Effect of bark beetle (Ips typographus L.) attack on bark VOC emissions of Norway spruce (Picea abies Karst.) trees

Ghimire, Rajendra P.; Kivimäenpää, Minna; Blomqvist, Minna; Holopainen, Toini; Lyytikäinen‐Saarenmaa, Päivi; Holopainen, Jarmo K.

doi:10.1016/j.atmosenv.2015.11.049

Cited by 34 publications

(29 citation statements)

References 51 publications

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“…The observed growing season monthly mean monoterpene emission rates (1.6-2.4 ng m −2 s −1 ) were in the same range as previously reported lower stem bark monoterpene emission rates in non-stressed conditions from mature Norway spruce (Ghimire et al, 2016) and Scots pine trees (Rissanen et al, 2016), while also considerably higher emissions have been reported e.g., from Maritime pine stems (up to 99 ng m −2 s −1 ; Staudt et al, 2019). Upscaling to the stand level and assuming that all stems would be of an equal size, the average monoterpene emission rate from pine stems was 6.8 mg ha −1 h −1 .…”

Section: Discussionsupporting

confidence: 87%

Scots Pine Stems as Dynamic Sources of Monoterpene and Methanol Emissions

Vanhatalo

Aalto

Chan

et al. 2020

Front. For. Glob. Change

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The volatile organic compound (VOC) fluxes of living plant compartments other than foliage are poorly known. In this paper we describe for the first time the methanol and monoterpene fluxes from living Scots pine stems in situ, over 4 years at the SMEAR II station in southern Finland. The VOC fluxes from stems were measured online with an automated chamber measurement system. Both methanol and monoterpene emissions showed strong diurnal and seasonal cycles. Methanol emission rates were highest in midsummer , and coincided with the most intensive period of stem radial growth. Methanol emission rates correlated moderately with the xylem sap flow rate and foliage transpiration rate, which suggests that many simultaneous and overlapping processes are related to methanol transport and production in trees. Monoterpene emissions from stems were highest on the hottest summer days, but also substantial in winter during times when the temperature was above zero • C for several days. Overall, the emissions from stems constitute about 2% of the whole stand monoterpene emissions under normal, non-stressed conditions. This can be used in stand monoterpene emission models as the rough estimate of woody compartment contribution.

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Section: Discussionsupporting

confidence: 87%

Scots Pine Stems as Dynamic Sources of Monoterpene and Methanol Emissions

Vanhatalo

Aalto

Chan

et al. 2020

Front. For. Glob. Change

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“…Stem MT emission bursts through the bark may occasionally reach 50 ng m −2 s −1 in spring although they normally stay below 10 ng m −2 s −1 in P. sylvestris (Vanhatalo et al 2015). Ghimire et al (2016) reported bark MT emissions from intact P. abies to be 3 ng m −2 s −1 . When compared to average MT emissions from mature pine needles of 0.34 ng m −2 s −1 (Ruuskanen et al 2005), it can be concluded that bark emissions may Plant roots can be important sources of BVOC emissions in forest ecosystems, but their measurement and quantification are difficult as root systems cannot be separated from the soil microbial network of mycorrhizal fungi and other rhizosphere microbes that also emit BVOCs (Peñuelas et al 2014;Ditengou et al 2015).…”

Section: Chemical Diversity Of Bvocs and Their Production In Plantsmentioning

confidence: 99%

“…In forest stands, the canopy layer of living trees has a substantial volume and leaf area and it acts as the most important emission source for BVOCs (Zhou et al 2017), but can also act as a sink when atmospheric BVOCs such as MTs are taken up through stomata or when reaction products of rapidly reactive BVOCs such as SQTs are deposited on foliage (Zhou et al 2017). In addition to green foliage, wood, phloem and bark of trunk and branches of living trees act as important pools of stored BVOCs such as oleoresin MTs in conifer forests (Taipale et al 2011;Ghimire et al 2016). Furthermore, some plant species such as woody shrubs (Himanen et al 2010;Mofikoya et al 2018) growing in the understory can act as significant emission sources.…”

