商洛药源基地土壤脲酶、磷酸酶和土壤养分的关系研究  

Reseach on Relationship between Soil Urease,Phosphatase and Soil Nutrient in Tradtional Chinese Medicine Base of Shangluo

作　　者：李素俭[1] 李新平[2] 刘瑞丰[2] 张小虎[3] 何军[3] 

机构地区：[1]西北农林科技大学生命科学学院,陕西杨凌712100 [2]西北农林科技大学资源环境学院,陕西杨凌712100 [3]商洛学院,陕西商洛726000

出　　处：《水土保持学报》2010年第6期227-230,共4页Journal of Soil and Water Conservation

摘　　要：运用通径分析的方法研究了商洛4个药源基地8个土壤样品的脲酶活性和磷酸酶活性与土壤养分因子的关系。结果表明:商洛药源基地土壤有机质、全氮和pH值对脲酶活性的直接作用和间接作用都比较大,表现上极显著相关;土壤有机质、全氮和碱解氮对磷酸酶活性有较强的直接作用和间接作用。土壤酶与土壤养分的相关性表明:根据土壤酶活性来评价土壤的肥力状况是可行的。The relationship between soil nutrients and enzymes in eight different of samples of four soils in area of Shangluo were researched in path analysis for data processing.Results show that the soil organic matters content and total N as well as pH has significant effect on the activity of urease on the significant correlation.Soil organic matters and total N as well as alkali-hydro nitrogen has strong direct and indirect effect on the activity of phosphatase.From the correlations of these factors,we can fingure out that the activity of soil enzymes can be used to assess soil fertility condition.

关 键 词：通径系数 酶活性 有机质 全氮 

分 类 号：S154.2[农业科学—土壤学] S158.2[农业科学—农业基础科学]