The impact of landslides on chemical and microbial properties of soil in a temperate secondary forest ecosystem

作     者：Yakun Zhang Chen Miao Jiaojun Zhu Tian Gao Yirong Sun Jinxin Zhang Shuang Xu Kai Yang Yakun Zhang;Chen Miao;Jiaojun Zhu;Tian Gao;Yirong Sun;Jinxin Zhang;Shuang Xu;Kai Yang

作者机构：Qingyuan Forest CERNInstitute of Applied EcologyChinese Academy of SciencesShenyang 110016People’s Republic of China CAS Key Laboratory of Forest Ecology and ManagementInstitute of Applied EcologyChinese Academy of SciencesShenyang 110016People’s Republic of China University of Chinese Academy of SciencesBeijing 100049People’s Republic of China 

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

年 卷 期：2022年第33卷第6期

页      面：1913-1923页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 

基　　金：supported by The National Natural Science Foundation of China(31922059) the Key Research Program of Frontier Sciences,CAS(QYZDJ SSW DQC027 and ZDBS LY DQC019) 

主　　题：Secondary forest Landslide Soil nutrients Microbial biomass Enzyme activity 

摘      要：In forest ecosystems,landslides are one of the most common natural disturbances,altering the physical,chemical and microbial characteristics of soil and thus further altering ecosystem properties and *** secondary forests comprise more than 50%of global forests,the influence of landslides on the soil properties in these forests is ***,this study investigates the influence of landslides on the chemical and microbial nature of the *** of these modifications is critical,as it provides baseline evidence for subsequent forest *** selected four independent landslides and adjacent secondary forest stands as references in a temperate secondary forest in northeastern *** were obtained from each stand at 0–10 cm and 10–20 cm depths to determine chemical and microbial *** total carbon(TC),total nitrogen(TN),nitrate(NO_(3)^(-)-N),available phosphorus(P),microbial biomass carbon(MBC),microbial biomass nitrogen(MBN),microbial biomass phosphorus(MBP)and phenol oxidase,exoglucanase,β-glucosidase,N-acetyl-β-glucosaminidase,L-asparaginase and acid phosphatase activities were 29.3–70.1%lower at the 0–10 cm soil depth in the landslide sites than at the secondary forest sites,whereas total phosphorus(TP)and ammonium(NH_(4)^(+)-N)were unaffected by the landslides.N-related enzymes,N-acetyl-β-glucosaminidase and L-asparaginase were reduced by more than 65%in the landslide sites,consistent with the decrease in nitrate concentration at the same 0–10 cm *** a depth of 10–20 cm,the variations in the soil properties were consistent with those at the 0–10 cm *** results demonstrated that soil chemical and microbial properties were significantly disrupted after the landslides,even though the landslides had occurred 6 years earlier.A long time is thus needed to restore the original C and nutrient *** temperate secondary forests,soil TC and TN contents were found to be more suitable for estimating the sta