Modelling ozone stomatal flux of wheat under mediterranean conditions

被引：37

作者：

Gonzalez-Fernandez, I. ^{[1
]}

Bermejo, V. ^{[1
]}

Elvira, S. ^{[1
]}

de la Torre, D. ^{[2
]}

Gonzalez, A. ^{[3
]}

Navarrete, L. ^{[3
]}

Sanz, J. ^{[1
]}

Calvete, H. ^{[1
]}

Garcia-Gomez, H. ^{[1
]}

Lopez, A. ^{[4
]}

Serra, J. ^{[5
]}

Lafarga, A. ^{[6
]}

Armesto, A. P. ^{[6
]}

Calvo, A. ^{[7
]}

Alonso, R. ^{[1
]}

机构：

[1] CIEMAT, E-28040 Madrid, Spain

[2] UPM, ETSI Agron, Dpto Biol Vegetal, Madrid 28040, Spain

[3] Comunidad Madrid, IMIDRA, Serv Invest Agr, Alcala De Henares 28800, Spain

[4] Ctr UdL, IRTA, Lleida 25198, Spain

[5] Estacio Expt Agr Mas Badia, IRTA, La Tallada Demporda 17134, Girona, Spain

[6] ITGA, Navarra 31610, Spain

[7] Comunidad Madrid, Area Agr, Madrid 28012, Spain

来源：

ATMOSPHERIC ENVIRONMENT | 2013年 / 67卷

关键词：

Triticum aestivum; Triticum durum; Phenology; Stomatal conductance; Ozone risk assessment; Phytotoxic ozone dose; CARBON-ISOTOPE DISCRIMINATION; GAS-EXCHANGE CHARACTERISTICS; TRITICUM-AESTIVUM L; INDUCED YIELD LOSS; WINTER-WHEAT; DURUM-WHEAT; RESPONSE RELATIONSHIPS; CLIMATE CONDITIONS; SPRING WHEAT; GRAIN-YIELD;

D O I：

10.1016/j.atmosenv.2012.10.043

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Correct estimation of leaf-level stomatal conductance (g(sto)) is central for current ozone (O-3) risk assessment of wheat yield loss based on the absorbed O-3 phytotoxic dose (POD). The g(sto) model parameterizations developed in Europe must be checked in the different climatic regions where they are going to be applied in order to reduce the uncertainties associated with the POD approach. This work proposes a new g(sto) model parameterization for estimating POD of Triticum aestivum and Triticum durum under Mediterranean conditions, based on phenological observations over 25 years and g(sto) field measurements during 5 growing seasons. Results show that POD in the Mediterranean area might be higher than previously estimated. However, caution must be paid when assessing the risk of yield loss for wheat in this area since field validation of O-3 impacts is still limited. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：149 / 160

页数：12

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