Effects of Elevated Carbon Dioxide on Plant Biomass Production and Competition in a Simulated Neutral Grassland Community

Jongen, Marjan; Jones, Mike

doi:10.1006/anbo.1998.0654

Cited by 28 publications

(22 citation statements)

References 38 publications

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“…Such an increase in decomposition rates, driven by CO 2 ‐induced shifts in botanical composition, is probably not peculiar to this site as in temperate grassland; an increasing abundance of dicots and legumes is a common response to elevated CO 2 , having been observed under a wide range of managed conditions (e.g. in ryegrass/clover associations Hebeisen et al , 1997; Jongen & Jones, 1998; natural grassland Teyssonneyre et al , 2002 and in this grazed temperate grassland Edwards et al , 2001; Newton et al , 2001; Ross et al , 2004). In addition, not only does a high legume content induce a higher proportion of more rapidly decomposing litter but may also increase the average N concentration of the nonlegume species and thus contribute to a faster decomposition of the latter (Hartwig et al , 2000).…”

Section: Discussionmentioning

confidence: 87%

Elevated CO₂effects on decomposition processes in a grazed grassland

Allard

Newton

Lieffering

et al. 2004

Global Change Biology

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The effects of elevated atmospheric CO 2 (475 lL L À1 ) on in situ decomposition of plant litter and animal faecal material were studied over 2 years in a free air CO 2 enrichment (FACE) facility. The pasture was grazed by sheep and contained a mixture of C 3 and C 4 grasses, legumes and forbs. There was no effect of elevated CO 2 on decomposition within plant species but marked differences between species with faster decomposition in dicots; a group that increased in abundance at elevated CO 2 . Decomposition of mixed herbage root material occurred at a similar rate to that of leaf litter suggesting that any CO 2 -induced increase in carbon allocation to roots would not reduce rates of decomposition. Sheep faeces resulting from a 'high-CO 2 diet' decomposed significantly slower during summer but not during winter. The overall outcome of these experiments were explored using scenarios that took account of changes in botanical composition, allocation to roots and the presence of herbivores. In the absence of herbivores, elevated CO 2 led to a 15% increase in the rate of mass loss and an 18% increase in the rate of nitrogen (N) release. In the presence of herbivores, these effects were partially removed (11% increase in rate of mass loss and 9% decrease in N release rate) because of the recycling occurring through the animals in the form of faeces.

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Section: Discussionmentioning

confidence: 87%

Elevated CO₂effects on decomposition processes in a grazed grassland

Allard

Newton

Lieffering

et al. 2004

Global Change Biology

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“…Increased atmospheric CO 2 concentrations alter the weight, length and architecture of plant roots [62], and affect the biotic and abiotic environment of the root system, which results in increased total rhizo-deposition [63], and variations in the microbial community structure and the activities of rhizosphere microorganisms. O'Neill et al [64] reported that elevated atmospheric CO 2 enhanced mycorrhizal colonisation of pine and oak seedlings.…”

Section: Impact Of Elevated Co 2 On the Microbial Activity In Soils Cmentioning

confidence: 99%

Using elevated CO2 to increase the biomass of a Sorghum vulgare×Sorghum vulgare var. sudanense hybrid and Trifolium pratense L. and to trigger hyperaccumulation of cesium

Huibin

Tang

Zhang

et al. 2009

Journal of Hazardous Materials

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“…y l x, dotted line. Chiariello & Field, 1996 ;Ko$ rner et al, 1997 ;Jongen & Jones, 1998). This can be related in part to the gaseous nature of CO #, for which plants are not likely to compete, but which might have some effects on plant-plant interactions by intensifying competition for other resources such as N or light (Bazzaz & McConnaughay, 1992).…”

Section: mentioning

confidence: 99%

Effect of competition on the responses of grasses and legumes to elevated atmospheric CO₂ along a nitrogen gradient: differences between isolated plants, monocultures and multi‐species mixtures

et al. 1999

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The responses to CO # of perennial grasses (Danthonia richardsonii and Phalaris aquatica) and legumes (Lotus pedunculatus and Trifolium repens) were compared under controlled conditions for isolated plants, monoculture stands and mixed-species stands along a N gradient to test whether : plant-plant interactions between species in mixed stands changed with concentration of CO # ; responses to CO # of species in mixtures could be related to their responses as single stands ; responses of mixtures to CO # could be related to the responses of individual species to CO # and to competition. Plants were grown for 60 d in sand, using nutrient solutions (six nitrate concentrations from 0.25 to 16 mM NO $ ), at ambient (c. 357 µl l −" ) or elevated CO # (c. 712 µl l −" ). Species dominance in the mixtures depended more on the range of N than of CO # concentration provided : T. repens and L. pedunculatus dominated at low concentrations of N ; L. pedunculatus and P. aquatica performed better at high concentrations. Responses of species in mixtures to CO # were related to their responses in monocultures but not to those of isolated plants. Species biomass proportions in mixtures under ambient CO # determined the outcome of mixture responses to CO # more than of individual species responses to CO # . These results emphasize the influence of plant-plant interactions on community responses to CO # , since mixture behaviour under elevated CO # could not be scaledup from responses by isolated plants in this experiment.

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Effects of Elevated Carbon Dioxide on Plant Biomass Production and Competition in a Simulated Neutral Grassland Community

Cited by 28 publications

References 38 publications

Elevated CO₂effects on decomposition processes in a grazed grassland

Elevated CO₂effects on decomposition processes in a grazed grassland

Using elevated CO2 to increase the biomass of a Sorghum vulgare×Sorghum vulgare var. sudanense hybrid and Trifolium pratense L. and to trigger hyperaccumulation of cesium

Effect of competition on the responses of grasses and legumes to elevated atmospheric CO₂ along a nitrogen gradient: differences between isolated plants, monocultures and multi‐species mixtures

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Effects of Elevated Carbon Dioxide on Plant Biomass Production and Competition in a Simulated Neutral Grassland Community

Cited by 28 publications

References 38 publications

Elevated CO2effects on decomposition processes in a grazed grassland

Elevated CO2effects on decomposition processes in a grazed grassland

Using elevated CO2 to increase the biomass of a Sorghum vulgare×Sorghum vulgare var. sudanense hybrid and Trifolium pratense L. and to trigger hyperaccumulation of cesium

Effect of competition on the responses of grasses and legumes to elevated atmospheric CO2 along a nitrogen gradient: differences between isolated plants, monocultures and multi‐species mixtures

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Elevated CO₂effects on decomposition processes in a grazed grassland

Elevated CO₂effects on decomposition processes in a grazed grassland

Effect of competition on the responses of grasses and legumes to elevated atmospheric CO₂ along a nitrogen gradient: differences between isolated plants, monocultures and multi‐species mixtures