亚热带常绿阔叶林土壤胞外酶活性对碳输入变化及增温的响应

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刘珊杉¹^,²^,⁵, 周文君¹^,²^,⁵^,^*(

), 况露辉³^,⁵, 刘占锋³^,⁵, 宋清海¹^,²^,⁵, 刘运通¹^,²^,⁵, 张一平¹^,²^,⁵, 鲁志云¹^,⁴, 沙丽清¹^,²^,⁵^,^*(

)

Responses of soil extracellular enzyme activities to carbon input alteration and warming in a subtropical evergreen broad-leaved forest

LIU Shan-Shan¹^,²^,⁵, ZHOU Wen-Jun¹^,²^,⁵^,^*(

), KUANG Lu-Hui³^,⁵, LIU Zhan-Feng³^,⁵, SONG Qing-Hai¹^,²^,⁵, LIU Yun- Tong¹^,²^,⁵, ZHANG Yi-Ping¹^,²^,⁵, LU Zhi-Yun¹^,⁴, SHA Li-Qing¹^,²^,⁵^,^*(

)

图2. 亚热带常绿阔叶林不同处理和深度土壤酶的化学计量比(平均值+标准偏差, n = 5)。
CK, 对照处理; LR, 去除地表凋落物处理; TR, 切根处理; TR+W, 切根+增温处理。不同小写字母表示相同深度不同处理间差异显著(p < 0.05), 不同大写字母表示相同处理不同深度土壤之间差异显著(p < 0.05)。AP, 酸性磷酸酶; BG, β-葡萄糖苷酶; NAG, β-1,4-N-乙酰氨基葡萄糖苷酶。

Fig. 2. Stoichiometric ratios of soil enzymes at different treatments and depths in the subtropical evergreen broad-leaved forest (mean + SD, n = 5).
CK, control; LR, litter removal; TR, root removal; TR+W, root removal + warming. Different lowercase letters indicate significant differences among different treatments at the same soil depth (p < 0.05). Different uppercase letters indicate significant differences among different soil depths in the same treatment (p < 0.05). AP, acid phosphatase; BG, β-glucosidase; NAG, β-1,4-N-acetylglucosaminidase.