摘要
对福建沿海沙地2种竹林土壤呼吸速率及各环境因子进行研究,结果表明:2种竹林土壤呼吸速率均有明显的日变化规律,呈单峰式变化,且大头典林的土壤呼吸速率明显高于绿竹林;地表温度和5 cm土温对绿竹林和大头典林的土壤呼吸速率影响最大,均呈极显著正相关。通过多元线性回归分析,得出沿海沙地2种竹林土壤呼吸速率与主要环境因子之间的多元回归模型。
The influences of different environmental factors upon the soil respiration rate in two species of bamboo plantation in costal sandy area of Fujian Province were studied. The results indicated that there was obvious diurnal change in the soil respiration rate, which showed a regular single apex rhythm, in both of the two species of bamboo plantations. The soil respiration of Dendrocalampsis beecheyana var. amoenus plantation was significantly higher than that of Dendrocalampsis oldhami plantation. The soil respiration rate of the two species of bamboo plantations was mostly influenced by the soil surface temperature and 5 cm deep soil temperature, and there was extremely significantly positive correlation between the soil respiration rate and the soil temperature. The multiple linear regressions models were built for the two species of bamboo plantations to express the relationship among the soil respiration rate and the main environmental factors in the costal sandy area of Fujian Province.
出处
《西南林业大学学报（自然科学）》
CAS
2012年第5期17-20,共4页
Journal of Southwest Forestry University：Natural Sciences
基金
福建省重大项目(2010N5002)资助
关键词
沿海沙地
竹林
土壤呼吸速率
环境因子
coastal sandy area
bamboo plantation
soil respiration rate
environmental factors
