四川茶园土壤中的微量元素

TRACE ELEMENTS IN THE SOIL OF SICHUAN TEA PLANTATIONS

在四川茶园土壤中,Al、Fe元素丰度值最大(4000～70000mg/kg^(-1)),Ti、Mg、Ca次之(400～20000mg/kg^(-1)),全Cu含量最低,仅0.15～90mg/kg^(-1)。灰岩黄壤、砂岩黄壤和酸性紫色土中,有效锌与全锌、有效铜与全铜,呈极显著正相关。

The abundance of trace elements in the soil was investigated at several tea plantations in Sichuan province. Al and Fe were shown to be most abundant, their content in the soils investigated ranging from 4000 to 70 000mg/kg^(-1). Ti, Mg and Ca concentration in the soils varied from 400 to 20 000mg/kg^(-1). Total Cu appeared low, ranging from 0.15 to 90mg/kg^(-1). In calcareous yellow earth, sandy yellow earth and acid purple soil, a highly significant positive correlation was observed between available Zn and total Zn and between available Cu and total Cu.