CAJ | 학술논문

2011年9月到2012年8月，选取湖南省长沙市湖南省森林植物园樟树 Cinnamomum camphora 人工林作为试验样地，设置添加凋落物（DL）、去除凋落物（RL）和对照（CK）3种处理，对不同处理下土壤呼吸速率进行12月的连续观测。研究结果表明：樟树人工林不同处理下土壤呼吸呈显著的季节动态，均呈单峰曲线。添加凋落物处理下（DL），土壤呼吸的年均值为2.816，去除凋落物处理下，土壤呼吸的年均值为1.943，与对照的2.534相比分别高14.33%和低23.01%。樟树人工林凋落物处理下土壤呼吸速率与5 cm 土壤温度呈极显著线性相关（P ＜0.01），与5 cm 土壤湿度相关性不显著（P ＞0.05）。樟树人工林添加和去除凋落物处理下土壤呼吸 Q10值分别为2.04、2.02，均高于对照的1.87。由此可见凋落物对森林 CO2通量有重要影响。
2011년9월도2012년8월，선취호남성장사시호남성삼림식물완장수 Cinnamomum camphora 인공림작위시험양지，설치첨가조락물（DL）、거제조락물（RL）화대조（CK）3충처리，대불동처리하토양호흡속솔진행12월적련속관측。연구결과표명：장수인공림불동처리하토양호흡정현저적계절동태，균정단봉곡선。첨가조락물처리하（DL），토양호흡적년균치위2.816，거제조락물처리하，토양호흡적년균치위1.943，여대조적2.534상비분별고14.33%화저23.01%。장수인공림조락물처리하토양호흡속솔여5 cm 토양온도정겁현저선성상관（P ＜0.01），여5 cm 토양습도상관성불현저（P ＞0.05）。장수인공림첨가화거제조락물처리하토양호흡 Q10치분별위2.04、2.02，균고우대조적1.87。유차가견조락물대삼림 CO2통량유중요영향。
From Sept. 2011 to August 2012, the Cinnamomum camphora plantation grown in Hunan Forest Botanical Garden, which located in southern suburbs of Changsha city, were selected as the experimental sample plots. Three treatments such as litter addition(DL), litter exclusion(RL) and control (CK) were set. The soil respiratory rate values of different treatments were continuously observed for 12 months. The results show that under different treatments the soil respiration of C. camphora plantation appeared significant seasonal dynamics, and they all presented single peak curves; The annual average value of the soil respiration with litters addition treatment was 2.816, and the annual average value of the soil respiration with litters exclusion treatment was 1.943, which were 14.33% and 23.01% higher than that of the control, respectively; The soil respiration rate and soil temperature in 5 cm depth of C. camphora plantation showed a significant linear correlation(P < 0.01), and had no significant correlation with soil moisture (P >0.05); The Q10 values of C. camphora plantation under DL and RL treatments was 2.04 and 2.02, respectively, which were all higher than the value of CK(1.87). Thus, the litters had important influence on forest CO2 flux.