CAJ | 학술논문

通过对色季拉山急尖长苞冷杉( Abies georgei var. smithii)原始林内倒木分解释放CO2通量进行测定,分析了其生长季动态变化特征。结果表明：不同腐烂等级倒木分解释放CO2通量日变化不大,但随着倒木腐烂程度的加深,倒木释放CO2通量呈增大趋势,表现为3级腐烂>2级腐烂>1级腐烂,且差异显著( P<0.05)；不同腐烂等级倒木随季节变化其CO2通量具有相同的变化规律,均表现为8月>6月>10月>4月；不同腐烂等级倒木释放的CO2通量都有随温度升高而增强的趋势,但增强幅度不同,1级腐烂增强幅度最小,2级腐烂次之,3级腐烂最大。
통과대색계랍산급첨장포랭삼( Abies georgei var. smithii)원시림내도목분해석방CO2통량진행측정,분석료기생장계동태변화특정。결과표명：불동부란등급도목분해석방CO2통량일변화불대,단수착도목부란정도적가심,도목석방CO2통량정증대추세,표현위3급부란>2급부란>1급부란,차차이현저( P<0.05)；불동부란등급도목수계절변화기CO2통량구유상동적변화규률,균표현위8월>6월>10월>4월；불동부란등급도목석방적CO2통량도유수온도승고이증강적추세,단증강폭도불동,1급부란증강폭도최소,2급부란차지,3급부란최대。
The dynamic changing characteristics of Abies georgei var. smithii forest at growing season were analyzed by CO2 flux determination of dead-and-down of Abies georgei var. smithii virgin forest in Sejila mountain. The results showed that the CO2 fluxes emitted by dead-and-down in different decay classes changed little. Along with dead-and-down decay exacerbated,the CO2 flux increased,the order was third class>second class>first class, the difference was significant among the three classes. The CO2 fluxes of all decay classes of dead-and-down had the same changing regular pattern, which was Au-gust>June>October>April. The CO2 fluxes of different decay classes of dead-and-down increased a-long with the increase of temperature,but the increasing amplitude was different,the increasing ampli-tude of the first class was lowest,the second class was medium,the third class was the maximum.