Section: Bvocs Of Rhizosphere Litter and Understorymentioning

confidence: 99%

Unravelling the functions of biogenic volatiles in boreal and temperate forest ecosystems

et al. 2019

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Living trees are the main source of biogenic volatile organic compounds (BVOCs) in forest ecosystems, but substantial emissions originate from leaf and wood litter, the rhizosphere and from microorganisms. This review focuses on temperate and boreal forest ecosystems and the roles of BVOCs in ecosystem function, from the leaf to the forest canopy and from the forest soil to the atmosphere level. Moreover, emphasis is given to the question of how BVOCs will help forests adapt to environmental stress, particularly biotic stress related to climate change. Trees use their vascular system and emissions of BVOCs in internal communication, but emitted BVOCs have extended the communication to tree population and whole community levels and beyond. Future forestry practices should consider the importance of BVOCs in attraction and repulsion of attacking bark beetles, but also take an advantage of herbivore-induced BVOCs to improve the efficiency of natural enemies of herbivores. BVOCs are extensively involved in ecosystem services provided by forests including the positive effects on human health. BVOCs have a key role in ozone formation but also in ozone quenching. Oxidation products form secondary organic aerosols that disperse sunlight deeper into the forest canopy, and affect cloud formation and ultimately the climate. We also discuss the technical side of reliable BVOC sampling of forest trees for future interdisciplinary studies that should bridge the gaps between the forest sciences, health sciences, chemical ecology, conservation biology, tree physiology and atmospheric science.

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“…However, to date only a few studies have focused on the interactive effects of elevated O 3 and warming on trees. These studies have addressed the responses of the photosynthetic rate (e.g., Hartikainen et al, 2012; Mäenpää et al, 2011; Riikonen et al, 2012), carbon allocation (Kasurinen et al, 2012), and production of biogenic volatile organic compounds (e.g., Ghimire et al, 2016; Hartikainen et al, 2009, 2012; Kivimäenpää et al, 2012) to factorial combinations of warming and elevated O 3 . To our knowledge, no studies have investigated the interactive effect of warming and O 3 exposure on the photosynthetic thermal acclimation capacity.…”

Section: Introductionmentioning

confidence: 99%

Reduced photosynthetic thermal acclimation capacity under elevated ozone in poplar (Populus tremula) saplings

Dai

Harmens

et al. 2021

Global Change Biology

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The sensitivity of photosynthesis to temperature has been identified as a key uncertainty for projecting the magnitude of the terrestrial carbon cycle response to future climate change. Although thermal acclimation of photosynthesis under rising temperature has been reported in many tree species, whether tropospheric ozone (O3) affects the acclimation capacity remains unknown. In this study, temperature responses of photosynthesis (light‐saturated rate of photosynthesis (Asat), maximum rates of RuBP carboxylation (Vcmax), and electron transport (Jmax) and dark respiration (Rdark) of Populus tremula exposed to ambient O3 (AO3, maximum of 30 ppb) or elevated O3 (EO3, maximum of 110 ppb) and ambient or elevated temperature (ambient +5°C) were investigated in solardomes. We found that the optimum temperature of Asat (ToptA) significantly increased in response to warming. However, the thermal acclimation capacity was reduced by O3 exposure, as indicated by decreased ToptA, and temperature optima of Vcmax (ToptV) and Jmax (ToptJ) under EO3. Changes in both stomatal conductance (gs) and photosynthetic capacity (Vcmax and Jmax) contributed to the shift of ToptA by warming and EO3. Neither Rdark measured at 25°C (Rdark25) nor the temperature response of Rdark was affected by warming, EO3, or their combination. The responses of Asat, Vcmax, and Jmax to warming and EO3 were closely correlated with changes in leaf nitrogen (N) content and N use efficiency. Overall, warming stimulated growth (leaf biomass and tree height), whereas EO3 reduced growth (leaf and woody biomass). The findings indicate that thermal acclimation of Asat may be overestimated if the impact of O3 pollution is not taken into account.

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Effect of bark beetle (Ips typographus L.) attack on bark VOC emissions of Norway spruce (Picea abies Karst.) trees

Cited by 34 publications

References 51 publications

Scots Pine Stems as Dynamic Sources of Monoterpene and Methanol Emissions

Scots Pine Stems as Dynamic Sources of Monoterpene and Methanol Emissions

Unravelling the functions of biogenic volatiles in boreal and temperate forest ecosystems

Reduced photosynthetic thermal acclimation capacity under elevated ozone in poplar (Populus tremula) saplings

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