Impact of tapping and soil water status on fine root dynamics in a rubber tree plantation in Thailand
Fine roots (FR) play a major role in the water and nutrient uptake of plants and contribute significantly to the carbon and nutrient cycles of ecosystems through their annual production and turnover. FR growth dynamics were studied to understand the endogenous and exogenous factors driving these processes in a 14-year-old plantation of rubber trees located in easternThailand. FR dynamicswere observed using field rhizotrons from October 2007 to October 2009.This period covered two complete dry seasons (November to March) and two complete rainy seasons (April to October), allowing us to study the effect of rainfall seasonality on FR dynamics. Rainfall and its distribution during the two successive years showed strong differences with 1500 and 950 mm in 2008 and 2009, respectively. FR production (FRP) completely stopped during the dry seasons and resumed quickly after the first rains. During the rainy seasons, FRP and the daily root elongation rate (RER)were highly variable and exhibited strong annual variations with a total FRP of 139.8 and 40.4mm?2 and an average RER of 0.16 and 0.12 cm day?1 in 2008 and 2009, respectively. The significant positive correlations found between FRP, RER, the appearance of new roots, and rainfall at monthly intervals revealed the impact of rainfall seasonality on FR dynamics. However, the rainfall patterns failed to explain the weekly variations of FR dynamics observed particularly during the rainy seasons. At this time step, FRP, RER, and the appearance of new FR were negatively correlated to the average soil matric potential measured at a depth of between 30 and 60 cm. In addition, our study revealed a significant negative correlation between FR dynamics and the monthly production of dry rubber. Consequently, latex harvesting might disturb carbon dynamics in the whole tree, far beyond the trunk where the tapping was performed. These results exhibit the impact of climatic conditions and tapping system in the carbon budget of rubber plantations.
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dig-cirad-fr-5724112024-01-28T21:52:58Z http://agritrop.cirad.fr/572411/ http://agritrop.cirad.fr/572411/ Impact of tapping and soil water status on fine root dynamics in a rubber tree plantation in Thailand. Chairungsee Naruenat, Gay Frédéric, Thaler Philippe, Kasemsap Poonpipope, Thanisawanyangkura Sornprach, Chantuma Arak, Jourdan Christophe. 2013. Frontiers in Plant Science, 4 (538), 11 p.https://doi.org/10.3389/fpls.2013.00538 <https://doi.org/10.3389/fpls.2013.00538> Impact of tapping and soil water status on fine root dynamics in a rubber tree plantation in Thailand Chairungsee, Naruenat Gay, Frédéric Thaler, Philippe Kasemsap, Poonpipope Thanisawanyangkura, Sornprach Chantuma, Arak Jourdan, Christophe eng 2013 Frontiers in Plant Science F62 - Physiologie végétale - Croissance et développement F61 - Physiologie végétale - Nutrition F01 - Culture des plantes P33 - Chimie et physique du sol Hevea brasiliensis racine croissance taux de croissance teneur en eau du sol précipitation variation saisonnière facteur climatique récolte latex http://aims.fao.org/aos/agrovoc/c_3589 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_16130 http://aims.fao.org/aos/agrovoc/c_7208 http://aims.fao.org/aos/agrovoc/c_6161 http://aims.fao.org/aos/agrovoc/c_24894 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_3500 http://aims.fao.org/aos/agrovoc/c_4214 Thaïlande http://aims.fao.org/aos/agrovoc/c_7701 Fine roots (FR) play a major role in the water and nutrient uptake of plants and contribute significantly to the carbon and nutrient cycles of ecosystems through their annual production and turnover. FR growth dynamics were studied to understand the endogenous and exogenous factors driving these processes in a 14-year-old plantation of rubber trees located in easternThailand. FR dynamicswere observed using field rhizotrons from October 2007 to October 2009.This period covered two complete dry seasons (November to March) and two complete rainy seasons (April to October), allowing us to study the effect of rainfall seasonality on FR dynamics. Rainfall and its distribution during the two successive years showed strong differences with 1500 and 950 mm in 2008 and 2009, respectively. FR production (FRP) completely stopped during the dry seasons and resumed quickly after the first rains. During the rainy seasons, FRP