贵州农业科学2025，Vol.53Issue(7)：57-67,11.DOI:10.3969/j.issn.1001-3601.2025.07.007
草坪生态系统植物根系生物量与土壤微生物量及其相关性
Correlation Between Plant Root Biomass and Soil Microbial Biomass in Lawn Ecosystem
摘要
Abstract
[Objective]The plant root biomass and soil microbial biomass were investigated in lawn ecosystem,and their correlations and key environmental factors influencing plant root biomass and soil microbial biomass were analyzed to provide the theoretical basis and technical guidance for scientific establishment and efficient management of lawns.[Method]The root biomass of Cynodon dactylon,Agrostis stolonifera,Lolium perenne,Buchloe dactyloides,Festuca elata and Trifolium repens and soil microbial biomass under natural state and artificial detaselling conditions were respectively investigated at early,middle and late stages of lawn ecosystem development and succession,and the correlation was analyzed to reveal the key environmental factors influencing the change trend of plant root biomass and soil microbial biomass.[Result]The plant root biomass and soil microbial biomass in B.dactyloides,L.perenne and T.repens lawn ecosystems were obviously higher than those in the other 3 lawn ecosystems.The plant root biomass and soil microbial biomass of six tested lawn ecosystems under the natural state were higher than those under the artificial detaselling condition obviously.There was a linear positive correlation between plant root biomass and soil microbial biomass at early stage of lawn ecosystem development and succession,and there was a unimodal curve correlation between plant root biomass and soil microbial biomass at middle and late stages of lawn ecosystem development and succession.The lawn species,development and succession stage,treatment pattern and their pairwise and total interactions had the significant effects on plant root biomass and soil microbial biomass.[Conclusion]There are significant differences in plant root biomass and soil microbial biomass at different development and succession stages under different lawn ecosystems.The significant difference in the correlation type between plant root biomass and soil microbial biomass reflects the complexity and predictability of spatial-temporal dynamics change trend,which can provide the theoretical basis for scientific establishment and efficient management of different lawn types.关键词
草坪草/草坪生态系统/植物根系生物量/土壤微生物量/养分竞争/建植Key words
turfgrass/lawn ecosystem/plant root biomass/soil microbial biomass/nutrient competition/establish-ment分类
农业科技引用本文复制引用
李茂莹,陈昕,丁健,刘宪斌,马思媛,和银建..草坪生态系统植物根系生物量与土壤微生物量及其相关性[J].贵州农业科学,2025,53(7):57-67,11.基金项目
云南省教育厅大学生创新创业训练计划项目"云南常绿阔叶林土壤微生物量动态变化规律研究"(S202411390079) （S202411390079）
云南省科技厅基础研究计划项目"全球气候变化背景下云南亚热带常绿阔叶林地表植被多样性维持机制研究"(202301BA070001-087) （202301BA070001-087）
