A sequential extraction technique and atomic absorption spectrometry were used in the study to extract and determine the cadmium forms in 35 farmland soil samples in the suburb of Chengdu.

本研究采用连续提取法和原子吸收法对成都市某郊区基本农田的35份土壤样品中各形态镉进行了提取和测定。

Salinity content and characteristic of farmland soil in Shanghai suburb was studied.

研究了上海市郊部分旱作农田土壤盐分特征。

The research aimed to evaluate the environmental quality of heavy metal Zn in the surface soil of the agricultural land in Baotou suburb.

评价包头市郊区农用地表层土壤重金属锌环境质量。