and the daily root elongation rate (RER)were highly variable and exhibited strong annual variations with a total FRP of 139.8 and 40.4mm?2 and an average RER of 0.16 and 0.12 cm day?1 in 2008 and 2009, respectively. The significant positive correlations found between FRP, RER, the appearance of new roots, and rainfall at monthly intervals revealed the impact of rainfall seasonality on FR dynamics. However, the rainfall patterns failed to explain the weekly variations of FR dynamics observed particularly during the rainy seasons. At this time step, FRP, RER, and the appearance of new FR were negatively correlated to the average soil matric potential measured at a depth of between 30 and 60 cm. In addition, our study revealed a significant negative correlation between FR dynamics and the monthly production of dry rubber. Consequently, latex harvesting might disturb carbon dynamics in the whole tree, far beyond the trunk where the tapping was performed. These results exhibit the impact of climatic conditions and tapping system in the carbon budget of rubber plantations. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/572411/1/document_572411.pdf application/pdf Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.3389/fpls.2013.00538 10.3389/fpls.2013.00538 info:eu-repo/semantics/altIdentifier/doi/10.3389/fpls.2013.00538 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.3389/fpls.2013.00538 |
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F62 - Physiologie végétale - Croissance et développement F61 - Physiologie végétale - Nutrition F01 - Culture des plantes P33 - Chimie et physique du sol Hevea brasiliensis racine croissance taux de croissance teneur en eau du sol précipitation variation saisonnière facteur climatique récolte latex http://aims.fao.org/aos/agrovoc/c_3589 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_16130 http://aims.fao.org/aos/agrovoc/c_7208 http://aims.fao.org/aos/agrovoc/c_6161 http://aims.fao.org/aos/agrovoc/c_24894 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_3500 http://aims.fao.org/aos/agrovoc/c_4214 http://aims.fao.org/aos/agrovoc/c_7701 F62 - Physiologie végétale - Croissance et développement F61 - Physiologie végétale - Nutrition F01 - Culture des plantes P33 - Chimie et physique du sol Hevea brasiliensis racine croissance taux de croissance teneur en eau du sol précipitation variation saisonnière facteur climatique récolte latex http://aims.fao.org/aos/agrovoc/c_3589 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_16130 http://aims.fao.org/aos/agrovoc/c_7208 http://aims.fao.org/aos/agrovoc/c_6161 http://aims.fao.org/aos/agrovoc/c_24894 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_3500 http://aims.fao.org/aos/agrovoc/c_4214 http://aims.fao.org/aos/agrovoc/c_7701 |
spellingShingle |
F62 - Physiologie végétale - Croissance et développement F61 - Physiologie végétale - Nutrition F01 - Culture des plantes P33 - Chimie et physique du sol Hevea brasiliensis racine croissance taux de croissance teneur en eau du sol précipitation variation saisonnière facteur climatique récolte latex http://aims.fao.org/aos/agrovoc/c_3589 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_16130 http://aims.fao.org/aos/agrovoc/c_7208 http://aims.fao.org/aos/agrovoc/c_6161 http://aims.fao.org/aos/agrovoc/c_24894 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_3500 http://aims.fao.org/aos/agrovoc/c_4214 http://aims.fao.org/aos/agrovoc/c_7701 F62 - Physiologie végétale - Croissance et développement F61 - Physiologie végétale - Nutrition F01 - Culture des plantes P33 - Chimie et physique du sol Hevea brasiliensis racine croissance taux de croissance teneur en eau du sol précipitation variation saisonnière facteur climatique récolte latex http://aims.fao.org/aos/agrovoc/c_3589 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_16130 http://aims.fao.org/aos/agrovoc/c_7208 http://aims.fao.org/aos/agrovoc/c_6161 http://aims.fao.org/aos/agrovoc/c_24894 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_3500 http://aims.fao.org/aos/agrovoc/c_4214 http://aims.fao.org/aos/agrovoc/c_7701 Chairungsee, Naruenat Gay, Frédéric Thaler, Philippe Kasemsap, Poonpipope Thanisawanyangkura, Sornprach Chantuma, Arak Jourdan, Christophe Impact of tapping and soil water status on fine root dynamics in a rubber tree plantation in Thailand |
description |
