荒漠草地沙漠化对土壤-微生物-胞外酶化学计量特征的影响
吴秀芝1,阎欣1,王波2,刘任涛1,安慧1,*(
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Effects of desertification on the C:N:P stoichiometry of soil, microbes, and extracellular enzymes in a desert grassland
WU Xiu-Zhi1,YAN Xin1,WANG Bo2,LIU Ren-Tao1,AN Hui1,*()
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图2. 土壤微生物生物量及土壤胞外酶C:N:P生态化学计量特征(平均值±标准偏差)。FD, 固定沙地; G, 荒漠草地; MD, 流动沙地; SFD, 半固定沙地。AP, 磷酸酶; BG, β-葡萄糖苷酶; NAG, N-乙酰氨基葡萄糖苷酶。不同小写字母表示阶段的差异显著(p < 0.05)。
Fig. 2. C:N:P ecological stoichiometry of soil microbial biomass and soil extracellular enzymes (mean ± SD) at different stages of desertification. FD, fixed dunes; G, grasslands; MD, mobile dunes SFD, semi-fixed dunes. AP, alkaline phosphatase; BG, β-1,4-glucosidase; NAG, β-1,4-N-acetylglucosaminidase. Different lowercase letters indicate significance differences among stages (p < 0.05).
