庐山不同海拔土壤有机质与全氮含量分析及相关性研究

Analysis and correlation of soil organic matter and total nitrogen at different elevations in lushan mountain

为研究不同海拔下土壤中有机质与全氮含量间的关系,本研究选取庐山地区3种土壤进行不同土层的抽样分析。结果表明,土壤中有机质含量与海拔成正相关,随着海拔的升高,有机质含量逐渐增加,有机质含量由小到大分别为山地红壤、山地黄壤、山地棕壤;土壤中全氮含量与有机质含量呈成正相关。深入探究有机质含量与全氮含量之间的关系,有助于掌握庐山土壤的养分状况,为庐山资源的合理开发提供科学依据。

To determine the relationship between soil organic matter(SOM)and total nitrogen content(TN)in soil at different elevations,this study assessed three types of soil in Lushan Mountain for sampling analysis of different soil layers.The results showed that the content of SOM was positively correlated with the altitude.With the elevation increasing,the content of SOM increased gradually. The SOM content increased in the orde:brown soil > yellow soil > red soil.The TN in soil was positively correlated with the SOM content.Deeply exploring the relationship between SOM content and TN content is helpful to grasp the nutrient status of Lushan soil and provide scientific basis for the rational development of Lushan resources.