中国草地学报2025，Vol.47Issue(6)：34-45,12.DOI:10.16742/j.zgcdxb.20240363
施肥对天然割草地植物群落、土壤养分及微生物的影响
Effects of Fertilization on Plant Communities,Soil Nutrients,and Microorganisms in Natural Mowing Grassland
摘要
Abstract
This study investigated the effects of various fertilization treatments on natural mowing grass-land in the Altay Mountains,combining field investigations with indoor laboratory analyses.The experi-ment included four fertilization measures:no fertilization(control),compound fertilizer,organic fertilizer and bio-bacterial fertilizer.The primary objective was to assess these treatments on grassland plant commu-nity characteristics,soil nutrients,and soil microorganisms.The results showed as follows:(1)Com-pound fertilizer application significantly increased aboveground biomass(P<0.05),but decreased under-ground biomass in the 0～10 cm soil layer.Bio-bacterial and organic fertilizers increased species diversity,while compound fertilizer reduced it.Notably,the Shannon-Wiener index was significantly higher under bio-bacterial fertilizer than under compound fertilizer(P<0.05);(2)Fertilization significantly lowered soil pH and increased soil organic matter content.Organic fertilizer significantly increased available nitrogen content(P<0.05),while compound fertilizer significantly raised available phosphorus and available potas-sium concentrations(P<0.05);(3)Fertilization significantly increased the number of bacterial opera-tional taxonomic units(OTUs)and decreased fungal OTUs(P<0.05),indicating shifts in microbial com-munity structure and enhanced microbial diversity.A comprehensive evaluation using a membership func-tion approach indicated that compound fertilizer had the most substantial effect in improving degraded natu-ral meadows.These findings provide a scientific basis for enhancing the productivity and soil fertility of natural meadows through appropriate fertilization strategies.关键词
施肥/天然割草地/植被/土壤养分/土壤微生物Key words
Fertilization/Natural mowing grassland/Vegetation/Soil nutrients/Soil microorganisms分类
农业科技引用本文复制引用
熊辉,张鲜花,撒成辉,闫佳乐,张盼盼,韩禧卿,袁惠..施肥对天然割草地植物群落、土壤养分及微生物的影响[J].中国草地学报,2025,47(6):34-45,12.基金项目
2024年自治区林业发展补助资金项目(XJLYKJ-2024-21) （XJLYKJ-2024-21）
新疆维吾尔自治区高校科研计划项目(XJEDU2021I013) （XJEDU2021I013）
