桉树人工林地土壤酶活性与微量元素含量的关系  

Relationship between soil enzyme activities and trace element contents in Eucalyptus plantation soil

作　　者：李跃林[1] 彭少麟[2] 李志辉[3] 任海[1] 李志安[1] 

机构地区：[1]中国科学院华南植物研究所,广州510650 [2]中国科学院广州分院,广州510070 [3]中南林学院,株洲412006

出　　处：《应用生态学报》2003年第3期345-348,共4页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金重大项目 (3 98993 70 );国家"九五"科技攻关专题 (960 110 10 3 );中国科学院知识创新工程项目 (KZCX2 40 7);中国科学院鹤山开放基金资助项目

摘　　要：运用典范相关分析研究了桉树人工林地土壤酶活性和土壤微量元素含量关系 .结果表明 ,Zn和Mn对土壤蛋白酶活性的促进作用最大 .Zn在一定程度上对脲酶和过氧化氢酶有抑制作用 ;而Mn对脲酶和过氧化氢酶有促进作用 .结合林地生物的生长特征等因子 ,“综合土壤酶因子”可作为土壤肥力评价的一个指标 。Canonical correlation analysis on soil enzyme activities and trace element contents in Eucalyptus plantation soil showed that among the test elements, only Zn and Mn affected enzyme activity. Both Zn and Mn increased soil proteinase activity. Zn decreased the activities of soil urease and peroxidase, while Mn promoted them. 'Integral soil enzyme factor' could be used as an index of soil fertility. Together with other growth factors, this index should be considered when evaluating soil fertility of Eucalyptus forest sites. It also had a definite significance on the division of Eucalyptus soil families.

关 键 词：桉树人工林地 土壤酶 微量元素 典范相关分析 

分 类 号：S714[农业科学—林学]