Elevated CO2 accelerates net assimilation rate and enhance growth of dominant shrub species in a sand dune in central Inner Mongolia

Xie, Zhixiao; Rimmington, Glyn M.; Yu, Yuanjiang; Gao, Yong; Zhou, Guangsheng; An, Ping; Li, Xiangjun; Tsuji, Wataru; Shimizu, Hideyuki

doi:10.1016/j.envexpbot.2009.11.005

Cited by 12 publications

(8 citation statements)

References 36 publications

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“…Many researchers have reported that elevated CO 2 accelerates the net assimilation rate and enhances plant growth (King et al, 2005;Zheng et al, 2010). In contrast to the beneficial effects of elevated CO 2 , O 3 is generally detrimental to plant growth and metabolism Lindroth, 2010;Noormets et al, 2010;Pinto et al, 2010).…”

Section: Discussionmentioning

confidence: 98%

Elevated Carbon Dioxide and/or Ozone Concentrations Induce Hormonal Changes in Pinus tabulaeformis

Zhang

et al. 2011

J Chem Ecol

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We investigated endogenous plant hormones and needle growth in Pinus tabulaeformis plants grown in open-top chambers and exposed to ambient or elevated concentrations of carbon dioxide (CO(2)) and/or ozone (O(3)). Exposure to elevated CO(2) for 100 days significantly increased the change in fresh needle weight, indole-3-acetic acid (IAA), isopentenyl-adenosine (iPA), and dihydrozeatin riboside (DHZR) content. Abscisic acid (ABA) content decreased, and no effect was observed on zeatin riboside (ZR) content or changes in needle dry weight. The ratios of IAA/ABA and total cytokinins (CKs)/ABA [Formula: see text] were increased. Elevated O(3) significantly decreased IAA and ZR, and decreased the ratios of IAA/ABA and CKs/ABA. Ozone treatment increased ABA content but did not change iPA or DHZR content or change fresh or dry needle weights. The combination treatment significantly increased ABA content and the IAA/ABA ratio but decreased the total CKs/ABA ratio and had no effect on CKs or IAA content or change in fresh and dry needle weights. The results indicate that elevated CO(2) ameliorated the effects of elevated O(3) on tree growth.

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Section: Discussionmentioning

confidence: 98%

Elevated Carbon Dioxide and/or Ozone Concentrations Induce Hormonal Changes in Pinus tabulaeformis

Zhang

et al. 2011

J Chem Ecol

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“…Elevated atmospheric CO 2 concentration can enhance plant growth [6], [43], and the enhanced plant productivity can increase soil C input. The importance of C substrate to R S has been well documented [12], [44].…”

Section: Discussionmentioning

confidence: 99%

Organic Matter and Water Addition Enhance Soil Respiration in an Arid Region

Lai¹,

Wang²,

Tian³

et al. 2013

PLoS ONE

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Climate change is generally predicted to increase net primary production, which could lead to additional C input to soil. In arid central Asia, precipitation has increased and is predicted to increase further. To assess the combined effects of these changes on soil CO2 efflux in arid land, a two factorial manipulation experiment in the shrubland of an arid region in northwest China was conducted. The experiment used a nested design with fresh organic matter and water as the two controlled parameters. It was found that both fresh organic matter and water enhanced soil respiration, and there was a synergistic effect of these two treatments on soil respiration increase. Water addition not only enhanced soil C emission, but also regulated soil C sequestration by fresh organic matter addition. The results indicated that the soil CO2 flux of the shrubland is likely to increase with climate change, and precipitation played a dominant role in regulating soil C balance in the shrubland of an arid region.

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“…A. sphaerocephala, H. laeve, A. ordosica and C. korshinskii were the dominant and indigenous species in this area. A. sphaerocephala was distributed in moving and semi-moving dunes, while the other three species were distributed in semi-fixed and fixed dunes (Zheng et al 2010).…”

Section: Study Site and Materialsmentioning

confidence: 97%

“…and Caragana korshinskii Kom. (Leguminosae), are the main indigenous species in large areas of active and stabilized sandy desert in the Mu Us Sandy Land in China, and they play an important role in different vegetation succession stages of local ecosystems and restoration of degraded sandy grasslands (Zheng et al 2010). Understanding the ecophysiological responses of these dominant species to increasing CO 2 concentrations, especially high CO 2 concentrations that have rarely been examined in previous research, is crucial to evaluate the possible effects of future climate change on vegetation.…”

Section: Introductionmentioning

confidence: 99%

Differential influence of elevated CO₂ on gas exchange and water use efficiency of four indigenous shrub species distributed in different sandy environments in central Inner Mongolia

Lai

Zhou

et al. 2018

Ecological Research

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In view of the increase in global warming and carbon dioxide (CO2) concentrations, it is essential to investigate the influences of climate change on plant growth and water use in arid and semi‐arid grassland species. Experiments were conducted to understand the ecophysiological response of four indigenous species to elevated CO2 in the semi‐arid sandy grassland of central Inner Mongolia. Seedlings of the four species were grown for 8 weeks at four different consistently elevated CO2 concentrations in the environment‐controlled growth chambers. All four elevated CO2 concentrations (400, 800, 1200, 1600 ppm) were found to result in decreased stomatal conductance (26–86%), decreased transpiration rate (21–80%), increased shoot water potential (1–42%) and increased water use efficiency (WUE) (10–412%) for two Artemisia species and Caragana korshinskii. Under our experimental conditions, the two Artemisia species and C. korshinskii would benefit more than Hedysarum laeve from exposure to elevated CO2 in terms of higher shoot water potential and WUE combined with lower stomatal conductance and transpiration rate. The results indicate that in a warmer, CO2‐enriched future atmospheric environment, WUE in semi‐arid grasslands may be higher than previously expected. Our findings will provide information for screening appropriate species for restoration of the degraded sandy grasslands in semi‐arid areas under future climate change scenarios.

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Elevated CO2 accelerates net assimilation rate and enhance growth of dominant shrub species in a sand dune in central Inner Mongolia

Cited by 12 publications

References 36 publications

Elevated Carbon Dioxide and/or Ozone Concentrations Induce Hormonal Changes in Pinus tabulaeformis

Elevated Carbon Dioxide and/or Ozone Concentrations Induce Hormonal Changes in Pinus tabulaeformis

Organic Matter and Water Addition Enhance Soil Respiration in an Arid Region

Differential influence of elevated CO₂ on gas exchange and water use efficiency of four indigenous shrub species distributed in different sandy environments in central Inner Mongolia

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Elevated CO2 accelerates net assimilation rate and enhance growth of dominant shrub species in a sand dune in central Inner Mongolia

Cited by 12 publications

References 36 publications

Elevated Carbon Dioxide and/or Ozone Concentrations Induce Hormonal Changes in Pinus tabulaeformis

Elevated Carbon Dioxide and/or Ozone Concentrations Induce Hormonal Changes in Pinus tabulaeformis

Organic Matter and Water Addition Enhance Soil Respiration in an Arid Region

Differential influence of elevated CO2 on gas exchange and water use efficiency of four indigenous shrub species distributed in different sandy environments in central Inner Mongolia

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Product

Resources

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Differential influence of elevated CO₂ on gas exchange and water use efficiency of four indigenous shrub species distributed in different sandy environments in central Inner Mongolia