Fine roots (FR) play a major role in the water and nutrient uptake of plants and contribute significantly to the carbon and nutrient cycles of ecosystems through their annual production and turnover. FR growth dynamics were studied to understand the endogenous and exogenous factors driving these processes in a 14-year-old plantation of rubber trees located in easternThailand. FR dynamicswere observed using field rhizotrons from October 2007 to October 2009.This period covered two complete dry seasons (November to March) and two complete rainy seasons (April to October), allowing us to study the effect of rainfall seasonality on FR dynamics. Rainfall and its distribution during the two successive years showed strong differences with 1500 and 950 mm in 2008 and 2009, respectively. FR production (FRP) completely stopped during the dry seasons and resumed quickly after the first rains. During the rainy seasons, FRP and the daily root elongation rate (RER)were highly variable and exhibited strong annual variations with a total FRP of 139.8 and 40.4mm?2 and an average RER of 0.16 and 0.12 cm day?1 in 2008 and 2009, respectively. The significant positive correlations found between FRP, RER, the appearance of new roots, and rainfall at monthly intervals revealed the impact of rainfall seasonality on FR dynamics. However, the rainfall patterns failed to explain the weekly variations of FR dynamics observed particularly during the rainy seasons. At this time step, FRP, RER, and the appearance of new FR were negatively correlated to the average soil matric potential measured at a depth of between 30 and 60 cm. In addition, our study revealed a significant negative correlation between FR dynamics and the monthly production of dry rubber. Consequently, latex harvesting might disturb carbon dynamics in the whole tree, far beyond the trunk where the tapping was performed. These results exhibit the impact of climatic conditions and tapping system in the carbon budget of rubber plantations. |
format |
article |
topic_facet |
F62 - Physiologie végétale - Croissance et développement F61 - Physiologie végétale - Nutrition F01 - Culture des plantes P33 - Chimie et physique du sol Hevea brasiliensis racine croissance taux de croissance teneur en eau du sol précipitation variation saisonnière facteur climatique récolte latex http://aims.fao.org/aos/agrovoc/c_3589 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_16130 http://aims.fao.org/aos/agrovoc/c_7208 http://aims.fao.org/aos/agrovoc/c_6161 http://aims.fao.org/aos/agrovoc/c_24894 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_3500 http://aims.fao.org/aos/agrovoc/c_4214 http://aims.fao.org/aos/agrovoc/c_7701 |
author |
Chairungsee, Naruenat Gay, Frédéric Thaler, Philippe Kasemsap, Poonpipope Thanisawanyangkura, Sornprach Chantuma, Arak Jourdan, Christophe |
author_facet |
Chairungsee, Naruenat Gay, Frédéric Thaler, Philippe Kasemsap, Poonpipope Thanisawanyangkura, Sornprach Chantuma, Arak Jourdan, Christophe |
author_sort |
Chairungsee, Naruenat |
title |
Impact of tapping and soil water status on fine root dynamics in a rubber tree plantation in Thailand |
title_short |
Impact of tapping and soil water status on fine root dynamics in a rubber tree plantation in Thailand |
title_full |
Impact of tapping and soil water status on fine root dynamics in a rubber tree plantation in Thailand |
title_fullStr |
Impact of tapping and soil water status on fine root dynamics in a rubber tree plantation in Thailand |
title_full_unstemmed |
Impact of tapping and soil water status on fine root dynamics in a rubber tree plantation in Thailand |
title_sort |
impact of tapping and soil water status on fine root dynamics in a rubber tree plantation in thailand |
url |
http://agritrop.cirad.fr/572411/ http://agritrop.cirad.fr/572411/1/document_572411.pdf |
work_keys_str_mv |
AT chairungseenaruenat impactoftappingandsoilwaterstatusonfinerootdynamicsinarubbertreeplantationinthailand AT gayfrederic impactoftappingandsoilwaterstatusonfinerootdynamicsinarubbertreeplantationinthailand AT thalerphilippe impactoftappingandsoilwaterstatusonfinerootdynamicsinarubbertreeplantationinthailand AT kasemsappoonpipope impactoftappingandsoilwaterstatusonfinerootdynamicsinarubbertreeplantationinthailand AT thanisawanyangkurasornprach impactoftappingandsoilwaterstatusonfinerootdynamicsinarubbertreeplantationinthailand AT chantumaarak impactoftappingandsoilwaterstatusonfinerootdynamicsinarubbertreeplantationinthailand AT jourdanchristophe impactoftappingandsoilwaterstatusonfinerootdynamicsinarubbertreeplantationinthailand |
_version_ |
1792498593226031104 |