贡嘎山树线过渡带土壤胞外酶活性及其化学计量比特征
李东1,2, 田秋香2, 赵小祥2,3, 林巧玲2,3, 岳朋芸2,3, 姜庆虎2, 刘峰2,*(
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Soil extracellular enzyme activities and their stoichiometric ratio in the alpine treeline ecotones in Gongga Mountain, China
LI Dong1,2, TIAN Qiu-Xiang2, ZHAO Xiao-Xiang2,3, LIN Qiao-Ling2,3, YUE Peng-Yun2,3, JIANG Qing-Hu2, LIU Feng2,*()
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图2. 贡嘎山树线过渡带不同位置土壤水解酶活性的变化(平均值±标准误)。BG, β-葡萄糖苷酶; CBH, 纤维素二糖水解酶; LAP, 亮氨酸氨基肽酶; NAG, N-乙酰氨基葡萄糖苷酶; XYL, 木聚糖水解酶。F1、F2、F3为树线下方的森林样方; S1、S2、S3为灌丛样方; Treeline为树线处样方。不同小写字母表示过渡带不同位置(植被类型)差异显著(p < 0.05)。
Fig. 2. Soil hydrolytic enzyme activities at different locations in the treeline ecotone in Gongga Mountain (mean ± SE). BG, β-1,4-glucosidase; CBH, cellobiohydrolase; LAP, leucine aminopeptidase; NAG, β-N-acetyl glucosaminidase; XYL, xylosidase. F1, F2, F3 are forest samples; S1, S2, S3 are shrub samples; Treeline is the sample at the tree line. Different lowercase letters indicate significant differences (p < 0.05) among different locations or vegetation types in the treeline ecotone.
