西南林业大学学报2018，Vol.38Issue(3)：108-115,8.DOI:10.11929/j.issn.2095-1914.2018.03.016
广东罗浮山土壤有机碳储量与组分垂直分布特征
The Vertical Distribution Characteristics of Soil Organic Carbon Stocks and Fractions in Luofu Mountain of Guangdong
摘要
Abstract
Dividing 10 typical soil sampling points at different elevations in Luofu Mountain,Guangdong,and collecting soil samples of 0-20 cm,20-40 cm,40-60 cm,and 60-80 cm soil layers.Chemical analysis methods were used to analyze soil organic carbon(SOC) content,soil active organic carbon(POXC) content,soil organic carbon content,and basic physical and chemical indicators.The vertical distribution rules of organic carbon storage and com-position in different soil profiles at different altitudes in Luofu Mountain were studied. The results indicated that SOC and POXC of Luofu Mountain mainly accumulated in 0-40 cm depth,and SOC content and stock in the soil surface horizon (0-20 cm) significantly positively correlated with altitude.With the increase of altitude,the SOC content and stock,POXC content and the content of soil organic carbon all showed an increasing trend. With the increase of soil depth,the SOC content and stock,POXC content,CF1and CF2 contents showed a decreasing trend,while the con-tents of CF3 and CF4 decreased.The content of POXC,content of organic carbon in soil and SOC content were all sig-nificantly correlated. Increasing SOC accumulation was the main way to increase the content of SOC fractionss.关键词
土壤/有机碳组分/活性有机碳/垂直分布/罗浮山Key words
soil/organic carbon fractions/active organic carbon/vertical distribution/Luofu Mountain分类
农业科技引用本文复制引用
秦海龙,贾重建,卢瑛,郭彦彪,姜坤,李先霞,杨奇青,温志滔..广东罗浮山土壤有机碳储量与组分垂直分布特征[J].西南林业大学学报,2018,38(3):108-115,8.基金项目
国家自然科学基金项目(41271233)资助 （41271233）
国家科技基础性工作专项项目(2008FY110600,2014FY110200)资助. （2008FY110600,2014FY110200）
