Simulating the effects of different potassium and water supply regimes on soil water content and water table depth over a rotation of a tropical Eucalyptus grandis plantation
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.foreco.2017.12.048 http://hdl.handle.net/11449/164216 |
Resumo: | Although large amounts of potassium (K) are applied in tropical crops and planted forests, little is known about the interaction between K nutrition and water supply regimes on water resources in tropical regions. This interaction is a major issue because climate change is expected to increase the length of drought periods in many tropical regions and soil water availability in deep soil layers is likely to have a major influence on tree growth during dry periods in tropical planted forests. A process-based model (MAESPA) was parameterized in a throughfall exclusion experiment in Brazil to gain insight into the combined effects of K deficiency and rainfall reduction (37% throughfall exclusion) on the water used by the trees, soil water storage and water table fluctuations over the first 4.5 years after planting Eucalyptus grandis trees. A comparison of canopy transpiration in each plot with the values predicted for the same soil with the water content maintained at field capacity, made it possible to calculate a soil-driven tree water stress index for each treatment. Compared to K-fertilized trees with undisturbed rainfall (+K+W), canopy transpiration was 40% lower for K deficiency (-K+W), 20% lower for W deficit (+K - W) and 36% lower for combined K deficiency and W deficit (- K - W) on average. Water was withdrawn in deeper soil layers for -W than for + W, particularly over dry seasons. Under contrasted K availability, water withdrawal was more superficial for -K than for +K. Mean soil water content down to 18 m below surface (mbs) was 24% higher for - K+ W than for +K+W from 2 years after planting (after canopy closure), while it was 24% lower for +K-W and 12% lower for -K W than for +K+W. The soil-driven tree water stress index was 166% higher over the first 4.5 years after planting for - W than for +W, 76% lower for -K than for +K, and 14% lower for -K -W than for +K+W. Over the study period, deep seepage was higher by 371 mm yr(-1) (+122%) for -K than for +K and lower by 200 mm yr(-1) (- 66%) for -W than for +W. Deep seepage was lower by 44% for -K- W than for +K+ W. At the end of the study period, the model predicted a higher water table for -K (10 mbs for -K+W and 16 mbs for -K-W) than for +K (16 mbs for +K+W and 18 mbs for +K-W). Our study suggests that flexible fertilization regimes could contribute to adjusting the local trade-off between wood production and demand for soil water resources in planted forests. |
id |
UNSP_2ef51b210c4e261f3640f9f2e2f2b6f3 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/164216 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Simulating the effects of different potassium and water supply regimes on soil water content and water table depth over a rotation of a tropical Eucalyptus grandis plantationWater resourcesGroundwaterBrazilEucalyptusDeep rootsNutrientsAlthough large amounts of potassium (K) are applied in tropical crops and planted forests, little is known about the interaction between K nutrition and water supply regimes on water resources in tropical regions. This interaction is a major issue because climate change is expected to increase the length of drought periods in many tropical regions and soil water availability in deep soil layers is likely to have a major influence on tree growth during dry periods in tropical planted forests. A process-based model (MAESPA) was parameterized in a throughfall exclusion experiment in Brazil to gain insight into the combined effects of K deficiency and rainfall reduction (37% throughfall exclusion) on the water used by the trees, soil water storage and water table fluctuations over the first 4.5 years after planting Eucalyptus grandis trees. A comparison of canopy transpiration in each plot with the values predicted for the same soil with the water content maintained at field capacity, made it possible to calculate a soil-driven tree water stress index for each treatment. Compared to K-fertilized trees with undisturbed rainfall (+K+W), canopy transpiration was 40% lower for K deficiency (-K+W), 20% lower for W deficit (+K - W) and 36% lower for combined K deficiency and W deficit (- K - W) on average. Water