对海北高寒草甸生态系统的矮嵩草研究表明 ,在亚高山草甸土中纤维素的分解 ,作用均在月均温度最高时达最大 ,2月份最小 ,年内表现有明显的单峰式曲线变化过程 ;非退化矮嵩草草甸的纤维素分解显著高于退化的矮嵩草草甸 ;纤维素分解除自身的季节变化规律外 ,与气象等环境因子有关 ,特别是与水热协调配合具有极显著线性正相关关系 (P <0 .0 0 1 ) . Studies on Kobresia humilis in the Haibei alpine meadow ecosystem showed that the decomposition of cellulose in the subalpine meadow soil reached the maximum at the highest monthly average temperature and the lowest in February, with obvious unimodal curves during the year Cellulolytic process in the non-degraded Kobresia humilis meadow was significantly higher than that in the degraded Kobresia humilis meadow. In addition to its seasonal variation, cellulose decomposition was related to environmental factors such as meteorology, especially with water and heat With a significant linear positive correlation (P <0. 001).