科尔沁差巴嘎蒿群落土壤有机碳含量及其与土壤养分关系的研究  

The Relationship of Soil Organic Carbon and Soil Nutrient Content of Artemisia halodendron Community in Daqinggou of Horqin

作　　者：李凯锋[1] 王树森[1] 罗于洋[1] 张海龙[2] 刘玉喜 宋经纬[4] 

机构地区：[1]内蒙古农业大学生态环境学院,呼和浩特010019 [2]内蒙古自治区地质调查院,呼和浩特010018 [3]山东省寿光市生态林场管理委员会,山东寿光262700 [4]国家林业局林产工业规划设计院,北京100010

出　　处：《林业资源管理》2013年第2期71-76,共6页Forest Resources Management

基　　金：国家自然科学基金(30860034)

摘　　要：以科尔沁大青沟差巴嘎蒿群落的土壤为研究对象,采用挖掘法对土壤做剖面,研究了不同深度下土壤有机碳含量与土壤养分(氮、磷、钾)的分布及其相互关系。结果表明:1)在土壤深度0～60cm内,随土壤深度的增加,土壤有机碳含量整体呈下降趋势,其变化范围18.31～5.18g/kg,在0～5cm内,达到最大值为18.31g/kg;2)对土壤养分分析得知,速效钾平均含量为101.29g/kg,有效磷平均含量为2.89g/kg,碱解氮平均含量为18.77g/kg,全钾平均含量(33.60g/kg)比全磷平均含量(0.09g/kg)、全氮平均含量(0.69g/kg)都大;3)通过相关分析可知,土壤有机碳含量与速效钾含量存在极显著的相关性,土壤有机碳含量与全效钾含量不相关。Through the research of the soil profile,the study on distribution and relationships of soil organic carbon and soil nutrient （Nitrogen, Phosphorus, Potassium）under different depth in the Artemisia haloden- dron community in Daqinggou of Horqin was conducted. The results were as follows ： 1 ） in 0 - 60 cm depth soil,the soil organic content decreases with depth,which changes in scope of 18. 31 -5. 18g/kg,the maxi- mum of them is 18.31g/kg in 0- 5cm depth soil;2） Through soil nutrient analysis, average content of available potassium, available phosphorus and available nitrogen were 101.29g/kg,2. 89g/kg, and 18. 77 g/kgrespectively. Total content of potassium, phosphorus and nitrogen were 33.60g/kg, 0. 09g./kg and 0. 69g,/kg; 3） The correlation analysis shows that soil organic carbon and available potassium content have a significant correlation but no correlation with soil organic and the total potassium.

关 键 词：差巴嘎蒿 土壤有机碳 土壤养分 大青沟 

分 类 号：S714.5[农业科学—林学]