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应用生态学报 ›› 2004, Vol. ›› Issue (10): 1837-1841.

• 研究论文 • 上一篇    下一篇

紫色土人工林生态系统碳库与碳吸存变化

于占源1,3, 杨玉盛2, 陈光水2   

  1. 1. 中国科学院沈阳应用生态研究所, 沈阳 110016;
    2. 福建农林大学, 南平 353001
    3. 中国科学院研究生院, 北京 100039
  • 收稿日期:2003-12-26 修回日期:2004-05-08 出版日期:2004-10-15
  • 通讯作者: 杨玉盛,E-mail:ffeyys@public.npptt.fj.cn
  • 基金资助:
    中国科学院知识创新工程重要方向资助项目(KZCX3SW418)

Changes of carbon storage and carbon sequestration in plantation ecosystems on purple soil

YU Zhanyuan1,3, YANG Yusheng2, CHEN Guangshui2   

  1. 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. Fujian Agriculture and Forestry University, Nanping 353001, China;
    3. Graduate School of Chinese Academy of Sciences, Beijing 100039, China
  • Received:2003-12-26 Revised:2004-05-08 Online:2004-10-15

摘要: 采用时空代换法,以福建省宁化县严重退化紫色土人工林生态系统为对象,按侵蚀强度由强到弱选取4种生态恢复措施Ⅰ、Ⅱ、Ⅲ、Ⅳ,对比研究了碳库与碳吸存能力.结果表明,随着恢复程度的提高,生态系统的碳吸存能力逐渐增加,即Ⅰ<Ⅱ<Ⅲ<Ⅳ,4种措施生态系统碳库分别为1.4、8.5、25.6和37.6 t·hm-2;CO2年同化量分别是712.87、1 458.01、9 718.10和11 109.56 kg·hm-2.可见,恢复过程中的生态系统是本地区重要的碳汇之一.水土保持工程措施与生物措施相结合应是退化生态系统生态恢复的重要手段,但是减少人为干扰才是目前较为合理的恢复策略,使森林生态系统成为大气中CO2的一个重要的碳汇.

关键词: 紫色土, 碳库, 碳吸存, 碳汇, 生态恢复

Abstract: This paper studied the carbon storages and carbon sequestration capacities of degraded plantation ecosystems in purple soil area.Using space-time replacement method,four ecological restoration treatments (Ⅰ,Ⅱ,Ⅲ and Ⅳ) were selected on the basis of erosion intensions from high to low in Ninghua,Fujian.Treatment Ⅰ was not treated with any other measures after afforestation.Treatment Ⅱ adopted engineering soil and water conservation measure after afforestation.In treatment Ⅲ,the engineering measure associated biological measure was taken after afforestation.As for treatment Ⅳ,enclosure was adopted to protect against anthropogenic disturbances after afforestation.We observed that the carbon sequestration potential was increased with weakening erosion degree,i.e.,Ⅰ<Ⅱ<Ⅲ<Ⅳ.The carbon storage of 4 treatments was 1.4,8.5,25.6 and 37.6 t·hm-2,and the annual assimilation of CO2 was 712.87,1458.01,9718.10 and 11109.56 kg·hm-2,respectively.It was suggested that the restored forest ecosystem was one of the important carbon sinks in this area.Engineering soil and water conservation measure associated biological measure would be the main means of restoring degraded ecosystem.But presently,the reasonable strategy was to decrease human's disturbances,and hence,the enclosure for reforestation could be used to transform forest ecosystem into carbon sink.

Key words: Purple soil, Carbon storage, Carbon sequestration, Carbon sink, Ecological restoration

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