摘要
对典型草原和荒漠草原的土壤有机碳(OC)和全氮(N)进行的比较分析结果表明:两种草原土壤SOC和TN含量差异显著,且典型草原的SOC和TN含量高于荒漠草原;在0～20cm土层内,两种草原的SOC和TN含量随土壤深度的增加呈下降趋势.典型草原的气候、植被及土壤质地状况优于荒漠草原,可能是导致上述结果的可能原因.
Soil organic carbon（SOC） and total nitrogen content（TN） in the typical steppe and desert steppe were compared. The results are as follows： SOC and TN content in the two steppe have obvious difference , moreover, SOC and TN content in the typical steppe are higher than that in desert steppe;In the layer of 0-20 cm, SOC and TN content in both steppe all has a tend to degrade as the soil get deep. This results have close relationship with the climate, vegetation as well as soil conditions and other nature conditions.
出处
《中国草地》
CSCD
2005年第6期44-48,63,共6页
Grassland of China
基金
教育部"青年教师教学科研奖励计划"和骨干教师项目
国家自然科学基金项目(30060056
30360022)
内蒙古科技攻关项目
关键词
典型草原
荒漠草原
土壤有机碳
全氮
Typical steppe
Desert steppe
Soil organic carbon
Total nitrogen
