高山栎天然林土壤酶活性与土壤理化性质和微生物数量的关系  

Relationships between the Soil Enzyme Activity,Physical Chemical Properties and Microorganism Quantity in Quercus aquifolioides Forest

作　　者：赵维娜[1] 王艳霞[1] 陈奇伯[1] 

机构地区：[1]西南林业大学,昆明650224

出　　处：《东北林业大学学报》2015年第9期72-77,共6页Journal of Northeast Forestry University

基　　金：林业公益性行业科研专项(201204101-10);云南省高校优势特色重点学科(生态学)建设项目资助(05000511311)

摘　　要：以云南省玉溪市磨盘山国家森林公园内的高山栎天然林土壤为研究对象,运用通径分析方法,对土壤酶活性与土壤理化因子、微生物数量之间的关系进行了分析。结果表明:土壤脲酶、过氧化氢酶、转化酶活性都是随着土壤深度的加深而逐渐减小;土壤脲酶、过氧化氢酶、转化酶活性均与土壤理化性质、微生物数量之间有着密切的相关关系;影响脲酶和过氧化氢酶活性程度最大的是有机质;影响转化酶活性最重要的因子是土壤有机质、速效钾和碱解氮。With Quercus aquifolioides forest soil in the Mill Mountain National Forest Park in Yuxi City, Yunnan Province, by path analysis, we studied the relationships between the soil enzyme activity, physical chemical properties and microorgan-ism quantity. The soil urease, catalase, and invertase activities were gradually decreased with the increasing of soil depth. There were close relationships between soil urease, catalase, invertase activity, soil physical-chemical properties, and mi- crobial quantity. Urease and catalase activity were largely affected by the organic matter. The most important influencing factors on invertase activities were organic matter, available K and alkali-hydrolyzale N.

关 键 词：高山栎天然林 土壤酶活性 土壤理化性质 土壤微生物数量 通径分析 

分 类 号：S792.18[农业科学—林木遗传育种] Q948.113[农业科学—林学]