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对旱农区同一坡度不同层位梯田的土壤碱性磷酸酶活性变化及其相关因素进行了分析 ,结果表明 ,从梯田顶部到基部 ,其土壤中有机质、水解氮、有效磷、碱性磷酸酶活性和呼吸强度都存在着一定的空间差异 ,从上到下依次为 :呼吸强度 >有机质 >水解氮 >碱性磷酸酶活性 >有效磷 ,且有机质、水解氮、碱性磷酸酶活性及呼吸强度由坡顶到坡底均逐渐增加 ,有效磷增加不明显 ;碱性磷酸酶活性与水解氮、有效磷间的相关性达到极显著水平
The changes of soil alkaline phosphatase activity and its related factors in different terraces of the same slope in the arid area were analyzed. The results showed that the contents of soil organic matter, hydrolyzed nitrogen, available phosphorus, alkaline phosphatase Respiration, organic matter, hydrolyzed nitrogen, alkaline phosphatase activity, available phosphorus, and organic matter, hydrolyzed nitrogen, alkaline phosphatase activity and respiratory intensity From the top of the slope to the bottom of the slope all increased gradually, the available phosphorus increased insignificantly; the correlation between alkaline phosphatase activity and hydrolyzed nitrogen and available phosphorus reached the extremely significant level