was withdrawn in deeper soil layers for -W than for + W, particularly over dry seasons. Under contrasted K availability, water withdrawal was more superficial for -K than for +K. Mean soil water content down to 18 m below surface (mbs) was 24% higher for - K+ W than for +K+W from 2 years after planting (after canopy closure), while it was 24% lower for +K-W and 12% lower for -K W than for +K+W. The soil-driven tree water stress index was 166% higher over the first 4.5 years after planting for - W than for +W, 76% lower for -K than for +K, and 14% lower for -K -W than for +K+W. Over the study period, deep seepage was higher by 371 mm yr(-1) (+122%) for -K than for +K and lower by 200 mm yr(-1) (- 66%) for -W than for +W. Deep seepage was lower by 44% for -K- W than for +K+ W. At the end of the study period, the model predicted a higher water table for -K (10 mbs for -K+W and 16 mbs for -K-W) than for +K (16 mbs for +K+W and 18 mbs for +K-W). Our study suggests that flexible fertilization regimes could contribute to adjusting the local trade-off between wood production and demand for soil water resources in planted forests.Universidade de Sao PauloCentre de cooperation Internationale en Recherche Agronomique pour le Developpement (CIRAD)Agence Nationale de la Recherche (MACACC)Agropolis FoundationCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)CIRAD, UMR Eco&Sols, F-34398 Montpellier, FranceUniv Montpellier, Eco&Sols, CIRAD, INRA,IRD,Montpellier SupAgro, Montpellier, FranceCIRAD, UR AIDA 115, F-34398 Montpellier, FranceUniv Estadual Campinas, NIPE, BR-13083970 Campinas, SP, BrazilUniv Sao Paulo, Dept Ciencias Atmosfer, BR-05508900 Sao Paulo, SP, BrazilINRA, UMR 1391, ISPA, F-33140 Villenave Dornon, FranceUniv Sao Paulo, ESALQ, BR-13418900 Piracicaba, SP, BrazilUniv Sao Paulo, CENA, BR-13400970 Piracicaba, SP, BrazilUniv Estadual Paulista, Dept Solos & Recursos Ambientais, BR-18610300 Botucatu, SP, BrazilUniv Estadual Paulista, Dept Solos & Recursos Ambientais, BR-18610300 Botucatu, SP, BrazilAgence Nationale de la Recherche (MACACC): ANR-13-AGRO-0005Agropolis Foundation: ANR-10-LabX-0001-01CAPES: 017/2013Elsevier B.V.CIRADUniv MontpellierUniversidade Estadual de Campinas (UNICAMP)Universidade de São Paulo (USP)INRAUniversidade Estadual Paulista (Unesp)Christina, M.le Maire, G.Nouvellon, Y.Vezy, R.Bordon, B.Battie-Laclau, P.Goncalves, J. L. M.Delgado-Rojas, J. S.Bouillet, J. -P.Laclau, J. -P.2018-11-26T17:51:43Z2018-11-26T17:51:43Z2018-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article4-14application/pdfhttp://dx.doi.org/10.1016/j.foreco.2017.12.048Forest Ecology And Management. Amsterdam: Elsevier Science Bv, v. 418, p. 4-14, 2018.0378-1127http://hdl.handle.net/11449/16421610.1016/j.foreco.2017.12.048WOS:000432498500002WOS000432498500002.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengForest Ecology And Management1,625info:eu-repo/semantics/openAccess2024-04-30T19:28:09Zoai:repositorio.unesp.br:11449/164216Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:42:29.282544Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Simulating the effects of different potassium and water supply regimes on soil water content and water table depth over a rotation of a tropical Eucalyptus grandis plantation |
title |
Simulating the effects of different potassium and water supply regimes on soil water content and water table depth over a rotation of a tropical Eucalyptus grandis plantation |
spellingShingle |
Simulating the effects of different potassium and water supply regimes on soil water content and water table depth over a rotation of a tropical Eucalyptus grandis plantation Christina, M. Water resources Groundwater Brazil Eucalyptus Deep roots Nutrients |
title_short |
Simulating the effects of different potassium and water supply regimes on soil water content and water table depth over a rotation of a tropical Eucalyptus grandis plantation |
title_full |
Simulating the effects of different potassium and water supply regimes on soil water content and water table depth over a rotation of a tropical Eucalyptus grandis plantation |
title_fullStr |
Simulating the effects of different potassium and water supply regimes on soil water content and water table depth over a rotation of a tropical Eucalyptus grandis plantation |
title_full_unstemmed |
Simulating the effects of different potassium and water supply regimes on soil water content and water table depth over a rotation of a tropical Eucalyptus grandis plantation |
