Responses of leaf structure and photosynthetic properties to intra-canopy light gradients: a common garden test with four broadleaf deciduous angiosperm and seven evergreen conifer tree species

Smoke from forest fires can persist in the environment for weeks and while there is a substantial amount of literature examining the effects of smoke exposure on seed germination, the effects of smoke on leaf function are nearly uninvestigated. The objective of this study was to compare growth and primary and secondary metabolic responses of deciduous angiosperm and evergreen conifer tree species to short smoke exposure. Twenty minutes of smoke exposure resulted in a greater than 50% reduction in photosynthetic capacity in five of the six species we examined. Impairment of photosynthesis in response to smoke was a function of reductions in stomatal conductance and biochemical limitations. In general, deciduous angiosperm species showed a greater sensitivity than evergreen conifers. While there were significant decreases in photosynthesis and stomatal conductance, smoke had no significant effect on growth or secondary defense compound production in any of the tree species examined.

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Light and propagule pressure affect invasion intensity of Prunus serotina in a 14-tree species forest common garden experiment

NeoBiota ◽

10.3897/neobiota.46.30413 ◽

2019 ◽

Vol 46 ◽

pp. 1-21 ◽

Cited By ~ 6

Author(s):

Andrzej M. Jagodziński ◽

Marcin K. Dyderski ◽

Paweł Horodecki ◽

Kathleen S. Knight ◽

Katarzyna Rawlik ◽

...

Keyword(s):

Aboveground Biomass ◽

Tree Species ◽

Propagule Pressure ◽

Light Availability ◽

Common Garden ◽

Additive Models ◽

Common Garden Experiment ◽

Tree Stand ◽

Biomass Increment ◽

The Impact

Experiments testing multiple factors that affect the rate of invasions in forests are scarce. We aimed to assess how the biomass of invasive Prunusserotina changed over eight years and how this change was affected by light availability, tree stand growth, and propagule pressure. The study was conducted in Siemianice Experimental Forest (W Poland), a common garden forest experiment with 14 tree species. We investigated aboveground biomass and density of P.serotina within 53 experimental plots with initial measurements in 2005 and repeated in 2013. We also measured light availability and distance from seed sources. We used generalized additive models to assess the impact of particular predictors on P.serotina biomass in 2013 and its relative change over eight years. The relative biomass increments of P.serotina ranged from 0 to 22,000-fold. The success of P.serotina, expressed as aboveground biomass and biomass increment, varied among different tree species stands, but was greater under conifers. Total biomass of P.serotina depended on light and propagule availability while biomass increment depended on the change in tree stand biomass, a metric corresponding to tree stand maturation. Our study quantified the range of invasion intensity, expressed as biomass increment, in a forest common garden experiment with 14 tree species. Canopy cover was the most important variable to reduce susceptibility to invasion by P.serotina. Even a modest decrease of overstory biomass, e.g. caused by dieback of coniferous species, may be risky in areas with high propagule pressure from invasive tree species. Thus, P.serotina control may include maintaining high canopy closure and supporting natural regeneration of tree species with high leaf area index, which shade the understory.

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SEEDLING LEAF STRUCTURE OF TREE SPECIES IN RELATION TO THEIR SUCCESSIONAL STATUS AND CANOPY POSITION IN A SRI LANKAN RAIN FOREST

10.31357/fapsmph.2007.00597 ◽

2007 ◽

Author(s):

S. BANDUMALA

Keyword(s):

Tree Species ◽

Rain Forest ◽

Leaf Structure ◽

Sri Lankan ◽

Successional Status ◽

Canopy Position ◽

Seedling Leaf

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Effects of litter traits, soil biota, and soil chemistry on soil carbon stocks at a common garden with 14 tree species

Biogeochemistry ◽

10.1007/s10533-015-0083-6 ◽

2015 ◽

Vol 123 (3) ◽

pp. 313-327 ◽

Cited By ~ 49

Author(s):

Kevin E. Mueller ◽

Sarah E. Hobbie ◽

Jon Chorover ◽

Peter B. Reich ◽

Nico Eisenhauer ◽

...

Keyword(s):

Soil Carbon ◽

Tree Species ◽

Soil Chemistry ◽

Common Garden ◽

Carbon Stocks ◽

Soil Biota ◽

Litter Traits ◽

Soil Carbon Stocks

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A test of the hydraulic vulnerability segmentation hypothesis in angiosperm and conifer tree species

Tree Physiology ◽

10.1093/treephys/tpw031 ◽

2016 ◽

Vol 36 (8) ◽

pp. 983-993 ◽

Cited By ~ 70

Author(s):

Daniel M. Johnson ◽

Remi Wortemann ◽

Katherine A. McCulloh ◽

Lionel Jordan-Meille ◽

Eric Ward ◽

...

Keyword(s):

Tree Species ◽

Hydraulic Vulnerability ◽

Conifer Tree

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Selection of tree species for forests under climate change: is PSI functioning a better predictor for net photosynthesis and growth than PSII?

Tree Physiology ◽

10.1093/treephys/tpaa084 ◽

2020 ◽

Vol 40 (11) ◽

pp. 1561-1571 ◽

Cited By ~ 1

Author(s):

Martina Pollastrini ◽

Elisabetta Salvatori ◽

Lina Fusaro ◽

Fausto Manes ◽

Riccardo Marzuoli ◽

...

Keyword(s):

Climate Change ◽

Chlorophyll Fluorescence ◽

Tree Species ◽

Leaf Gas Exchange ◽

Central Italy ◽

Common Garden ◽

Net Photosynthesis ◽

Photosynthetic Performance ◽

Seasonal Temperature

Abstract A chlorophyll fluorescence (ChlF) assessment was carried out on oak seedlings (Quercus ilex L., Quercus pubescens Willd., Quercus frainetto Ten.) of Italian and Greek provenance, during the years 2017 and 2018, in a common garden in central Italy planted in 2017. This trial aimed to test the relative performances of the oak species in the perspective of assisted migration as part of the actions for the adaptation of forests to climate change. The assessment of the photosynthetic performance of the tree species included the analysis of the prompt chlorophyll fluorescence (PF) transient and the modulated reflection (MR) at 820 nm, leaf chlorophyll content, leaf gas exchange (net photosynthesis, stomatal conductance), plant growth (i.e., height) and mortality rate after 2 years from the beginning of the experiment. The assessment of the performance of the three oak species was carried out ‘in vivo’. Plants were generated from seeds and exposed to several environmental factors, including changing seasonal temperature, water availability, and soil biological and physical functionality. The results of PF indicate a stable functionality of the photosynthetic system PSII (expressed as FV/FM) across species and provenances and a decline in photochemistry functionality at the I–P phase (ΔVIP) in Q. frainetto, thus indicating a decline of the content of PSI in this species. This result was confirmed by the findings of MR analysis, with the speed of reduction and subsequent oxidation of PSI (VRED and VOX) strongly correlated to the amplitude of ΔVIP. The photosynthetic rates (net photosynthesis, PN) and growth were correlated with the parameters associated with PSI content and function, rather than those related to PSII. The low performance of Q. frainetto in the common garden seems to be related to early foliar senescence with the depletion of nitrogen, due to suboptimal climatic and edaphic conditions. Chlorophyll fluorescence allowed discrimination of populations of oak species and individuation of the less (or/and best) suitable species for future forest ecology and management purposes.

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