长沙市不同类型水耕人为土的理化性质研究

以长沙市采集的12个不同土壤类型的水耕人为土剖面为研究对象,分析了剖面间理化性质分布特点及其成因。结果表明:长沙市水耕人为土耕作层的有机质、全氮、全磷和全钾含量均很丰富,其中简育水耕人为土的有机质含量较高,潜育水耕人为土全氮和全磷的含量较高,铁聚水耕人为土全钾的含量较高,都依其成土母质和质地的不同而变化。

Physicochemical Properties of Different Types of Stagnic Anthrosol in Changsha City

Taking 12 typical soil proifles of stagnic anthrosols from Changsha City as materials, the physical and chemical properties of soil, distribution characteristics and the causes were analyzed. The results showed that the contents of soil organic matter, total nitrogen, total phosphorus and total potassium were abundant in plough layer. Compared three groups of soil, organic matter in hapli stagnic anthrosol was the most abundant, total nitrogen and total phosphorus in gleyic stagnic anthrosol were the most abundant, and total potassium in Fe-accumulic stagnic anthosol was abundant, their contents were mainly inlfuenced by artiifcial factor, parent material and texture.