Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Sites of naturally elevated carbon dioxide
- Migration in the ground of CO2 and other volatile contaminants. Theory and survey
- Levels of CO2 leakage in relation to geology
- CO2 emission in volcanic areas: case histories and hazards
- Controlled degassing of lakes with high CO2 content in Cameroon: an opportunity for ecosystem CO2-enrichment experiments
- Burning coal seams in southern Utah: a natural system for studies of plant responses to elevated CO2
- Long-term effects of enhanced CO2 concentrations on leaf gas exchange: research opportunities using CO2 springs
- Using Icelandic CO2 springs to understand the long-term effects of elevated atmospheric CO2
- Plant CO2 responses in the long term: plants from CO2 springs in Florida and tombs in Egypt
- Acidophilic grass communities of CO2 springs in central Italy: composition, structure and ecology
- Studying morpho-physiological responses of Scirpus lacustris from naturally CO2-enriched environments
- Carbon physiology of Quercus pubescens Wild, growing at the Bossoleto CO2 spring in central Italy
- Preliminary results on dissolved inorganic 13C and 14C content of a CO2-rich mineral spring of Catalonia (NE Spain) and of plants growing in its surroundings
- The impact of elevated CO2 on the growth of Agrostis canina and Plantago major adapted to contrasting CO2 concentrations
- Stomatal numbers in holm oak (Quercus ilex L.) leaves grown in naturally and artificially CO2-enriched environments
- Effects of CO2 on NH4+ assimilation by Cyanidium caldarium, an acidophilic hot springs and hot soils unicellular alga
- Can rising CO2 alleviate oxidative risk for the plant cell? Testing the hypothesis under natural CO2 enrichment
- Increasing concentrations of atmospheric CO2 and decomposition processes in forest ecosystems
- Index
The impact of elevated CO2 on the growth of Agrostis canina and Plantago major adapted to contrasting CO2 concentrations
Published online by Cambridge University Press: 10 February 2010
- Frontmatter
- Contents
- List of contributors
- Preface
- Sites of naturally elevated carbon dioxide
- Migration in the ground of CO2 and other volatile contaminants. Theory and survey
- Levels of CO2 leakage in relation to geology
- CO2 emission in volcanic areas: case histories and hazards
- Controlled degassing of lakes with high CO2 content in Cameroon: an opportunity for ecosystem CO2-enrichment experiments
- Burning coal seams in southern Utah: a natural system for studies of plant responses to elevated CO2
- Long-term effects of enhanced CO2 concentrations on leaf gas exchange: research opportunities using CO2 springs
- Using Icelandic CO2 springs to understand the long-term effects of elevated atmospheric CO2
- Plant CO2 responses in the long term: plants from CO2 springs in Florida and tombs in Egypt
- Acidophilic grass communities of CO2 springs in central Italy: composition, structure and ecology
- Studying morpho-physiological responses of Scirpus lacustris from naturally CO2-enriched environments
- Carbon physiology of Quercus pubescens Wild, growing at the Bossoleto CO2 spring in central Italy
- Preliminary results on dissolved inorganic 13C and 14C content of a CO2-rich mineral spring of Catalonia (NE Spain) and of plants growing in its surroundings
- The impact of elevated CO2 on the growth of Agrostis canina and Plantago major adapted to contrasting CO2 concentrations
- Stomatal numbers in holm oak (Quercus ilex L.) leaves grown in naturally and artificially CO2-enriched environments
- Effects of CO2 on NH4+ assimilation by Cyanidium caldarium, an acidophilic hot springs and hot soils unicellular alga
- Can rising CO2 alleviate oxidative risk for the plant cell? Testing the hypothesis under natural CO2 enrichment
- Increasing concentrations of atmospheric CO2 and decomposition processes in forest ecosystems
- Index
Summary
SUMMARY
Plant species native to CO2 springs have evolved along gradients of naturally elevated atmospheric CO2 concentrations that differ as much as predicted for anthropogenic increases in CO2 over the next 100-200 years. This study characterized differences in gro wth and dry matter partitioning under controlled conditions in two species, Agrostis canina L. spp. montelucci (Selvi, 1994) and Plantago major L., adapted to contrasting atmospheric CO2 concentrations. When plants were grown at twice the present CO2 level there was a pronounced increase in biomass production, which was largely due to an initial stimulation in relative growth rate. In Agrostis canina, CO2 enrichment caused an increase in the relative partitioning of dry matter to the root, but effects were less pronounced in Plantago major. Specific leaf area was reduced by elevated CO2 in both species. Plants adapted to growth at high CO2 produced greater biomass and exhibited higher initial RGRs than plants adapted to lower CO2 concentrations, and in the case of Agrostis canina these differences were maintained at ambient CO2. Differences in original seed weight between populations were small (<10% for Agrostis and < 20% for Plantago). A positive correlation was, however, found between seed weight and the long-term atmospheric CO2 concentration at the site of collection and larger seeds were associated with higher initial plant RGRs under CO2 enriched conditions.
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- Plant Responses to Elevated CO2Evidence from Natural Springs, pp. 174 - 196Publisher: Cambridge University PressPrint publication year: 1997
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