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亚热带不同树种凋落叶分解对氮添加的响应
陈思路1,2,蔡劲松4,林成芳1,2,3,*(),宋豪威1,2,杨玉盛1,2,3
Response of leaf litter decomposition of different tree species to nitrogen addition in a subtropical forest
CHEN Si-Lu1,2,CAI Jin-Song4,LIN Cheng-Fang1,2,3,*(),SONG Hao-Wei1,2,YANG Yu-Sheng1,2,3

图5. 亚热带森林不同处理凋落叶分解过程中平均酶活性(平均值±标准偏差, n = 3)。A, 米槠凋落叶; B, 杉木凋落叶; C, 观光木凋落叶; D, 台湾相思凋落叶。CT, 对照; +N, 氮添加。AP, 酸性磷酸酶; βG, β-葡萄糖苷酶; CBH, 纤维素水解酶; NAG, β-N-乙酰氨基葡萄糖苷酶; PEO, 过氧化物酶; PHO, 酚氧化酶。不同小写字母表示同一种酶活性在对照和N添加处理之间差异显著(p < 0.05)。

Fig. 5. Litter enzyme activities under different treatments during decomposition in a subtropical forest (mean ± SD, n = 3). A, Castanopsis carlesii litter; B, Cunninghamia lanceolata litter; C, Michelia odora litter; D, Acacia confusa litter. CT, control; +N, nitrogen addition. AP, acid phosphatase; βG, β-1,4-glucosidase; CBH, cellobiohydrolase; NAG, β-1,4-N-acetylglucosaminidase; PEO, peroxidase; PHO, phenol oxidase. Different lowercase letters indicate significant differences among control and nitrogen addition treatments in the same enzyme (p < 0.05).