A potential nutritional modifier for predicting primary productivity of Pinus radiata in New Zealand using a simplified radiation-use efficiency model

H.E. Bown, E.G. Mason, M.S. Watt, and P.W. Clinton. 2013. A potential nutritional modifier for predicting primary productivity of Pinus radiata in New Zealand using a simplified radiation-use efficiency model. Cien. Inv. Agr. 40(2): 361-374. The 3-PG (Physiological Principles in Predicting Growth) r...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Bown,Horacio E, Mason,Euan G, Watt,Michael S, Clinton,Peter W
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2013
Materias:	Nutritional modifier Pinus radiata primary productivity radiation-use efficiency soil C/N soil N
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000200011
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-16202013000200011
record_format	dspace
spelling	oai:scielo:S0718-162020130002000112013-10-23A potential nutritional modifier for predicting primary productivity of Pinus radiata in New Zealand using a simplified radiation-use efficiency modelBown,Horacio EMason,Euan GWatt,Michael SClinton,Peter W Nutritional modifier Pinus radiata primary productivity radiation-use efficiency soil C/N soil N H.E. Bown, E.G. Mason, M.S. Watt, and P.W. Clinton. 2013. A potential nutritional modifier for predicting primary productivity of Pinus radiata in New Zealand using a simplified radiation-use efficiency model. Cien. Inv. Agr. 40(2): 361-374. The 3-PG (Physiological Principles in Predicting Growth) radiation-use efficiency model has been widely used and tested for predicting the primary productivity of forests all over the world. This radiation-use efficiency model accounts for plant nutrition through a user-defined dimensionless fertility parameter (fN) that determines the effects a unit of radiation. Currently, this fertility parameter has to be entered by the user based on intuition or experience. The goal of this study was to propose a fertility modifier fN) for the radiation-use efficiency family of models based on soil chemical and physical variables. We determined gross- and net-primary productivity for a set of 10 intensively measured mini-plots of Pinus radiata D. Don on the South Island of New Zealand and then fitted a fertility modifier, fN, to the set of plots using a simplified radiation-use efficiency model. Fitted fN values were correlated to soil physical and chemical variables. The nutritional modifier, fN, significantly increased with the soil N (%) and decreased with the soil C:N ratio, and both, soil N and the C:N ratio, were measured in the upper 10 cm of soil fN = 1.32 - 0.04 C:N + 0.99 N, r² = 0.73, P = 0.009). If confirmed, this relationship may prove useful to estimate the fertility modifier of radiation-use efficiency models (e.g., 3-PG) for Pinus radiata plantations in New Zealand. However, caution should be exercised for sites where mineral nutrients other than nitrogen limit productivity.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.40 n.2 20132013-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000200011en10.4067/S0718-16202013000200011
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Nutritional modifier Pinus radiata primary productivity radiation-use efficiency soil C/N soil N
spellingShingle	Nutritional modifier Pinus radiata primary productivity radiation-use efficiency soil C/N soil N Bown,Horacio E Mason,Euan G Watt,Michael S Clinton,Peter W A potential nutritional modifier for predicting primary productivity of Pinus radiata in New Zealand using a simplified radiation-use efficiency model
description	H.E. Bown, E.G. Mason, M.S. Watt, and P.W. Clinton. 2013. A potential nutritional modifier for predicting primary productivity of Pinus radiata in New Zealand using a simplified radiation-use efficiency model. Cien. Inv. Agr. 40(2): 361-374. The 3-PG (Physiological Principles in Predicting Growth) radiation-use efficiency model has been widely used and tested for predicting the primary productivity of forests all over the world. This radiation-use efficiency model accounts for plant nutrition through a user-defined dimensionless fertility parameter (fN) that determines the effects a unit of radiation. Currently, this fertility parameter has to be entered by the user based on intuition or experience. The goal of this study was to propose a fertility modifier fN) for the radiation-use efficiency family of models based on soil chemical and physical variables. We determined gross- and net-primary productivity for a set of 10 intensively measured mini-plots of Pinus radiata D. Don on the South Island of New Zealand and then fitted a fertility modifier, fN, to the set of plots using a simplified radiation-use efficiency model. Fitted fN values were correlated to soil physical and chemical variables. The nutritional modifier, fN, significantly increased with the soil N (%) and decreased with the soil C:N ratio, and both, soil N and the C:N ratio, were measured in the upper 10 cm of soil fN = 1.32 - 0.04 C:N + 0.99 N, r² = 0.73, P = 0.009). If confirmed, this relationship may prove useful to estimate the fertility modifier of radiation-use efficiency models (e.g., 3-PG) for Pinus radiata plantations in New Zealand. However, caution should be exercised for sites where mineral nutrients other than nitrogen limit productivity.
author	Bown,Horacio E Mason,Euan G Watt,Michael S Clinton,Peter W
author_facet	Bown,Horacio E Mason,Euan G Watt,Michael S Clinton,Peter W
author_sort	Bown,Horacio E
title	A potential nutritional modifier for predicting primary productivity of Pinus radiata in New Zealand using a simplified radiation-use efficiency model
title_short	A potential nutritional modifier for predicting primary productivity of Pinus radiata in New Zealand using a simplified radiation-use efficiency model
title_full	A potential nutritional modifier for predicting primary productivity of Pinus radiata in New Zealand using a simplified radiation-use efficiency model
title_fullStr	A potential nutritional modifier for predicting primary productivity of Pinus radiata in New Zealand using a simplified radiation-use efficiency model
title_full_unstemmed	A potential nutritional modifier for predicting primary productivity of Pinus radiata in New Zealand using a simplified radiation-use efficiency model
title_sort	potential nutritional modifier for predicting primary productivity of pinus radiata in new zealand using a simplified radiation-use efficiency model
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000200011
work_keys_str_mv	AT bownhoracioe apotentialnutritionalmodifierforpredictingprimaryproductivityofpinusradiatainnewzealandusingasimplifiedradiationuseefficiencymodel AT masoneuang apotentialnutritionalmodifierforpredictingprimaryproductivityofpinusradiatainnewzealandusingasimplifiedradiationuseefficiencymodel AT wattmichaels apotentialnutritionalmodifierforpredictingprimaryproductivityofpinusradiatainnewzealandusingasimplifiedradiationuseefficiencymodel AT clintonpeterw apotentialnutritionalmodifierforpredictingprimaryproductivityofpinusradiatainnewzealandusingasimplifiedradiationuseefficiencymodel AT bownhoracioe potentialnutritionalmodifierforpredictingprimaryproductivityofpinusradiatainnewzealandusingasimplifiedradiationuseefficiencymodel AT masoneuang potentialnutritionalmodifierforpredictingprimaryproductivityofpinusradiatainnewzealandusingasimplifiedradiationuseefficiencymodel AT wattmichaels potentialnutritionalmodifierforpredictingprimaryproductivityofpinusradiatainnewzealandusingasimplifiedradiationuseefficiencymodel AT clintonpeterw potentialnutritionalmodifierforpredictingprimaryproductivityofpinusradiatainnewzealandusingasimplifiedradiationuseefficiencymodel
_version_	1714202149895798784

A potential nutritional modifier for predicting primary productivity of Pinus radiata in New Zealand using a simplified radiation-use efficiency model

Ejemplares similares