百花山山地土壤中有机质的垂直分布规律  

ALTITUDINAL DISTRIBUTION OF SOIL ORGANIC MATTER IN SOILS ON BAIHUA MOUNTAINS

作　　者：吕贻忠[1] 张凤荣[1] 孙丹峰[1] 

机构地区：[1]中国农业大学资源与环境学院,北京100094

出　　处：《土壤》2005年第3期277-283,共7页Soils

基　　金：北京市自然科学基金重点项目(6031001);国家自然科学基金课题(49831004)资助

摘　　要：本文测定了北京百花山山地典型土壤剖面各发生层的有机质含量、腐殖酸组分、可见光谱,利用相关分析方法计算了有机质与海拔高度之间的相关系数。结果表明:有机质与海拔高度的相关系数为0.94,,呈显著相关水平;各剖面土壤腐殖质分析结果表明,该山地土壤的HA/FA值、E4/E6值随着海拔高度的升高而呈现上升趋势。Analysis of characteristics of the soils on the Baihua Mountains in the suburbs of Beijing was conducted by determining SOM contents, HA/FA and E4/E6 ratios in soil genetic layers. The results revealed that the SOM, total N and total P were strongly correlated with the altitude. SOM showed a good correlation with the altitude ( r = 0.94). Clay content affected SOM accumulation.

关 键 词：有机质 HA/FA E4/E6 北京山区 

分 类 号：S153.6[农业科学—土壤学]