不同演替阶段森林土壤酶动态研究进展

Research Progress of Forest Soil Enzyme Dynamics in Different Succession Stages

土壤酶作为森林生态系统的重要组成部分之一,主要来自于微生物,森林土壤酶活性是评价土壤质量和土壤生物群落的指标,而酶活性作为反映土壤生态系统功能的敏感指标,会随着土壤养分状况的改变而迅速发生变化。同时土壤酶的活性具有巨大潜力,可以对土壤进行独特的综合生物学评估以及评价土壤生物的健康状况,但目前对于不同演替阶段的土壤酶动态的研究相对较少。主要对不同演替阶段进行了研究,讨论了演替前期、演替中期以及演替后期相关土壤酶,例如β-葡萄糖苷酶(β-glucosidase, BG)、纤维素酶(Cellulase, CBH)、N-乙酰-β-氨基葡萄糖苷酶(β-N-acetyl-glucosaminidase, NAG)、亮氨酸氨基肽酶(Leucine amino peptidase, LAP)、酸性磷酸酶(Acid phosphatase, AP)、碱性磷酸酶(Alkaline phosphatase, ALP)等酶活性的变化,探究其变化的原因,以期为北方森林不同演替阶段土壤酶的研究提供支持。

Soil enzymes are considered to be one of the important components of forest ecosystem, mainly from microorganisms. Forest soil enzyme activity is used as an index to evaluate soil quality and soil biological community. The enzyme activity is used as a sensitive indicator reflecting the function of the soil ecosystem, and it will change rapidly as the soil nutrient status changes. At the same time, the activity of soil enzymes has great potential, which can carry out unique comprehensive biological assessment of soil and evaluate the health of soil organisms. However, there are relatively few studies on soil enzyme dynamics at different successional stages. This paper mainly studies the different succession stages, discusses the related soil enzymes in the early, middle and late succession, for example, the changes of β-glucosidase (BG), cellulase (CBH), N-acetyl-β-glucosidase (NAG), leucine aminopeptidase (LAP), acid phosphatase (AP), alkaline phosphatase (ALP), etc. to explore the reasons for the changes in order to provide support for the study of soil enzymes in different successional stages of northern forests.