| 北亚热带落叶阔叶林土壤呼吸时间变化特征 |
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| 引用本文： | 何都良,李涵茂,王亚萍.北亚热带落叶阔叶林土壤呼吸时间变化特征[J].南京气象学院学报,2015,7(1):53-57. |
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| 作者姓名： | 何都良 李涵茂 王亚萍 |
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| 作者单位： | 南京信息工程大学 江苏省大气环境与装备技术协同创新中心, 南京, 210044;南京信息工程大学 江苏省大气环境监测与污染控制高技术重点实验室, 南京, 210044;南京信息工程大学 江苏省大气环境与装备技术协同创新中心, 南京, 210044;南京信息工程大学 江苏省大气环境监测与污染控制高技术重点实验室, 南京, 210044;南京信息工程大学 江苏省大气环境与装备技术协同创新中心, 南京, 210044;南京信息工程大学 江苏省大气环境监测与污染控制高技术重点实验室, 南京, 210044 |
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| 基金项目： | 国家自然科学基金(41175136);江苏省"青蓝工程"项目(2014) |
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| 摘 要： | 利用LI-8100开路式土壤碳通量系统测定龙王山森林土壤呼吸速率,研究北亚热带落叶阔叶林土壤呼吸速率的日变化和季节性变化规律.结果表明:北亚热带落叶阔叶林土壤呼吸速率在12—14时达到最大,与土壤温度变化基本一致;森林土壤呼吸速率随土壤温度的季节性变化而变化,在夏季土壤呼吸速率较高,在冬季土壤呼吸速率较低;土壤呼吸速率与土壤温度间存在着明显的指数关系,土壤呼吸温度敏感系数Q10为2.81.
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| 关 键 词： | 北亚热带落叶阔叶林 土壤呼吸 日变化 季节性变化 Q10 |
| 收稿时间： | 2014/10/21 0:00:00 |
Temporal variation characteristics of soil respiration in North subtropical deciduous broad-leaved forest |
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| HE Duliang,LI Hanmao and WANG Yaping.Temporal variation characteristics of soil respiration in North subtropical deciduous broad-leaved forest[J].Journal of Nanjing Institute of Meteorology,2015,7(1):53-57. |
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| Authors: | HE Duliang LI Hanmao and WANG Yaping |
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| Institution: | Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science & Technology, Nanjing 210044;Jiangsu Key Laboratory of Atmospheric Enviromnent Monitoring and Pollution Control, Nanjing University of Information Science & Technology, Nanjing 210044;Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science & Technology, Nanjing 210044;Jiangsu Key Laboratory of Atmospheric Enviromnent Monitoring and Pollution Control, Nanjing University of Information Science & Technology, Nanjing 210044;Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science & Technology, Nanjing 210044;Jiangsu Key Laboratory of Atmospheric Enviromnent Monitoring and Pollution Control, Nanjing University of Information Science & Technology, Nanjing 210044 |
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| Abstract: | To investigate the diurnal variation and seasonal variation characteristics of soil respiration rate in north subtropical deciduous broad-leaved forest,the soil respiration rates in Longwang Mountain forest of Nanjing,Jiangsu province were measured using LI-8100 automated soil CO2 flux system,and the soil temperature and moisture were recorded at the same time.The result showed that soil respiration rate increased and reached its peak during 12:00 to 14:00,which is generally in accordance with the diurnal change of soil temperature.As for the seasonal variation,the forest soil respiration rate changed with the seasonal variation of soil temperature.The soil respiration rate was relatively high when the soil temperature was high in summer,and vice versa.Significant relationship was found between soil respiration rate and soil temperature,and the Q10 of deciduous broad-leaved forest soil in Longwang Mountain was calculated to be 2.81. |
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| Keywords: | north subtropical deciduous broad-leaved forest soil respiration diurnal variation seasonal variation Q10 |
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