c</sub> ranged between 0.7 and 1.1. Day of year explained more than 88% of the variation in K<sub>c</sub> when 0 was near field capacity. The value of K, decreased steadily from 1.0 at field capacity (θ = 0.072 cm<sup>3</sup> cm<sup>-3</sup>) to approximately 0.5 at 50% available soil water depletion (θ = 0.045 cm<sup>3</sup> cm<sup>-3</sup>). Roots were concentrated in the top 15 cm of soil under the tree canopy (0.71 to 1.16 cm roots cm<sup>-3</sup> soil), where maximum soil water uptake was about 1.3 mm<sup>3</sup> mm root<sup>-1</sup> d<sup>-1</sup>at field capacity, decreasing quadratically as 0 decreased. Estimating daily plant water uptake and resulting soil water depletion based on root length density distribution would provide a reasonable basis for a citrus soil water balance model.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0361-5995</s0></fA01><fA02 i1="01"><s0>SSSJD4</s0></fA02><fA03 i2="1"><s0>Soil Sci. Soc. Am. j.</s0></fA03><fA05><s2>70</s2></fA05><fA06><s2>1</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Citrus water uptake dynamics on a sandy Florida entisol</s1></fA08><fA11 i1="01" i2="1"><s1>MORGAN (K. T.)</s1></fA11><fA11 i1="02" i2="1"><s1>OBREZA (T. A.)</s1></fA11><fA11 i1="03" i2="1"><s1>SCHOLBERG (J. M. S.)</s1></fA11><fA11 i1="04" i2="1"><s1>PARSONS (L. R.)</s1></fA11><fA11 i1="05" i2="1"><s1>WHEATON (T. A.)</s1></fA11><fA14 i1="01"><s1>SWFREC, Univ. of Florida, 2689 SR 29N</s1><s2>Immokalee, FL 34142</s2><s3>USA</s3><sZ>1 aut.</sZ></fA14><fA14 i1="02"><s1>Dep. of Soil and Water Science, Univ. of Florida, 2169 McCarty Hall</s1><s2>Gainesville, FL 32611</s2><s3>USA</s3><sZ>2 aut.</sZ></fA14><fA14 i1="03"><s1>Dep. of Agronomy, Univ. of Florida, 402 Newell Hall</s1><s2>Gainesville, FL 32611</s2><s3>USA</s3><sZ>3 aut.</sZ></fA14><fA14 i1="04"><s1>CREC, Univ. of Florida, 700 Experiment Station Rd</s1><s2>Lake Alfred, FL 33850</s2><s3>USA</s3><sZ>4 aut.</sZ><sZ>5 aut.</sZ></fA14><fA20><s1>90-97</s1></fA20><fA21><s1>2006</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>6109</s2><s5>354000135332200120</s5></fA43><fA44><s0>0000</s0><s1>© 2007 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>30 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>07-0217984</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Soil Science Society of America journal</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>Florida citrus trees must be irrigated to reach maximum production due to low soil water-holding capacity. In a highly urbanizing state with limited water resources, improved understanding of soil water uptake dynamics isneeded to optimize irrigation volume and timing. The objectives of this study were: (i) estimate mature citrus daily evapotranspiration (ET<sub>c</sub>) from changes in soil water content (θ), (ii) calculate citrus crop coefficients (K<sub>c</sub>) from ET<sub>c</sub> and reference evapotranspiration (ET<sub>o</sub>), (iii) determine the relationship of soil water stress coefficient (K<sub>s</sub>) to θ, and (iv) evaluate how ET<sub>c</sub> was related to root length density. In a 25-mo field study using mature 'Hamlin' orange [Citrus sinensis (L.) Osbeck] trees, ET<sub>c</sub> averaged 1137 mm yr<sup>-1</sup>, and estimated K<sub>c</sub> ranged between 0.7 and 1.1. Day of year explained more than 88% of the variation in K<sub>c</sub> when 0 was near field capacity. The value of K, decreased steadily from 1.0 at field capacity (θ = 0.072 cm<sup>3</sup> cm<sup>-3</sup>) to approximately 0.5 at 50% available soil water depletion (θ = 0.045 cm<sup>3</sup> cm<sup>-3</sup>). Roots were concentrated in the top 15 cm of soil under the tree canopy (0.71 to 1.16 cm roots cm<sup>-3</sup> soil), where maximum soil water uptake was about 1.3 mm<sup>3</sup> mm root<sup>-1</sup> d<sup>-1</sup>at field capacity, decreasing quadratically as 0 decreased. 