中文摘要：

在浙江临安市雷竹主产区定位监测1年内土壤各组分呼吸动态。结果表明：雷竹林地土壤总呼吸速率、土壤生物异养呼吸速率及根系自养呼吸速率的年平均值分别为5.42,2.24和2.89μmolCO2·m-2s-1;1年中分别在2和7月出现土壤呼吸峰值;雷竹林地土壤年释放CO2量为73.40t·hm-2a-1,其中林地异养呼吸和自养呼吸分别占总呼吸的45.67%和54.33%;土壤呼吸、土壤生物异养呼吸和土壤根系自养呼吸均与土壤温度呈明显的指数关系,以土壤5cm深处温度为依据得到的温度系数（Q10值）分别为1.70,1.86和1.48,土壤总呼吸与土深5cm处土温、8：00气温、土壤水溶性有机碳含量和土壤总有机碳含量呈显著正相关（P〈0.01）,而土壤含水量、8：00大气相对湿度和土壤水溶性有机碳含量与土壤呼吸无显著相关性。

英文摘要：

An experiement was conducted in typical Phyllostachys praecox stands located in Linan,Zhejiang Province to study the dynamic change of soil respiration and the relationship between soil respiration and environmental factors.The results indicated that the soil total respiration rate,heterotrophic respiration rate,and autotrophic respiration rate of Phyllostachys praecox were 5.42,2.24 and 2.89 μmol·m-2s-1 respectively.The annual dynamic pattern displayed a double-peak curve and changed greatly.The amount of CO2 released from Phyllostachys Praecox was 73.40 t·hm-2a-1,including 45.67% heterotrophic respiration and 54.33% autotrophic respiration.Soil respiration rate,heterotrophic respiration rate and autotrophic respiration rate had strong exponential correlations with soil temperature,especially the temperature at 5 cm depth of the soil,and the Q10 value at 5 cm depth was 1.70,1.68 and 1.48 respectively.The soil respiration had significant correlation with the soil temperature in 5 cm depth,atmospheric temperature at 8：00,water soluble organic C content,total organic C content,while it had no significant correlation with the soil water content,relative humidity at 8：00,and the content of water soluble organic N.