土壤中铜锌锰钴活性的研究

Study on the Activities of Cu, Zn, Mn, Co in Soils

土壤中元素有效态含量与全量的比值,即为该元素在该土壤上的活性。文章对我国21个土类中Cu、zn、Mn、Co的活性进行了研究。结果表明,元素的活性呈明显的区域性分布。我国西部的灰钙土、栗钙土、黄绵土、垆土及褐土中元素的活性最小,东北各类土壤次之,南方土壤中元素的活性最高。文章对影响土壤中元素活性的因素如元素有效态含量、土壤pH、土壤质地、土壤有机质含量等进行了分析讨论。

The ratio of the available content to the total content of a element in soils is the activity of the element in soils. The activities of Cu, Zn, Mn, Co in 21 types of soils were studied.The results showed that the activities of these four elements were regularly distributed among different regions. The activities of Cu, Zn, Mn, Co were the lowest in sierozem, chestnuts, cultivated Ioessal soil and drab soil in the West of our country, following the middle in the various types of soils in the Northeast, and the highest in the Southern soils. The factors affecting the activities were studied,including the available contents of elements, the soil pH,the soil texture and the organic contents.