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3. 亚热带人工林土壤C、N、P获得酶活性关系的标准主轴回归分析(n = 150)。颜色代表林分: 红色, 杉木林; 绿色, 马尾松林; 蓝色, 湿地松林。空心和实心符号分别表示取样时间为4月或7月。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。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. 3. Standardized major axis regressions of the log-transformed soil C-, N-, and P-acquiring enzyme activities in subtropical plantations (n = 150). The colors represent the forest stand types: red symbols, Cunninghamia lanceolata forest; green symbols, Pinus massoniana forest; blue symbols, Pinus elliottii forest. Filled symbols and open symbols respectively represent the sampling seasons at April and July.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. BG, β-1,4-glucosidase; NAG+LAP, the sum of β-1,4-N-acetylglucosaminidase and leucine aminopeptidase; AP, acid phosphatase.