Characteristics of Nutrient Distribution and Historical Evolution on Typical Loessial Soil Profile
Characteristics of Nutrient Distribution and Historical Evolution on Typical Loessial Soil Profile
复制标题
DOI：
--
复制
发表时间：
2010
影响因子：
3.9
通讯作者：
Jun-xia Yan
中科院分区：
文献类型：
--
作者：
Jun-xia Yan
The study based on historical data and soil sample of typical loessial soil profile in different years.In order to know the characteristics of nutrient distribution and historical evolution on typical loessial soil profile,soil nutrients condition and its temporal variation for recent 30 years were studied through the situ sampling method and the sane determination method as historical period.The result showed that the content of nitrogen and phosphorus has been improved for recent 30 a.The nutrient accumulation of soil organic matter(OM),total nitrogen(TN),available nitrogen(AN),total phosphorus(TP) and available phosphorus(AP) increased significantly in topsoil.The content respectively increased 2.18,0.12,3.53,0.32,5.18 mg/kg.There is a decreasing tendency in potassium content.The ration of soil nutrients content is greater of topsoil in 2008.It seemed that the fertility of loessial soil is propitious to absorption for plants.