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i2="X" l="SPA"><s0>Estados Unidos</s0><s2>NG</s2></fC07><fC07 i1="06" i2="X" l="FRE"><s0>Amérique du Nord</s0><s2>NG</s2></fC07><fC07 i1="06" i2="X" l="ENG"><s0>North America</s0><s2>NG</s2></fC07><fC07 i1="06" i2="X" l="SPA"><s0>America del norte</s0><s2>NG</s2></fC07><fC07 i1="07" i2="X" l="FRE"><s0>Amérique</s0><s2>NG</s2></fC07><fC07 i1="07" i2="X" l="ENG"><s0>America</s0><s2>NG</s2></fC07><fC07 i1="07" i2="X" l="SPA"><s0>America</s0><s2>NG</s2></fC07><fC07 i1="08" i2="X" l="FRE"><s0>Agrume</s0><s5>31</s5></fC07><fC07 i1="08" i2="X" l="ENG"><s0>Citrus fruit</s0><s5>31</s5></fC07><fC07 i1="08" i2="X" l="SPA"><s0>Agrios</s0><s5>31</s5></fC07><fC07 i1="09" i2="X" l="FRE"><s0>Arbre fruitier</s0><s5>32</s5></fC07><fC07 i1="09" i2="X" l="ENG"><s0>Fruit tree</s0><s5>32</s5></fC07><fC07 i1="09" i2="X" l="SPA"><s0>Arbol frutal</s0><s5>32</s5></fC07><fC07 i1="10" i2="X" l="FRE"><s0>Plante fruitière</s0><s5>33</s5></fC07><fC07 i1="10" i2="X" l="ENG"><s0>Fruit crop</s0><s5>33</s5></fC07><fC07 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l="ENG"><s0>Agrometeorology</s0><s5>38</s5></fC07><fC07 i1="15" i2="X" l="SPA"><s0>Agrometeorología</s0><s5>38</s5></fC07><fC07 i1="16" i2="X" l="FRE"><s0>Propriété hydrique sol</s0><s5>39</s5></fC07><fC07 i1="16" i2="X" l="ENG"><s0>Soil water properties</s0><s5>39</s5></fC07><fC07 i1="16" i2="X" l="SPA"><s0>Propiedad hídrica</s0><s5>39</s5></fC07><fC07 i1="17" i2="X" l="FRE"><s0>Texture</s0><s5>40</s5></fC07><fC07 i1="17" i2="X" l="ENG"><s0>Texture</s0><s5>40</s5></fC07><fC07 i1="17" i2="X" l="SPA"><s0>Textura</s0><s5>40</s5></fC07><fC07 i1="18" i2="X" l="FRE"><s0>Propriété physique</s0><s5>41</s5></fC07><fC07 i1="18" i2="X" l="ENG"><s0>Physical properties</s0><s5>41</s5></fC07><fC07 i1="18" i2="X" l="SPA"><s0>Propiedad física</s0><s5>41</s5></fC07><fC07 i1="19" i2="X" l="FRE"><s0>Gestion ressource eau</s0><s5>42</s5></fC07><fC07 i1="19" i2="X" l="ENG"><s0>Water resource management</s0><s5>42</s5></fC07><fC07 i1="19" i2="X" l="SPA"><s0>Gestión recurso agua</s0><s5>42</s5></fC07><fC07 i1="20" i2="X" l="FRE"><s0>Zone subtropicale</s0><s5>59</s5></fC07><fC07 i1="20" i2="X" l="ENG"><s0>Subtropical zone</s0><s5>59</s5></fC07><fC07 i1="20" i2="X" l="SPA"><s0>Zona subtropical</s0><s5>59</s5></fC07><fC07 i1="21" i2="X" l="FRE"><s0>Arboriculture</s0><s5>64</s5></fC07><fC07 i1="21" i2="X" l="ENG"><s0>Arboriculture</s0><s5>64</s5></fC07><fC07 i1="21" i2="X" l="SPA"><s0>Arboricultura</s0><s5>64</s5></fC07><fC07 i1="22" i2="X" l="FRE"><s0>Science du sol</s0><s5>65</s5></fC07><fC07 i1="22" i2="X" l="ENG"><s0>Soil science</s0><s5>65</s5></fC07><fC07 i1="22" i2="X" l="SPA"><s0>Ciencia del suelo</s0><s5>65</s5></fC07><fC07 i1="23" i2="X" l="FRE"><s0>Etats du sud est (EU)</s0><s4>INC</s4><s5>68</s5></fC07><fC07 i1="24" i2="X" l="FRE"><s0>Etats du sud (EU)</s0><s4>INC</s4><s5>69</s5></fC07><fN21><s1>148</s1></fN21></pA></standard><server><NO>PASCAL 07-0217984 INIST</NO><ET>Citrus water uptake dynamics on a sandy Florida entisol</ET><AU>MORGAN (K. T.); OBREZA (T. A.); SCHOLBERG (J. M. S.); PARSONS (L. R.); WHEATON (T. A.)</AU><AF>SWFREC, Univ. of Florida, 2689 SR 29N/Immokalee, FL 34142/Etats-Unis (1 aut.); Dep. of Soil and Water Science, Univ. of Florida, 2169 McCarty Hall/Gainesville, FL 32611/Etats-Unis (2 aut.); Dep. of Agronomy, Univ. of Florida, 402 Newell Hall/Gainesville, FL 32611/Etats-Unis (3 aut.); CREC, Univ. of Florida, 700 Experiment Station Rd/Lake Alfred, FL 33850/Etats-Unis (4 aut., 5 aut.)