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陕西土壤脲酶活性与土壤肥力关系分析
引用本文:和文祥,朱铭莪.陕西土壤脲酶活性与土壤肥力关系分析[J].土壤学报,1997,34(4):392-398.
作者姓名:和文祥  朱铭莪
作者单位:西北农业大学农化系
基金项目:* 国家教委博士点基金
摘    要:根据陕西7种主要土壤19个土样的脲酶活必及理化性质的测定结果,经相关、通径和主成分分析表明:土壤脲酶活性可明显反映出土壤肥力水平差异,脲酶活性大小受到土壤理化性质直接和间接的影响。用主成分组成的土壤肥力信息系统分析统计和用土壤的脲酶活性及理化性质分别评价土壤肥力得到的结果相似。

关 键 词:土壤脲酶  土壤肥力  通径分析  主成分分析  陕西
收稿时间:1994/9/22 0:00:00
修稿时间:1997/4/22 0:00:00

RELATIONSHIP BETWEEN UREASE ACTIVITY AND FERTILITY OF SOILS IN SHAANXI PROVINCE
He Wenxiang and Zhu Ming''e.RELATIONSHIP BETWEEN UREASE ACTIVITY AND FERTILITY OF SOILS IN SHAANXI PROVINCE[J].Acta Pedologica Sinica,1997,34(4):392-398.
Authors:He Wenxiang and Zhu Ming'e
Abstract:The urease activities and physico-chemical properties of nineteen samples collected from seven main soils in Shaanxi Province were analyzed. The results obtained by the correlation, path and principal component analyses showed that the soil urease activities varied significantly with the soil fertility level and soil physical and chemical properties had both direct and indirect influences on the urease activity. Similar evaluation results of soil fertility were got by using an information system of soil ertility consisting of principal component and by the urease activities and the physical and chemical properties respectively.
Keywords:Soil urease  Soil fertility  Path analysis  Principal component analysis
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