CAJ | 학술논문

本文基于ChinaFLUX的定位观测数据,研究了二种典型森林生态系统、二种典型草地生态系统和一种典型农田生态系统碳固定价值年内流量和累积过程.研究结果揭示了不同类型生态系统碳固定价值总量的差异,以及价值流量过程和累积曲线的不同变化趋势.5种生态系统按碳固定年价值由大到小的排序为:禹城＞千烟洲＞长白山＞海北＞当雄.千烟洲碳固定日价值和月价值年内变异最小,其次为长白山,禹城再次之,年内变异最大的为当雄和海北.5种生态系统碳固定日价值的累积过程都能很好地拟合为三次方曲线.
본문기우ChinaFLUX적정위관측수거,연구료이충전형삼림생태계통、이충전형초지생태계통화일충전형농전생태계통탄고정개치년내류량화루적과정.연구결과게시료불동류형생태계통탄고정개치총량적차이,이급개치류량과정화루적곡선적불동변화추세.5충생태계통안탄고정년개치유대도소적배서위:우성＞천연주＞장백산＞해북＞당웅.천연주탄고정일개치화월개치년내변이최소,기차위장백산,우성재차지,년내변이최대적위당웅화해북.5충생태계통탄고정일개치적루적과정도능흔호지의합위삼차방곡선.
Based on data from ChinaFLUX this study analyzed the daily value flow processes of carbon fixation,monthly value distribution,and daily accumulative processes in a year of two kinds of typical forest,two kinds of grasses and a farmland.The results showed that the annual value of carbon fixation of these ecosystems was different,and flow processes and cumulative processes followed different trends over a year.The sequence of the five kinds of ecosystems based on the annual value of carbon fixation from largest to smallest was Yucheng warm temperate agriculture ecosystem(Yucheng),Qianyanzhou subtropical artificial coniferous forest ecosystem(Qianyanzhou),Changbai Mountain temperate mixed coniferous broad-leaved forest ecosystem(Changbaishan),Haibei alpine meadow ecosystem(Haibei)and Dangxiong alpine meadow ecosystem(Dangxiong).Variability in the daily and monthly carbon fixation at Qianyanzhou was the smallest,followed by Changbaishan,Yucheng,Dangxiong and Haibei.The cumulative processes of daily carbon fixation for the five kinds of ecosystems were well fitted to cubic curves.