鼓山茶园土壤碳氮磷生态化学计量学特征

Ecological Stoichiometry Characteristics of Soil Carbon,Nitrogen and Phosphorus in the Tea Garden of Drum Mountain

为了阐明茶园土壤养分生态化学计量学特征,对福州鼓山3a,8a和25a常规茶园及30a有机茶园土壤碳、氮、磷生态化学计量学特征进行测定与分析。结果表明,3a常规茶园、8a常规茶园、25a常规茶园和30a有机茶园土壤C/N、C/P和N/P比分别为9.79,36.25,3.69;9.07,21.02,2.30;10.57,62.54,5.89和10.28,52.14,5.06;土壤C/N、C/P和N/P比均表现为25a常规茶园>30a有机茶园;25a常规茶园>3a常规茶园>8a常规茶园;影响土壤C/N、C/P和N/P比的因子随着树龄和管理方式的不同而改变。

In order to clarify the responses of soil ecological stoichiometry in tea garden, the ecological stoi- chiometry characteristics of soil carbon, nitrogen and phosphorus in 3 kinds of regular tea garden （3-year, 8- year and 25-year） and 30-year organic tea garden in Drum Mountain in Fuzhou were analyzed. The results showed. Averaged values of C/N,C/P,N/P ratios in 3-year regular tea garden and 8-year regular tea garden and 25-year regular tea garden and 30-year organic tea garden were 9.79,36.25,3.69; 9.07,21.02,2.30; 10.57,62.54,5.89 and 10.28,52. 14,5.06, respectively. Soil C/N,C/P,N/P ratios of 25-year regular tea garden were bigger than that of the 30-year organic tea garden, 25-year regular tea garden were bigger than that of the 3-year regular tea garden, and 3-year regular tea garden were bigger than that of the 8-year regu- lar tea garden. The influencing factors changed in different tree age and management styles.