Characteristics of different aged plantations of Ormosia hosiei with regards to soil microbial biomass and enzymatic activities

作     者：Xiaolong Zhao Peilin Xie Xueqian Zhang Zeyu Ou Haoxuan Ma Chun Suo Jingqi Ma Pan Wan Xiaolong Zhao;Peilin Xie;Xueqian Zhang;Zeyu Ou;Haoxuan Ma;Chun Suo;Jingqi Ma;Pan Wan;Yu Lei

作者机构：College of ForestryNorthwest A&F UniversityYangling 712100People’s Republic of China 

出 版 物：《Journal of Forestry Research》 (林业研究（英文版）)

年 卷 期：2024年第35卷第6期

页      面：121-134页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

基　　金：supported with the financial support of the National Natural Science Foundation of China(32001311) the Fundamental Research Funds for the Central Universities(2452021017) 

主　　题：Plantation age Soil properties Microbial metabolism Soil health Environmental impact 

摘      要：Stand age is an important indicator of tree growth and life cycle,and has implications for ecological and biological *** study examined changes in soil microbial biomass(SMB)as well as enzyme activities of different aged plantations and revealed their relationship to soil ***,microbial biomass carbon(MBC),microbial biomass nitrogen(MBN),microbial biomass phos-phorous(MBP)and enzyme activities(β-1,4-glucosidase(β-G),β-1,4-xylosidase(β-X),cellobiohydrolase(CBH),leucine aminopeptidase(LAP),β-1,4-n-acetylglucosamine(NAG)and acid phosphatase(ACP))were measured in Oro-mosia hosiei plantations of different *** soil qual-ity index(SQI)model assessed soil *** contents significantly decreased in young(7-year-old)and mature plantations(45-year-old)compared to middle-aged(20-year-old)*** of soilβ-G,β-X,CBH and NAG in the 20-year-old plantations was markedly higher than in the other plantations except forβ-G,CBH and NAG in the 45-year-old *** organic carbon(SOC),total potassium(TK),total porosity,dissolved organic carbon,nitrate nitrogen(NO_(3)--N)and non-capillary porosity were key factors affecting SMB,while soil bulk density,pH,SOC,NO_(3)--N,TK and forest litter(FL)were the main factors affecting soil enzyme *** decreased in the order:middle-agedmature*** efficiency of soil organic matter conversion,the effect of nitrogen min-eralization and fixation by microorganisms,and the better efficiency of phosphorus utilization in mid-age plantations,which improves soil physical properties,better facilitates tree growth,and further improves the buffering of the soil against acidity and *** quality was the only soil biological factor affecting soil enzyme *** findings demonstrate that different aged plantations affect soil micro-bial biomass,enzyme activity,and soil quality.