水土保持学报2011，Vol.25Issue(4)：115-120,6.
酸化梨园土壤酶活性与土壤理化性质之间的关系
Relationship Between Soil Enzymatic Activity and Soil Property in Selected Acidified Pear Orchards
摘要
Abstract
The relationships between soil enzyme activities and soil properties in acidified pear orchards were studied through field investigation and laboratory analysis.The correlation between enzyme activities and soil properties were evaluated by the methods of correlation and path analysis.The results showed that catalase,acid phosphatase and urease were significant differences with the increasement of soil depth in 4.0-4.5,4.5-5.0,5.0-5.5,5.5-6.0 ranges,in addition to invertase in 5.0-5.5 range.Meanwhile,water fraction by volume and NaCl were also.The correlations of the activities of soil enzyme to soil properties were significant or very significant.Soil pH mostly significantly influenced activity of catalase,but the direct effects of pH on invertase,acid phosphatase and urease were to a large extent counteracted by the indirect effects of other factors on them in path analysis.pH,NH4^＋-N,exchangeable Ca and Mg,water fraction by volume and NaCl were the main factors for catalase depending on the direct and their indirect effects.Available P,Zn and temperature in degrees celsius were the main impact factors on invertase.The main factors for acid phosphatase were organic matter,available P,Zn and NaCl.Organic matter,water fraction by volume and NaCl were the main factors for urease.So soil enzyme activities which were affected by pH,temperature in degrees celsius,water fraction by volume,NaCl and soil nutrients,could be used as indicators of soil fertility in acidified pear orchards.关键词
酸化梨园/土壤酶活性/土壤理化性质/通径分析Key words
acidified pear orchards/soil enzymatic activity/soil property/path analysis分类
农业科技引用本文复制引用
赵静,韩甜甜,谢兴斌,董彦,吴曼,梁爱新,沈向..酸化梨园土壤酶活性与土壤理化性质之间的关系[J].水土保持学报,2011,25(4):115-120,6.基金项目
农业部行业科技项目 （）
国家产业科技体系建设专项 （）
