中国地质调查2025，Vol.12Issue(4)：57-67,11.DOI:10.19388/j.zgdzdc.2024.227
太行山南麓不同土地利用类型土壤有机碳分布特征
Distribution characteristics of soil organic carbon in different land use types at the southern foot of Taihang Mountains
摘要
Abstract
Jiyuan section on the southern slope of Taihang Mountains is an area with relatively special topography,landforms and vegetation types in the Yellow River Basin.Estimating and comparing the soil physical properties and organic carbon density of different land use types in this area is of great guiding significance for rational land use and soil carbon pool management.By taking the(0,40]cm surface soil of Platycladus orientalis forest,Rob-inia pseudoacacia forest,Quercus variabilis forest,economic forest,cultivated land and wasteland as the research objects,and through field investigation and sampling and indoor laboratory analysis,the authors compared and an-alyzed the vertical distribution characteristics of soil bulk density,organic carbon content(SOC)and soil organic carbon density(SOCD)of different land use types,and further analyzed the correlation between soil physical properties and organic carbon.The average range of organic carbon content of(0,40]cm surface soil in six land use types is 9.46 × 10-3～15.13 ×10-3,and the average content is the lowest in cultivated land and the highest in wasteland.The average range of soil organic carbon density is between 1.33～2.27 kg/m-2,and the average value is the lowest in economic forest and the highest in wasteland.Both the soil organic carbon content and soil organic carbon density of different land use types and different depths show variation characteristics.The soil or-ganic carbon content and soil organic carbon density decrease with the increase of depth,except cultivated land and economic forest.The soil organic carbon density in the(0,10]cm soil layer is significantly higher than that in other layers of the profile.The soil organic carbon content is positively correlated with soil organic carbon den-sity and negatively correlated with soil water content.Different land use types could affect the input of soil carbon sources,and thus affect soil physical properties,soil organic carbon content and soil organic carbon density.The research results could provide references for soil carbon sink assessment in this area.关键词
土地利用方式/土壤有机碳密度/垂直分布/土壤容重/太行山南麓Key words
land use type/soil organic carbon density/vertical distribution/soil bulk density/the southern foot of Taihang Mountains分类
天文与地球科学引用本文复制引用
庞国涛,刘晓煌,巴音吉,樊志富,李兆贺,王贵恒..太行山南麓不同土地利用类型土壤有机碳分布特征[J].中国地质调查,2025,12(4):57-67,11.基金项目
中国地质调查局"黄河流域中下游(河南段)水沙相互作用及生态环境承载力调查监测与评价(编号:DD20220885)"项目资助. （河南段）