title_sort |
Simulating the effects of different potassium and water supply regimes on soil water content and water table depth over a rotation of a tropical Eucalyptus grandis plantation |
author |
Christina, M. |
author_facet |
Christina, M. le Maire, G. Nouvellon, Y. Vezy, R. Bordon, B. Battie-Laclau, P. Goncalves, J. L. M. Delgado-Rojas, J. S. Bouillet, J. -P. Laclau, J. -P. |
author_role |
author |
author2 |
le Maire, G. Nouvellon, Y. Vezy, R. Bordon, B. Battie-Laclau, P. Goncalves, J. L. M. Delgado-Rojas, J. S. Bouillet, J. -P. Laclau, J. -P. |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
CIRAD Univ Montpellier Universidade Estadual de Campinas (UNICAMP) Universidade de São Paulo (USP) INRA Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Christina, M. le Maire, G. Nouvellon, Y. Vezy, R. Bordon, B. Battie-Laclau, P. Goncalves, J. L. M. Delgado-Rojas, J. S. Bouillet, J. -P. Laclau, J. -P. |
dc.subject.por.fl_str_mv |
Water resources Groundwater Brazil Eucalyptus Deep roots Nutrients |
topic |
Water resources Groundwater Brazil Eucalyptus Deep roots Nutrients |
description |
Although large amounts of potassium (K) are applied in tropical crops and planted forests, little is known about the interaction between K nutrition and water supply regimes on water resources in tropical regions. This interaction is a major issue because climate change is expected to increase the length of drought periods in many tropical regions and soil water availability in deep soil layers is likely to have a major influence on tree growth during dry periods in tropical planted forests. A process-based model (MAESPA) was parameterized in a throughfall exclusion experiment in Brazil to gain insight into the combined effects of K deficiency and rainfall reduction (37% throughfall exclusion) on the water used by the trees, soil water storage and water table fluctuations over the first 4.5 years after planting Eucalyptus grandis trees. A comparison of canopy transpiration in each plot with the values predicted for the same soil with the water content maintained at field capacity, made it possible to calculate a soil-driven tree water stress index for each treatment. Compared to K-fertilized trees with undisturbed rainfall (+K+W), canopy transpiration was 40% lower for K deficiency (-K+W), 20% lower for W deficit (+K - W) and 36% lower for combined K deficiency and W deficit (- K - W) on average. Water was withdrawn in deeper soil layers for -W than for + W, particularly over dry seasons. Under contrasted K availability, water withdrawal was more superficial for -K than for +K. Mean soil water content down to 18 m below surface (mbs) was 24% higher for - K+ W than for +K+W from 2 years after planting (after canopy closure), while it was 24% lower for +K-W and 12% lower for -K W than for +K+W. The soil-driven tree water stress index was 166% higher over the first 4.5 years after planting for - W than for +W, 76% lower for -K than for +K, and 14% lower for -K -W than for +K+W. Over the study period, deep seepage was higher by 371 mm yr(-1) (+122%) for -K than for +K and lower by 200 mm yr(-1) (- 66%) for -W than for +W. Deep seepage was lower by 44% for -K- W than for +K+ W. At the end of the study period, the model predicted a higher water table for -K (10 mbs for -K+W and 16 mbs for -K-W) than for +K (16 mbs for +K+W and 18 mbs for +K-W). Our study suggests that flexible fertilization regimes could contribute to adjusting the local trade-off between wood production and demand for soil water resources in planted forests. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-26T17:51:43Z 2018-11-26T17:51:43Z 2018-06-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.foreco.2017.12.048 Forest Ecology And Management. Amsterdam: Elsevier Science Bv, v. 418, p. 4-14, 2018. 0378-1127 http://hdl.handle.net/11449/164216 10.1016/j.foreco.2017.12.048 WOS:000432498500002 WOS000432498500002.pdf |
url |
http://dx.doi.org/10.1016/j.foreco.2017.12.048 http://hdl.handle.net/11449/164216 |
identifier_str_mv |
Forest Ecology And Management. Amsterdam: Elsevier Science Bv, v. 418, p. 4-14, 2018. 0378-1127 10.1016/j.foreco.2017.12.048 WOS:000432498500002 WOS000432498500002.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Forest Ecology And Management 1,625 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
4-14 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128268803506176 |