关键词: 苹果园, 土壤重金属, 评价, 长武

Abstract: Based on the analysis of soil samples collected from Changwu apple orchard,Shaanxi Province,the soil environmental quality was evaluated by using standards for pollution-free fruit orchard and standards for green food production area.The results indicated that according to the former standards,contaminated degree for soil heavy metals was Ni>As>Cr>Zn>Cu>Pb and the index of synthetic soil heavy metals pollution was 0.489.And according to the latter standard,the contaminated degree of soil heavy metals was Cr>As>Pb>Cu and the synthetic pollution index of soil heavy metals was 0.715.Therefore,the soil environmental quality in this production area should be leveled at no-enough clean.Environmental quality evaluation revealed a potential pollution of the Ni and Cr,Cr,whose content had reached the alarming level by soil environmental quality standards for green food production area,should be the emphasis of monitoring and be paid enough attention to in the future.

Key words: Apple orchard, Apple orchard, Soil heavy metals, Evaluation, Changwu