亚高山草甸土纤维素分解过程及与环境因子的对应关系  

Decomposition process of cellulose in sub-high mountainous meadow soil and effects of climatic factors on the decomposition

作　　者：李英年[1] 姜文波[1] 

机构地区：[1]中国科学院西北高原生物研究所,青海西宁810008

出　　处：《土壤通报》2000年第3期122-124,共3页Chinese Journal of Soil Science

基　　金：中国科学院海北高寒草甸生态系统定位站基金资助

摘　　要：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 ) .Study on the meadow ecosystem of high mountain and low temperature in Beihai indicated that the decomposition rate reached maximum when monthly mean temperature was highest, whereas, the rate was lowest in February. It was also found that cellulose in non-degraded meadow of low wormwoods decomposed faster compared with cellulose in the degraded meadow. This was related to the environmental factors (P<0.001).

关 键 词：亚高山草甸土 纤维素分解 环境因子 矮嵩草草甸 

分 类 号：S155.292[农业科学—土壤学] S812.2[农业科学—农业基础科学]