【作者】 吴志丹； 尤志明； 江福英； 王峰； 王义祥； 张磊；

【Author】 WU Zhi-dan;YOU Zhi-ming;JIANG Fu-ying;WANG Feng;WANG Yi-xiang;ZHANG Lei;Tea Research Institute,Fujian Academy of Agricultural Sciences;Agriculture Ecology Institute,Fujian Academy of Agricultural Sciences;

【机构】 福建省农业科学院茶叶研究所； 福建省农业科学院农业生态研究所；

【摘要】 2011年1-12月,采用LI-Cor8100开路式土壤碳通量测定系统观测茶园土壤呼吸速率,分析茶园土壤呼吸速率的季节变化和在茶行尺度上的空间差异。结果表明,茶园土壤呼吸月动态变化呈明显的单峰曲线特征,峰值出现在8月;在茶行尺度上,茶园土壤呼吸速率存在明显的空间异质性,土壤呼吸速率高值通常出现在距离茶树基部较近的位置。茶园土壤呼吸速率与温度相关关系极显著（P<0.01）,土壤10 cm温度能解释茶园土壤呼吸速率月动态变化的84.43%;指数方程计算的平均茶园土壤呼吸Q₁₀值为1.75。更多还原

【Abstract】 By using Li-Cor8100 open soil carbon flux system,the dynamic changes of soil respiration rate in tea garden were measured from January 2011 to December 2011,analyzed the monthly variation and spatial heterogeneity of soil respiration in tea garden.The result showed that the monthly variation of the soil respiration in tea garden was single-peaked,with the peak appeared in August,And there were significant spatial patterns for soil respiration at the plant scale in tea garden,the higher soil respiration rates tended to occur near the tea plant.There was a significant positive correlation between the soil respiration rate and soil temperature in tea garden,and soil temperature explained 84.43% of the monthly variation of soil respiration.The Q₁₀ value of the soil respiration in tea garden was 1.75.更多还原