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Open AccessArticle

Elevated CO2 and O3 Levels Influence the Uptake and Leaf Concentration of Mineral N, P, K in Phyllostachys edulis (Carrière) J.Houz. and Oligostachyum lubricum (wen) King f.

1
Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, China
2
School of Environment and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 10084, China
3
Experimental Center of Subtropical Forestry, Chinese Academy of Forestry, Fenyi 336600, China
*
Author to whom correspondence should be addressed.
Forests 2018, 9(4), 195; https://doi.org/10.3390/f9040195
Received: 5 March 2018 / Revised: 26 March 2018 / Accepted: 27 March 2018 / Published: 10 April 2018
(This article belongs to the Section Forest Ecology and Management)
Rising CO2 and O3 concentrations significantly affect plant growth and can alter nutrient cycles. However, the effects of elevated CO2 and O3 concentrations on the nutrient dynamics of bamboo species are not well understood. In this study, using open top chambers (OTCs), we examined the effects of elevated CO2 and O3 concentrations on leaf biomass and nutrient (N, P, and K) dynamics in two bamboo species, Phyllostachys edulis (Carrière) J.Houz. and Oligostachyum lubricum (wen) King f. Elevated O3 significantly decreased leaf biomass and nutrient uptake of both bamboo species, with the exception of no observed change in K uptake by O. lubricum. Elevated CO2 increased leaf biomass, N and K uptake of both bamboo species. Elevated CO2 and O3 simultaneously had no significant influence on leaf biomass of either species but decreased P and N uptake in P. edulis and O. lubricum, respectively, and increased K uptake in O. lubricum. The results indicate that elevated CO2 alleviated the damage caused by elevated O3 in the two bamboo species by altering the uptake of certain nutrients, which further highlights the potential interactive effects between the two gases on nutrient uptake. In addition, we found differential responses of nutrient dynamics in the two bamboo species to the two elevated gases, alone or in combination. These findings will facilitate the development of effective nutrient management strategies for sustainable management of P. edulis and O. lubricum under global change scenarios. View Full-Text
Keywords: elevated CO2; elevated O3; Phyllostachys edulis; Oligostachyum lubricum; biomass; N; P; K elevated CO2; elevated O3; Phyllostachys edulis; Oligostachyum lubricum; biomass; N; P; K
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Zhuang, M.; Li, Y.; Guo, Z.; Li, Y.; Pan, W.; Chen, S. Elevated CO2 and O3 Levels Influence the Uptake and Leaf Concentration of Mineral N, P, K in Phyllostachys edulis (Carrière) J.Houz. and Oligostachyum lubricum (wen) King f.. Forests 2018, 9, 195.

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