Evaluation of simulated ozone effects in forest ecosystems againstbiomass damage estimates from fumigation experiments

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	Evaluation of simulated ozone effects in forest ecosystems againstbiomass damage estimates from fumigation experiments
	Franz, Martina; Alonso, Rocio; Arneth, Almut; Bueker, Patrick; Elvira, Susana; Gerosa, Giacomo; Emberson, Lisa; Feng, Zhaozhong; Le Thiec, Didier; Marzuoli, Riccardo
刊名	BIOGEOSCIENCES
	2018-11-21
卷号	15 期号:22 页码:6941-6957
ISSN号	1726-4170
文献子类	Article
英文摘要	Regional estimates of the effects of ozone pollution on forest growth depend on the availability of reliable injury functions that estimate a representative ecosystem response to ozone exposure. A number of such injury functions for forest tree species and forest functional types have recently been published and subsequently applied in terrestrial biosphere models to estimate regional or global effects of ozone on forest tree productivity and carbon storage in the living plant biomass. The resulting impacts estimated by these biosphere models show large uncertainty in the magnitude of ozone effects predicted. To understand the role that these injury functions play in determining the variability in estimated ozone impacts, we use the O-CN biosphere model to provide a standardised modelling framework. We test four published injury functions describing the leaf-level, photosynthetic response to ozone exposure (targeting the maximum carboxylation capacity of Rubisco (V-cmax) or net pho-tosynthesis) in terms of their simulated whole-tree biomass responses against data from 23 ozone filtration/fumigation experiments conducted with young trees from European tree species at sites across Europe with a range of climatic conditions. Our results show that none of these previously published injury functions lead to simulated whole-tree biomass reductions in agreement with the observed dose-response relationships derived from these field experiments and instead lead to significant over-or underestimations of the ozone effect. By re-parameterising these photosynthetically based injury functions, we develop linear, plant-functional-typespecific dose-response relationships, which provide accurate simulations of the observed whole-tree biomass response across these 23 experiments.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40739]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Franz, Martina,Alonso, Rocio,Arneth, Almut,et al. Evaluation of simulated ozone effects in forest ecosystems againstbiomass damage estimates from fumigation experiments[J]. BIOGEOSCIENCES,2018,15(22):6941-6957.
APA	Franz, Martina.,Alonso, Rocio.,Arneth, Almut.,Bueker, Patrick.,Elvira, Susana.,...&Zaehle, Soenke.(2018).Evaluation of simulated ozone effects in forest ecosystems againstbiomass damage estimates from fumigation experiments.BIOGEOSCIENCES,15(22),6941-6957.
MLA	Franz, Martina,et al."Evaluation of simulated ozone effects in forest ecosystems againstbiomass damage estimates from fumigation experiments".BIOGEOSCIENCES 15.22(2018):6941-6957.