河南省基于土壤-小麦系统的土壤Cr生态安全评价

Ecological safely evaluation of Cr in soils based on the soil-seed system in Henan,China

利用农业地质地球化学评价方法原理和河南黄淮平原土壤-小麦系统Cr元素的实测数据,获得了不同土壤类型的土壤Cr安全界限值,再用"实用临界值"对安全界限值进行修正,建立了评价标准值,并利用评价标准值对河南省的土地进行了Cr生态安全评价。

Cr safety limits in different soil types were obtained by using the method and principle of ago-geological geochemical evaluation and measured data of Cr in the soil-wheat system in the Henan Huanghuai plain, Henan. Then the ＂practical critical values＂ were used to revise the safely limits and establish the evaluation standard value. Finally, the evaluation standard value was used to conduct the Cr ecological safety evaluation of soils in Henan.