Limits...
Responses of beech and spruce foliage to elevated carbon dioxide, increased nitrogen deposition and soil type.

Günthardt-Goerg MS, Vollenweider P - AoB Plants (2015)

Bottom Line: The magnitude of the effects varied among the tree origins in both species.Although the species elemental concentrations differed in their response to CO2 fertilization, the +CO2 treatment effect was weakened by an acceleration of cell senescence in both species, as shown by a decrease in photosynthetic pigment and nitrogen concentration, discolouration and stress symptoms at the cell level; the latter were stronger in beech than spruce.The soil type and its nutrient supply largely determined the fertilization gain, especially in the case of beech trees with a narrow ecological amplitude.

View Article: PubMed Central - PubMed

Affiliation: Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland madeleine.goerg@wsl.ch.

No MeSH data available.


Related in: MedlinePlus

The change in the dry mass of single needles (A and B) and total crown foliage (C and D) in European spruce from eight origins growing together on either acidic or calcareous forest soil in response to +CO2, +ND and +CO2 + ND versus control (mean values + SE, N = 4, September harvest). Origins: 1 Harzvorland (red column), 2 Hochsauerland (green column), 3 Frankenwald (yellow), 4 Carpathia (cyan), 5 Kerns (blue), 6 Neuwilen (dark green), 7 Bremgarten (orange), 8 Maschwanden (magenta).
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4522038&req=5

PLV067F5: The change in the dry mass of single needles (A and B) and total crown foliage (C and D) in European spruce from eight origins growing together on either acidic or calcareous forest soil in response to +CO2, +ND and +CO2 + ND versus control (mean values + SE, N = 4, September harvest). Origins: 1 Harzvorland (red column), 2 Hochsauerland (green column), 3 Frankenwald (yellow), 4 Carpathia (cyan), 5 Kerns (blue), 6 Neuwilen (dark green), 7 Bremgarten (orange), 8 Maschwanden (magenta).

Mentions: The +CO2 treatment strongly modified the morphology of spruce needles, whereas modifications by +ND and soil type were small and mostly not significant. In response to the +CO2 versus control treatment, the dry mass of current- and previous-year needles was increased by 25 and 23 % on average, respectively, and the needle area, thickness and LMA were increased by 14 % each (Fig. 5A and B, Table 2). The +CO2 treatment also lowered the water content of current-year needles, especially on the acidic soil (−5 %), whereas previous-year needles, water content of which was 7 % lower than in current foliage, showed no change. By the end of the experiment, the +CO2 treatment increased the total foliage biomass at tree level on average by +24 %, whatever the needle age (Fig. 5C and D, Table 2), varying for individual tree origins from 9 to 44 % without an apparent role of the plant material ontology or age.Table 2.


Responses of beech and spruce foliage to elevated carbon dioxide, increased nitrogen deposition and soil type.

Günthardt-Goerg MS, Vollenweider P - AoB Plants (2015)

The change in the dry mass of single needles (A and B) and total crown foliage (C and D) in European spruce from eight origins growing together on either acidic or calcareous forest soil in response to +CO2, +ND and +CO2 + ND versus control (mean values + SE, N = 4, September harvest). Origins: 1 Harzvorland (red column), 2 Hochsauerland (green column), 3 Frankenwald (yellow), 4 Carpathia (cyan), 5 Kerns (blue), 6 Neuwilen (dark green), 7 Bremgarten (orange), 8 Maschwanden (magenta).
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4522038&req=5

PLV067F5: The change in the dry mass of single needles (A and B) and total crown foliage (C and D) in European spruce from eight origins growing together on either acidic or calcareous forest soil in response to +CO2, +ND and +CO2 + ND versus control (mean values + SE, N = 4, September harvest). Origins: 1 Harzvorland (red column), 2 Hochsauerland (green column), 3 Frankenwald (yellow), 4 Carpathia (cyan), 5 Kerns (blue), 6 Neuwilen (dark green), 7 Bremgarten (orange), 8 Maschwanden (magenta).
Mentions: The +CO2 treatment strongly modified the morphology of spruce needles, whereas modifications by +ND and soil type were small and mostly not significant. In response to the +CO2 versus control treatment, the dry mass of current- and previous-year needles was increased by 25 and 23 % on average, respectively, and the needle area, thickness and LMA were increased by 14 % each (Fig. 5A and B, Table 2). The +CO2 treatment also lowered the water content of current-year needles, especially on the acidic soil (−5 %), whereas previous-year needles, water content of which was 7 % lower than in current foliage, showed no change. By the end of the experiment, the +CO2 treatment increased the total foliage biomass at tree level on average by +24 %, whatever the needle age (Fig. 5C and D, Table 2), varying for individual tree origins from 9 to 44 % without an apparent role of the plant material ontology or age.Table 2.

Bottom Line: The magnitude of the effects varied among the tree origins in both species.Although the species elemental concentrations differed in their response to CO2 fertilization, the +CO2 treatment effect was weakened by an acceleration of cell senescence in both species, as shown by a decrease in photosynthetic pigment and nitrogen concentration, discolouration and stress symptoms at the cell level; the latter were stronger in beech than spruce.The soil type and its nutrient supply largely determined the fertilization gain, especially in the case of beech trees with a narrow ecological amplitude.

View Article: PubMed Central - PubMed

Affiliation: Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland madeleine.goerg@wsl.ch.

No MeSH data available.


Related in: MedlinePlus