长白山阔叶红松林生态系统的呼吸速率

应用生态学报

长白山阔叶红松林生态系统的呼吸速率

王淼¹;刘亚琴²;郝占庆¹;王跃思³

¹中国科学院沈阳应用生态研究所, 沈阳 110016;²辽东学院, 丹东 118003;³中国科学院大气物理研究所, 北京 100029

收稿日期:2005-09-06 修回日期:2006-08-14 出版日期:2006-10-18 发布日期:2006-10-18

Respiration rate of broadleaved Korean pine forest ecosystem in Changbai Mountainns

WANG Miao¹;LIU Yaqin²; HAO Zhanqing¹; WANG Yuesi³

¹Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;²Eastern Liaoning University, Dandong 118003, China;³Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China

Received:2005-09-06 Revised:2006-08-14 Online:2006-10-18 Published:2006-10-18

摘要/Abstract

摘要： 利用Li-6400便携式CO₂分析系统测定长白山原始阔叶红松林生态系统土壤呼吸、乔灌木的枝干呼吸和叶呼吸; 同步监测森林小气候气象因子；建立土壤、树干、叶与环境因子间的模型.根据阔叶红松林植被群落的特性,估算阔叶红松林生态系统不同组分呼吸速率.结果表明,阔叶红松林生态系统呼吸具有明显的成熟林特征,生态系统总呼吸量为1602.8 g C·m^-2.整个生态系统年平均呼吸速率为（4.37±2.98）μmol·m^-2·s^-1 (24 h平均数).其中,土壤呼吸、枝干和叶呼吸分别占整个森林生态系统呼吸的63%、16%和21%.乔木、灌木和草本叶呼吸速率分别占阔叶红松林生态系统植物呼吸的89.82%、5.57%和4.61%.阔叶红松林生态系统呼吸速率与大气和土壤温度之间呈显著的指数关系.大气和土壤温度能分别反映阔叶红松林生态系统呼吸的87%和95%.

关键词: 污泥, 重金属, 结缕草, 绿化, 处置利用

Abstract: In this paper, the respiration rates of soil, foliage, and stem and branch in the broadleaved Korean pine forest ecosystem of Changbai Mountains were measured by Li-6400 CO₂ analysis system in 2003, with the microclimate factors determined synchronously. The correlation models of ecosystem respiration with environmental factors were established, and the respiration rate of each component of the ecosystem was estimated based on the vegetation characteristics of the broadleaved Korean pine forest. The results showed that the annual total respiration rate of the ecosystem was 1 602.8 g C·m^-2, with a mean of （4.37±2.98） μmol·m^-2·s^-1, and the respiration of soil, foliage, and stem and branch contributed about 63%, 21%, and 16% of the total, respectively. There was a significant correlation between system respiration and daily mean air and soil temperature, and about 87% and 95% of the ecosystem respiration could be explained by the air and soil temperature, respectively.

Key words: Sewage sludge, Heavy metal, Zoysai japonica, Greening, Disposal and utilization

王淼¹;刘亚琴²;郝占庆¹;王跃思³. 长白山阔叶红松林生态系统的呼吸速率[J]. 应用生态学报.

WANG Miao¹;LIU Yaqin²; HAO Zhanqing¹; WANG Yuesi³. Respiration rate of broadleaved Korean pine forest ecosystem in Changbai Mountainns[J]. Chinese Journal of Applied Ecology.

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