清远市针叶林土壤有机碳分布特征  

Study on the Distribution of Soil Organic Carbon in Coniferous Forest in Qingyuan City

作　　者：杨海燕[1] 张亚男 李莹莹 康剑 张志辉 程长福 丁晓纲[1] YANG Haiyan;ZHANG Yanan;LI Yingying;KANG Jian;ZHANG Zhihui;CHENG Changfu;DING Xiaogang(Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization/Guangdong Academy of Forestry,Guangzhou,Guangdong 510520,China;South China Botanical Garden,Chinese Academy of Sciences,Guangzhou,Guangdong 510650,China;Qingyuan Longping Forest Farm,Qingyuan,Guangdong 513400,China)

机构地区：[1]广东省森林培育与保护利用重点实验室/广东省林业科学研究院,广东广州510520 [2]中国科学院华南植物园,广东广州510650 [3]清远市龙坪林场,广东清远513400

出　　处：《林业与环境科学》2022年第5期11-15,共5页Forestry and Environmental Science

基　　金：广东省林业科技计划项目(2021-KYXM-13);广东省省级财政专项资金“林地土壤调查”。

摘　　要：以清远市针叶林土壤为研究对象,采用专题样点与空间随机样点布设相结合,布点134个,测定0~80 cm土层有机碳含量,并用空间插值法分析其含量分布特征。结果显示:清远市针叶林0~20 cm层土壤有机碳含量最高,随土层厚度增加,有机碳含量大致呈递减趋势,表层土壤有机碳含量平均值为13.99 g·kg^(-1);同一土层不同区域有机碳含量存在差异,西北部有机碳含量相对较低,中部和东南部相对较高。Exploring the distribution of soil organic carbon in coniferous forests is of great significance to soil carbon cycle research and scientific management of coniferous forests.This study took coniferous forests as the research object,measured the soil organic carbon content,and used spatial interpolation to analyze its content distribution.The results showed that the organic carbon content in the topsoil of coniferous forest in Qingyuan city was the highest,and the organic carbon content generally decreased with the increase of soil thickness.The organic carbon content in the topsoil was about 13.99 g·kg^(-1).There are differences in content,with relatively low organic carbon content in the northwest and relatively high levels in the center and southeast.

关 键 词：针叶林 土壤 有机碳 清远市 

分 类 号：S714[农业科学—林学]