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
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
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
A preliminary survey for CO2-rich mineral springs around the area of Girona (NE Spain) was conducted having in mind their possible use for biological research. At present, the survey has produced only two mineral springs that create a CO2 enriched atmosphere and that have natural vegetation around them. One of them (Sant Hilari) was further studied in order to discover (1) if the CO2 degassed from a spring has a different 13C and 14C signature from that of atmospheric CO2; (2) if plants growing in the surroundings of the spring have a distinctive C isotopic composition from those growing under a normal CO2 atmosphere; and (3) if it would be possible to back-estimate the mean CO2 concentration that plants have experienced during their lifetime, from considering plant C isotopic content as a mixture of two end-members, air CO2 and spring-derived CO2.
Results showed that: - Dissolved inorganic carbon of springwater was slightly enriched in 13C (-1.6%∘ PDB) and very depleted in 14C (3.15% of modern carbon) compared to atmospheric CO2 (-8.0%∘ PDB 13C and 100% 14C).
- The isotopic signal of 14C of CO2 spring was detected in plant materials but not that of 13C. This result corresponds to the much higher difference between the two end-members (spring and atmospheric CO2) compositions for 14C (near 100%) than for 13C(only 6.4%∘).
- Consequently, it is possible to estimate from 14C, but not from 13C, analysis that the mean CO2 concentration that Angelica sylvestris (Apiaceae) plants growing around the spring have experienced during their lifetime was 405 ppmv.
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- Plant Responses to Elevated CO2Evidence from Natural Springs, pp. 165 - 173Publisher: Cambridge University PressPrint publication year: 1997