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应用生态学报 ›› 2005, Vol. 16 ›› Issue (7): 1195-1199.

• 研究论文 • 上一篇    下一篇

长白山原始阔叶红松林不同演替阶段地下生物量与碳、氮贮量的比较

杨丽韫1,2, 罗天祥3, 吴松涛2   

  1. 1. 中国科学院地理科学与资源研究所, 北京 100101;
    2. 北京科技大学冶金与生态工程学院, 北京 100083;
    3. 中国科学院青藏高原研究所, 北京 100085
  • 收稿日期:2004-05-21 修回日期:2004-11-14 出版日期:2005-07-15 发布日期:2005-07-15
  • 通讯作者: 杨丽韫,女,1974年生,博士.主要从事恢复生态学研究,发表论文9篇.E-mail:wendy6393@sina.com
  • 基金资助:
    中国科学院知识创新工程项目(CX10G-E01-02-03)和中美国际合作资助项目(02-IC-11242343-029).

Root biomass and underground C and N storage of primitive Korean pine and broad-leaved climax forest in Changbai Mountains at its different succession stages

YANG Liyun1,2, LUO Tianxiang3, WU Songtao 2   

  1. 1. Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;
    2. School of Metallurgical and Ecological Engineering, Beijing University of Science and Technology, Beijing 100083, China;
    3. Institute of Qinghai-Tibet Altiplano Research, Chinese Academy of Sciences, Beijing 100085, China
  • Received:2004-05-21 Revised:2004-11-14 Online:2005-07-15 Published:2005-07-15

摘要: 以我国东北长白山自然保护区内同一海拔水平的原始阔叶红松林及其次生林--白桦山杨成熟林和幼林为对象,对不同演替阶段林地地下生物量与碳、氮贮量进行了研究.结果表明,随着演替的进行,白桦山杨幼林、成熟林和阔叶红松林根系生物量分别为2.437、2.742和4.114 kg·m-2,根系碳贮量分别为1.113、1.323和2.023kg·m-2,土壤碳贮量分别为11.911、11.943和12.87 kg·m-2,林地地下碳贮量分别为13.024、13.266和14.610kg·m-2.3块林地中根系氮贮量分别为0.035、0.032和0.039 kg·m-2,土壤氮贮量分别为1.207、1.222和0.915kg·m-2,林地地下氮贮量分别为1.243、1.254和0.955 kg·m-2.在长白山地区次生林演替和恢复过程中林地地下部分是潜在的碳汇,而土壤氮贮量则没有明显的变化规律.

关键词: 长白山, 原始阔叶红松林, 白桦山杨次生林, 地下生物量, 地下碳、氮贮量

Abstract: With more than 200 years old primitive Korean pine and broad-leaved climax forest and its two 20 and 80 years old secondary Populus davidiana and Betula platyphylla forests in Changbai Mountains as test objects,this paper studied their root biomass and underground C and N storage.The results showed that with forest succession,the root biomass of 20 years old,80 years old,and climax forests was 2.437,2.742 and 4.114 kg·m-2,respectively.The root C storage was 1.113,1.323 and 2.023 kg·m-2,soil C storage was 11.911,11.943 and 12.587 kg·m-2,and underground C storage was 13.024,13.266 and 14.610 kg·m-2,respectively,while the root N storage was 0.035,0.032 and 0.038 kg·m-2,soil N storage was 1.207,1.222 and 0.915 kg·m-2,and underground N storage was 1.243,1.254 and 0.955 kg·m-2,respectively,which indicated that along with forest succession,forest underground became a potential “carbon sink",whereas underground N storage did not change obviously.

Key words: Changbai Mountains, Primitive Korean pine and broad-leaved climax forest, Secondary Populus davidiana and Betula platyphylla forest, Root biomass, Underground C and N storage

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