凋落物输入改变对亚热带两种米槠次生林土壤酶活性的影响

魏翠翠,刘小飞,林成芳,李先锋,李艳,郑裕雄

Response of soil enzyme activities to litter input changes in two secondary Castanopsis carlessii forests in subtropical China

Cui-Cui WEI,Xiao-Fei LIU,Cheng-Fang LIN,Xian-Feng LI,Yan LI,Yu-Xiong ZHENG

表4 土壤酶活性与土壤理化性质和微生物生物量碳、微生物生物量氮的相关关系

Table 4 Correlation between soil enzyme activity and soil physical, chemical properties, microbial biomass carbon, microbial biomass nitrogen

项目 Item 酸性磷酸酶 Acid phosphatase β-葡萄糖苷酶 β-1,4-glucosidase 纤维素水解酶 Cellobiohydrolase β-N-乙酰氨基葡萄糖苷酶 β-1,4-N-acetylglucosam- inidase 酚氧化酶 Phenol oxidase 过氧化酶 Peroxidase 含水量 Moisture content (%) 0.545* 0.327 0.344 0.504* 0.221 -0.230 全碳 Total carbon 0.638** 0.312 -0.003 0.751** 0.119 -0.164 全氮 Total nitrogen 0.830** 0.499* 0.248 0.807** 0.245 -0.109 可溶性有机碳 Dissolved organic carbon 0.274 0.225 -0.175 0.195 -0.391 -0.624** 可溶性有机氮 Dissolved organic nitrogen 0.060 -0.140 -0.534* -0.139 -0.205 0.105 NH4+ 0.362 0.296 0.527* 0.411 0.035 -0.279 微生物生物量碳 Microbial biomass carbon 0.523* 0.488* 0.531* 0.524* 0.252 -0.163 微生物生物量碳 Microbial biomass nitrogen 0.648** 0.498* -0.118 0.231 -0.150 -0.608**