珲春市苹果梨果品基地土壤常量、微量元素地球化学特征研究

目的]探明珲春市苹果梨基地土壤元素的地球化学特征。方法]从吉林珲春市苹果梨果品基地采集32个表层土样,分析了样品中7种常量元素和10种微量元素的土壤地球化学特征。结果]土壤常量元素MgO(K=0.470)、CaO(K=0.300)含量平均值低于全国土壤平均值,Fe2O3(K=1.000)、K2O(K=1.040)、Al2O3(K=1.060)、SiO2(K=1.070)含量平均值与全国平均值基本相当,Na2O(K=1.140)含量平均值高于全国平均值。土壤微量元素Cr(K=0.894)和Co(K=0.904)与全国土壤平均值基本相当;As(K=0.341)、Hg(K=0.550)、Cu(K=0.659)、Ni(K=0.677)、Se(K=0.702)、Cd(K=0.774)和Zn(K=0.812)含量低于全国土壤平均值;只有Pb(K=1.029)的平均含量高于全国土壤平均值。结论]该研究为延边地区主要苹果梨种植区合理施肥,提高苹果梨的产量和品质提供科学依据。

Study on Geochemistry Characteristic of Major Element and Trace Element in the Soils of Hunchun Apple-pear Base

Objective] The study aimed to prove up the geochemistry Characteristic of the soils in the Hunchun apple-pear base.Method] The geochemistry characteristics of 7 major elements and 10 trace elements were analyzed from 32 soil surface samples in the Hunchun apple-pear base.Result] The determination on the major elements indicated that the average contents of MgO(K=0.470) and CaO(K=0.300) in the surface soil were lower than the national average content,that of Fe2O3(K=1.000),K2O(K=1.040),Al2O3(K=1.060)and SiO2(K=1.070)were similar to the national average content and that of Na2O(K=1.140)was higher than the national average content.The determination on the trace elements indicated that the average contents of Cr(K=0.894)and Co(K=0.904)in the surface soil were similar to the national average content,that of As(K=0.341),Hg(K=0.550),Cu(K=0.659),Ni(K=0.677),Se(K=0.702),Cd(K=0.774)and Zn(K=0.812)was lower than the national average content and only that of Pb(K=1.029)was higher than the national average content.Conclusion] This study provided the scientific base for rationally applying fertilizer and increasing the yield and quality of apple-pear in main planting area in Yanbian region.