</AF><DT>Publication en série; Niveau analytique</DT><SO>Soil Science Society of America journal; ISSN 0361-5995; Coden SSSJD4; Etats-Unis; Da. 2006; Vol. 70; No. 1; Pp. 90-97; Bibl. 30 ref.</SO><LA>Anglais</LA><EA>Florida citrus trees must be irrigated to reach maximum production due to low soil water-holding capacity. In a highly urbanizing state with limited water resources, improved understanding of soil water uptake dynamics isneeded to optimize irrigation volume and timing. The objectives of this study were: (i) estimate mature citrus daily evapotranspiration (ET<sub>c</sub>) from changes in soil water content (θ), (ii) calculate citrus crop coefficients (K<sub>c</sub>) from ET<sub>c</sub> and reference evapotranspiration (ET<sub>o</sub>), (iii) determine the relationship of soil water stress coefficient (K<sub>s</sub>) to θ, and (iv) evaluate how ET<sub>c</sub> was related to root length density. In a 25-mo field study using mature 'Hamlin' orange [Citrus sinensis (L.) Osbeck] trees, ET<sub>c</sub> averaged 1137 mm yr<sup>-1</sup>, and estimated K<sub>c</sub> ranged between 0.7 and 1.1. Day of year explained more than 88% of the variation in K<sub>c</sub> when 0 was near field capacity. The value of K, decreased steadily from 1.0 at field capacity (θ = 0.072 cm<sup>3</sup> cm<sup>-3</sup>) to approximately 0.5 at 50% available soil water depletion (θ = 0.045 cm<sup>3</sup> cm<sup>-3</sup>). Roots were concentrated in the top 15 cm of soil under the tree canopy (0.71 to 1.16 cm roots cm<sup>-3</sup> soil), where maximum soil water uptake was about 1.3 mm<sup>3</sup> mm root<sup>-1</sup> d<sup>-1</sup>at field capacity, decreasing quadratically as 0 decreased. Estimating daily plant water uptake and resulting soil water depletion based on root length density distribution would provide a reasonable basis for a citrus soil water balance model.</EA><CC>002A32C03A3; 002A32C03B</CC><FD>Absorption eau; Caractéristique dynamique; Dynamique processus; Evapotranspiration; Irrigation; Relation sol plante; Citrus sinensis; Floride; Caractéristique sol; Entisol; Sol sableux; Humidité sol; Teneur eau; Coefficient cultural; Sol de verger; Relation sol plante eau</FD><FG>Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; Etats Unis; Amérique du Nord; Amérique; Agrume; Arbre fruitier; Plante fruitière; Aménagement hydraulique; Ecophysiologie; Régime hydrique; Verger; Agrométéorologie; Propriété hydrique sol; Texture; Propriété physique; Gestion ressource eau; Zone subtropicale; Arboriculture; Science du sol; Etats du sud est (EU); Etats du sud (EU)</FG><ED>Water absorption; Dynamic characteristic; Process dynamics; Evapotranspiration; Irrigation; Soil plant relation; Citrus sinensis; Florida; Property of soil; Entisols; Sandy soil; Soil moisture; Water content; Crop coefficient; Orchard soils; Soil plant water relation</ED><EG>Rutaceae; Dicotyledones; Angiospermae; Spermatophyta; United States; North America; America; Citrus fruit; Fruit tree; Fruit crop; Water engineering; Ecophysiology; Water regime; Orchard; Agrometeorology; Soil water properties; Texture; Physical properties; Water resource management; Subtropical zone; Arboriculture; Soil science</EG><SD>Absorción agua; Característica dinámica; Dinámica proceso; Evapotranspiración; Irrigación; Relación suelo planta; Citrus sinensis; Florida; Característica suelo; Entisols; Suelo arenoso; Humedad suelo; Dosis agua; Coeficiente cultural; Suelo de huertos; Relación suelo planta agua</SD><LO>INIST-6109.354000135332200120</LO><ID>07-0217984</ID></server></inist></record>Pour manipuler ce document sous Unix (Dilib)
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