广西林业科学2025，Vol.54Issue(2)：216-221,6.DOI:10.19692/j.issn.1006-1126.20250213
60年生格木人工林土壤有机碳及其活性组分储量与分配特征
Storages and Distribution Characteristics of Soil Organic Carbon and Its Active Components in 60-year-old Erythrophleum fordii Plantation
摘要
Abstract
In order to understand distribution characteristics of contents and storages of soil organic carbon(SOC)and its active components in different soil layers of Erythrophleum fordii plantation,taking 60-year-old E.fordii plantation in southeastern Guangxi as research object,physical and chemical properties,contents and storages of SOC and active components in different soil layers(0-10,10-30,30-50 and 50-100 cm)were mea-sured.Results showed that soil of 60-year-old E.fordii plantation was strongly acidic.With increase of soil layer depth,pH significantly increased,while contents of available phosphorus(AP),total phosphorus(TP),al-kali-hydrolyzable nitrogen(AN),total nitrogen(TN),total potassium(TK),SOC and easily oxidized organic car-bon(EOC)as well as storages of SOC and EOC decreased,with the highest values observed in 0-10 cm soil layer.Soil bulk density,contents of available potassium(AK)and dissolved organic carbon(DOC)as well as DOC storage showed no significant differences among different soil layers.In 0-100 cm soil layers,SOC con-tents were significantly positively correlated with EOC contents.Soil of 60-year-old E.fordii plantation had stronger anti-interference ability,with DOC being less prone to lose,while EOC exhibited better stability.关键词
有机碳储量/活性有机碳/分配特征/格木人工林Key words
organic carbon storage/active organic carbon/distribution characteristic/Erythrophleum fordii分类
农业科技引用本文复制引用
田野,黄莉雅,黄俊才,樊容源,梁晨,林婧,叶绍明,蒋燚..60年生格木人工林土壤有机碳及其活性组分储量与分配特征[J].广西林业科学,2025,54(2):216-221,6.基金项目
广西自筹经费林业科技项目(桂林科研[2022ZC]第26号,2024GXZCLK08) （桂林科研[2022ZC]第26号,2024GXZCLK08）
