森林凋落物分解过程中酶活性研究进展

凋落物的分解是生态系统养分循环的重要过程.森林凋落物和土壤中的酶在森林凋落物分解过程中起着重要的作用.本文对森林凋落物分解过程中酶活性的测定方法及影响因素进行了综述,结论为:提取技术的不断提高使得对森林凋落物分解过程中的酶进行定量测定及精确测定其活性成为可能;森林凋落物分解过程中的酶活性受生物因素、非生物因素及凋落物自身化学组成的影响;微生物群落是影响酶活性的主要生物因素,土壤有机质、温度和湿度等是影响酶活性的重要非生物因素;对凋落物分解与酶系统相互作用机制的研究将成为凋落物分解过程中酶活性研究的一个发展趋势.

Advances of Enzyme Activities in the Process of Litter Decomposition

Litter decomposition is a crucial process in the cycling of ecosystem elements. Enzymes of forest litter and soil play an important role in the process of litter decomposition. This paper summarized the method of determining enzyme activities and influencing factors in the process of litter decomposition. Some important results in the studies included: Developed extractive technique can quantify enzyme content and precisely determine it's activities; Enzyme activity influenced by biotic and abiotic factors and also influenced by it's chemical structure; Microorganism community is a crucial biotic factor, SOM(soil organic material), temperature and moisture are all important abiotic factors that could affect enzyme activity; In the future, studies will be concentrated on interactional mechanism between litter decomposition and enzyme system in the process of litter decomposition.