Needle-Age Related Variability in Nitrogen, Mobile Carbohydrates, and δ¹³C within Pinus koraiensis Tree Crowns

• Cai-Feng Yan,

  Affiliations State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China, Graduate University of Chinese Academy of Sciences, Beijing, China

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• Shi-Jie Han,

  Affiliation State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China

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• Yu-Mei Zhou,

  Affiliation State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China

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• Cun-Guo Wang,

  Affiliations State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China, Graduate University of Chinese Academy of Sciences, Beijing, China

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• Guan-Hua Dai,

  Affiliation Research Station of Changbai Moutain Forest Ecosystems, Chinese Academy of Sciences, Erdaobaihe, China

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• Wen-Fa Xiao,

  Affiliation Key Laboratory of Forest Ecology and Environment, State Forestry Administration, Chinese Academy of Forestry, Beijing, China

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• Mai-He Li

  * E-mail: maihe.li@wsl.ch

  Affiliations Tree Physioecology, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland, State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China

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