亚热带人工林下植被根际土壤酶化学计量特征

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高雨秋^1,²,戴晓琴^1,^2,^3,^*(

),王建雷¹,付晓莉^1,^2,³,寇亮^1,^2,³,王辉民^1,^2,^3,⁴

Characteristics of soil enzymes stoichiometry in rhizosphere of understory vegetation in subtropical forest plantations

GAO Yu-Qiu^1,²,DAI Xiao-Qin^1,^2,^3,^*(

),WANG Jian-Lei¹,FU Xiao-Li^1,^2,³,KOU Liang^1,^2,³,WANG Hui-Min^1,^2,^3,⁴

图1. 不同林分类型亚热带人工林林下植被根际土壤酶活性(平均值+标准误差, n = 5)。CL, 杉木林; PM, 马尾松林; PE, 湿地松林。LC, 檵木; AM, 杨桐; EM, 格药柃; WJ, 狗脊蕨; DA, 暗鳞鳞毛蕨。不同小写字母代表根际土壤C、N或P循环相关的酶活性在同一取样季节相同林分类型下不同林下植被之间差异显著(p ＜ 0.05), 不同大写字母代表根际土壤C、N或P循环相关的酶活性在同一取样季节不同林分类型下差异显著(p ＜ 0.05)。BG, β-1,4-葡萄糖苷酶; NAG+LAP, β-1,4-N-乙酰葡糖氨糖苷酶和亮氨酸氨基肽酶之和; AP, 酸性磷酸酶。

Fig. 1. Rhizosphere soil enzyme activities of understory vegetation under different forest stand types in subtropical plantations (mean + SE, n = 5). CL, Cunninghamia lanceolata forest; PM, Pinus massoniana forest; PE, Pinus elliottii forest. LC, Loropetalum chinense; AM, Adinandra millettii; EM, Eurya muricata; WJ, Woodwardia japonica; DA, Dryopteris atrata. Different lowercase letters were significantly different among different understory vegetation species of the same forest stand types at the same sampling season (p ＜ 0.05), Different uppercase letters were significantly different among different stand types at the same sampling season (p ＜ 0.05). BG, β-1,4-glucosidase; NAG+LAP, the sum of β-1,4-N-acetylglucosaminidase and leucine aminopeptidase; AP, acid phosphatase.