中国地理科学 ›› 2016, Vol. 26 ›› Issue (1): 10-21.doi: 10.1007/s11769-015-0772-z

• 论文 • 上一篇    下一篇

Carbon Stock of Larch Plantations and Its Comparison with an Old-growth Forest in Northeast China

QI Guang1,2, CHEN Hua3, ZHOU Li1, WANG Xinchuang1,4, ZHOU Wangming1, QI Lin1, YANG Yuhua2, YANG Fengling2, WANG Qingli1, DAI Limin1   

  1. 1. State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110164, China;
    2. Key Laboratory of Ecological Restoration in Hilly Area, Pingdingshan University, Pingdingshan 467000, China;
    3. Department of Biology, University of Illinois at Springfield, Springfield, Illinois 62703, USA;
    4. Henan Polytechnic University, Jiaozuo 454000, China
  • 收稿日期:2014-06-25 修回日期:2014-10-23 出版日期:2016-01-27 发布日期:2015-12-18
  • 通讯作者: DAI Limin. E-mail:lmdai@iae.ac.cn E-mail:lmdai@iae.ac.cn
  • 基金资助:

    Under the auspices of National Key Technologies Research and Development Program of China (No. 2012BAD22B04), National Science Foundation Grant (No. DBI-0821649), Knowledge Innovation Program of Chinese Academy of Sciences (No. KZCX2-YW-Q1-0501), Research Foundation of Science and Technology Department of Henan Province (No. 142106000090), High Level Talent Project of Pingdingshan University (No. 2011009/G)

Carbon Stock of Larch Plantations and Its Comparison with an Old-growth Forest in Northeast China

QI Guang1,2, CHEN Hua3, ZHOU Li1, WANG Xinchuang1,4, ZHOU Wangming1, QI Lin1, YANG Yuhua2, YANG Fengling2, WANG Qingli1, DAI Limin1   

  1. 1. State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110164, China;
    2. Key Laboratory of Ecological Restoration in Hilly Area, Pingdingshan University, Pingdingshan 467000, China;
    3. Department of Biology, University of Illinois at Springfield, Springfield, Illinois 62703, USA;
    4. Henan Polytechnic University, Jiaozuo 454000, China
  • Received:2014-06-25 Revised:2014-10-23 Online:2016-01-27 Published:2015-12-18
  • Contact: DAI Limin. E-mail:lmdai@iae.ac.cn E-mail:lmdai@iae.ac.cn
  • Supported by:

    Under the auspices of National Key Technologies Research and Development Program of China (No. 2012BAD22B04), National Science Foundation Grant (No. DBI-0821649), Knowledge Innovation Program of Chinese Academy of Sciences (No. KZCX2-YW-Q1-0501), Research Foundation of Science and Technology Department of Henan Province (No. 142106000090), High Level Talent Project of Pingdingshan University (No. 2011009/G)

摘要:

The overall goal of this study was to understand carbon (C) stock dynamics in four different-aged Japanese larch (Larix kaempferi) plantations in Northeast China that were established after clear-cutting old-growth Korean pine deciduous forests. Four Japanese larch plantations which were at 10, 15, 21, and 35 years old and an old-growth Korean pine deciduous forest which was 300 years old in Northeast China were selected and sampled. We compared the C pools of biomass (tree, shrub and herb), litterfall (LF), and soil organic carbon (SOC) among them. The biomass C stock of larch plantation at 10, 15, 21, and 35 years old was 26.8, 37.9, 63.6, and 83.2 Mg/ha, respectively, while the biomass C stock of the old-growth Korean pine deciduous forest was 175.1 Mg/ha. The SOC stock of these larch plantations was 172.1, 169.7, 140.3, and 136.2 Mg/ha respectively, and SOC stock of 170.4 Mg/ha in the control of old-growth forest. The biomass C stock increased with stand age of larch plantations, whereas SOC stock decreased with age, and C stock of LF did not change significantly (P > 0.05). The increase of biomass C offset the decline of SOC stock with age, making total carbon stock (TCS) of larch plantations stable from stand ages of 10-35 years. The TCS in larch plantations was much smaller than that in the old-growth forest, suggesting that the?conversion of old-growth forests to young larch plantations releases substantial C into the atmosphere.

关键词: larch plantation, old-growth forest, biomass carbon, soil organic carbon, total carbon stocks

Abstract:

The overall goal of this study was to understand carbon (C) stock dynamics in four different-aged Japanese larch (Larix kaempferi) plantations in Northeast China that were established after clear-cutting old-growth Korean pine deciduous forests. Four Japanese larch plantations which were at 10, 15, 21, and 35 years old and an old-growth Korean pine deciduous forest which was 300 years old in Northeast China were selected and sampled. We compared the C pools of biomass (tree, shrub and herb), litterfall (LF), and soil organic carbon (SOC) among them. The biomass C stock of larch plantation at 10, 15, 21, and 35 years old was 26.8, 37.9, 63.6, and 83.2 Mg/ha, respectively, while the biomass C stock of the old-growth Korean pine deciduous forest was 175.1 Mg/ha. The SOC stock of these larch plantations was 172.1, 169.7, 140.3, and 136.2 Mg/ha respectively, and SOC stock of 170.4 Mg/ha in the control of old-growth forest. The biomass C stock increased with stand age of larch plantations, whereas SOC stock decreased with age, and C stock of LF did not change significantly (P > 0.05). The increase of biomass C offset the decline of SOC stock with age, making total carbon stock (TCS) of larch plantations stable from stand ages of 10-35 years. The TCS in larch plantations was much smaller than that in the old-growth forest, suggesting that the?conversion of old-growth forests to young larch plantations releases substantial C into the atmosphere.

Key words: larch plantation, old-growth forest, biomass carbon, soil organic carbon, total carbon stocks