浙江农林大学学报2024，Vol.41Issue(5)：1005-1012,8.DOI:10.11833/j.issn.2095-0756.20230626
毛竹扩张对常绿阔叶林土壤微生物残体碳累积的影响
Effects of Phyllostachys edulis expansion on soil microbial residue carbon accumulation in evergreen broad-leaved forests
摘要
Abstract
[Objective]This study is to reveal the dynamic changes of soil organic carbon(SOC)in evergreen broad-leaved forests during the expansion of Phyllostachys edulis in subtropical regions by affecting the accumulation of soil microbial residue carbon.[Method]Taking amino sugar as the research object,this study investigated the accumulative effect of microbial residue carbon in surface soil(0-10 cm)of evergreen broad-leaved forest,Ph.edulis and broad-leaved mixed forest,and pure Ph.edulis forest in the state-owned forest farm of Lingfengsi in Anji,Zhejiang Province,as well as the correlation characteristics with organic carbon.[Result]During the expansion of Ph.edulis,soil fungal residue carbon,bacterial residue carbon and microbial residue carbon all significantly(P＜0.05)decreased(36.76％,35.13％and 40.32％,respectively),and the annual litter production indirectly affected SOC,fungi biomass,soil bacteria biomass and total microbial biomass,thereby affecting the cumulative effects of soil fungal residue carbon,bacterial residue carbon and total microbial residue carbon,respectively.There was no significant change in the ratio of fungal residue carbon,bacterial residue carbon and total microbial carbon residue to SOC in the early stage of Ph.edulis expansion(from evergreen broad-leaved forest to Ph.edulis and broad-leaved mixed forest),but in the late stage of expansion(from Ph.edulis and broad-leaved mixed forest to Ph.edulis forest),the ratio increased significantly.[Conclusion]The role of microbial carbon on SOC gradually increases during the expansion of Ph.edulis into evergreen broad-leaved forests.[Ch,4 fig.1 tab.26 ref.]关键词
毛竹扩张/土壤有机碳/微生物残体碳/氨基糖Key words
Phyllostachys edulis expansion/soil organic carbon/microbial residue carbon/amino sugar分类
农业科技引用本文复制引用
邵帅,王中乾,潘灵强,郑云游,郑旭理,田立斌,徐秋芳..毛竹扩张对常绿阔叶林土壤微生物残体碳累积的影响[J].浙江农林大学学报,2024,41(5):1005-1012,8.基金项目
浙江省自然科学基金资助项目(LQ24D010002) （LQ24D010002）
国家自然科学基金资助项目(42307383) （42307383）
